component
Component Library
Public Made by Adomby adom
A browsable index of 48 datasheet-first component pages: real manufacturer datasheets, KiCad-official CAD, and full provenance.
← Commit history
index: add Batch 27 (2n7000, 1n4148, tl074, sn74hc283, lm1117) -> 133 components
2 files changed
+38−13
README.md+11−6@@ -1,10 +1,10 @@ # Component pages -128 electronic components, each built datasheet-first: the pinout and specs come from the manufacturer datasheet (recorded with sha256 + page cites), paired with real KiCad-official symbol, footprint, and 3D model, cross-highlighting viewers, and full provenance.+133 electronic components, each built datasheet-first: the pinout and specs come from the manufacturer datasheet (recorded with sha256 + page cites), paired with real KiCad-official symbol, footprint, and 3D model, cross-highlighting viewers, and full provenance. Every page lives at `wiki.adom.inc/ray/<part>`. Use the interactive view above to search and filter by category, package, or function. -## Diode (7)+## Diode (8) - [1N4148W](https://wiki.adom.inc/ray/1n4148w): Fast switching diode, SOD-123. Diodes Inc fast switching diode, SOD-123. 100 V, 300 mA, VF 0.715 V, trr 4 ns. - [B340A](https://wiki.adom.inc/ray/b340a): Schottky barrier rectifier, SMA (DO-214AC). Diodes Inc 3.0 A Schottky rectifier, SMA (DO-214AC). VRRM 40 V, VF 0.50 V max @ 3 A, AEC-Q101.@@ -13,8 +13,9 @@ Every page lives at `wiki.adom.inc/ray/<part>`. Use the interactive view above t - [1N5819](https://wiki.adom.inc/ray/1n5819): Schottky rectifier, DO-41. Diodes Inc 1 A Schottky barrier rectifier, DO-41. 40 V, low VF ~0.6 V, fast. Datasheet-verified. - [BAT54S](https://wiki.adom.inc/ray/bat54s): Schottky diode (series pair), SOT-23. Diodes Inc series dual Schottky, SOT-23. 30 V, 200 mA, low VF. Two diodes sharing a common node. Datasheet-verified. - [1N4733A](https://wiki.adom.inc/ray/1n4733a): Zener diode (1 W), DO-41. Diodes Inc 5.1 V 1 W Zener diode, DO-41. Voltage reference and clamping. Datasheet-verified.+- [1N4148](https://wiki.adom.inc/ray/1n4148): Small-signal switching diode, DO-35. Diodes Inc fast switching diode, DO-35. 100 V, 300 mA, 4 ns recovery. The through-hole 1N4148W. Datasheet-verified. -## Transistor (9)+## Transistor (10) - [2N7002](https://wiki.adom.inc/ray/2n7002): N-channel MOSFET, SOT-23. Diodes Inc N-channel enhancement-mode MOSFET, SOT-23. 60 V, RDS(on) 5 Ohm, ID 210 mA. - [AO3401A](https://wiki.adom.inc/ray/ao3401a): P-channel MOSFET, SOT-23. AOS P-channel MOSFET, SOT-23. -30 V, -4 A, RDS(on) <50 mOhm @ VGS=-10 V.@@ -25,6 +26,7 @@ Every page lives at `wiki.adom.inc/ray/<part>`. Use the interactive view above t - [BSS138](https://wiki.adom.inc/ray/bss138-nmos): N-channel logic-level MOSFET, SOT-23. Diodes Inc N-channel logic-level MOSFET, SOT-23. 50 V, low Vgs(th), the I2C level-shift MOSFET. Datasheet-verified. - [IRF540](https://wiki.adom.inc/ray/irf540): N-channel power MOSFET, TO-220. Vishay N-channel power MOSFET, TO-220. 100 V, 28 A, RDS(on) 0.077 ohm. Standard-gate power switch. Datasheet-verified. - [IRF9540](https://wiki.adom.inc/ray/irf9540n): P-channel power MOSFET, TO-220. Vishay P-channel power MOSFET, TO-220. -100 V, -23 A, RDS(on) 0.20 ohm. The P-ch complement of IRF540. Datasheet-verified.+- [2N7000](https://wiki.adom.inc/ray/2n7000): N-channel logic-level MOSFET, TO-92. onsemi N-channel logic-level MOSFET, TO-92. 60 V, 200 mA, low Vgs(th). The through-hole 2N7002. Datasheet-verified. ## Optoelectronics (2) @@ -36,7 +38,7 @@ Every page lives at `wiki.adom.inc/ray/<part>`. Use the interactive view above t - [PC817](https://wiki.adom.inc/ray/pc817): Phototransistor optocoupler, DIP-4. Sharp phototransistor optocoupler, DIP-4. 5.0 kVrms isolation, IRED + NPN phototransistor. - [6N137](https://wiki.adom.inc/ray/6n137): High-speed logic optocoupler, DIP-8. onsemi high-speed logic-gate optocoupler, DIP-8. 10 Mbit/s, open-collector output with enable. Datasheet-verified. -## Amplifier (7)+## Amplifier (8) - [LM358](https://wiki.adom.inc/ray/lm358): Dual operational amplifier, SOIC-8. TI dual op-amp, SOIC-8. 3-30 V single/split supply, 0.7-1.2 MHz GBW, input range includes ground. - [NE5532](https://wiki.adom.inc/ray/ne5532): Dual low-noise (audio) op-amp, SOIC-8. TI dual low-noise op-amp, SOIC-8. 10 MHz GBW, 9 V/us slew, 5 nV/sqrtHz. Datasheet-verified.@@ -45,6 +47,7 @@ Every page lives at `wiki.adom.inc/ray/<part>`. Use the interactive view above t - [LM324](https://wiki.adom.inc/ray/lm324): Quad op-amp, SOIC-14. TI quad general-purpose op-amp, SOIC-14. Single-supply 3-32 V, low power. The quad LM358. Datasheet-verified. - [INA128](https://wiki.adom.inc/ray/ina128): Instrumentation amplifier, SOIC-8. TI precision instrumentation amplifier, SOIC-8. Gain 1-10000 set by one resistor, high CMRR, low drift. Datasheet-verified. - [OPA2134](https://wiki.adom.inc/ray/opa2134): Dual audio op-amp (low distortion), SOIC-8. TI (Burr-Brown) dual FET-input audio op-amp, SOIC-8. 0.00008% THD, low noise, 8 MHz. Datasheet-verified.+- [TL074](https://wiki.adom.inc/ray/tl074): Quad JFET-input op-amp, SOIC-14. TI quad JFET-input op-amp, SOIC-14. 3 MHz GBW, 13 V/us slew, high input impedance. The quad TL072. Datasheet-verified. ## Comparator (3) @@ -52,7 +55,7 @@ Every page lives at `wiki.adom.inc/ray/<part>`. Use the interactive view above t - [LM339](https://wiki.adom.inc/ray/lm339): Quad differential comparator, SOIC-14. TI quad differential comparator, SOIC-14. Open-collector outputs, single or split 2-36 V supply. Datasheet-verified. - [LM311](https://wiki.adom.inc/ray/lm311): Precision voltage comparator, SOIC-8. TI single precision voltage comparator, SOIC-8. Open-collector output, strobe, offset balance, single or split supply. Datasheet-verified. -## Power Management (16)+## Power Management (17) - [AP2112K-3.3](https://wiki.adom.inc/ray/ap2112k-3.3): LDO linear regulator, SOT-23-5. Diodes Inc 600 mA CMOS LDO, fixed 3.3 V, SOT-23-5. 250 mV dropout, 55 uA Iq, enable pin. - [LM2596 (adjustable buck)](https://wiki.adom.inc/ray/lm2596-adj): Buck switching regulator, TO-263-5 (D2PAK). TI 150 kHz 3 A adjustable buck regulator, TO-263. VOUT 1.2-37 V, integrated switch.@@ -70,6 +73,7 @@ Every page lives at `wiki.adom.inc/ray/<part>`. Use the interactive view above t - [TC7660](https://wiki.adom.inc/ray/tc7660): Charge-pump voltage inverter, SOIC-8. Microchip switched-capacitor voltage inverter, SOIC-8. Makes a negative rail from a positive one with two capacitors. Datasheet-verified. - [LP2985](https://wiki.adom.inc/ray/lp2985): 150 mA low-noise LDO, SOT-23-5. TI 150 mA low-noise LDO, SOT-23-5. Fixed 3.3 V, enable, bypass pin for low noise. For RF/analog. Datasheet-verified. - [MC34063A](https://wiki.adom.inc/ray/mc34063): DC-DC converter controller, SOIC-8. TI monolithic DC-DC converter control, SOIC-8. Buck, boost, or inverting; on-chip 1.5 A switch, 3-40 V. Datasheet-verified.+- [LM1117-3.3](https://wiki.adom.inc/ray/lm1117): 800 mA LDO regulator (fixed 3.3 V), SOT-223. TI 800 mA low-dropout regulator, SOT-223. Fixed 3.3 V, 1.2 V dropout, current limit + thermal. Datasheet-verified. ## Data Converter (7) @@ -96,7 +100,7 @@ Every page lives at `wiki.adom.inc/ray/<part>`. Use the interactive view above t - [23LC1024](https://wiki.adom.inc/ray/23lc1024): 1 Mbit SPI SRAM, SOIC-8. Microchip 1 Mbit (128 KB) serial SRAM, SOIC-8. SPI/SDI/SQI, unlimited endurance, fast random access. Datasheet-verified. - [25LC256](https://wiki.adom.inc/ray/25lc256): 256 Kbit SPI EEPROM, SOIC-8. Microchip 256 Kbit (32 KB) SPI EEPROM, SOIC-8. Byte/page write, 1M+ cycles, write protect. The SPI 24LC256. Datasheet-verified. -## Logic IC (21)+## Logic IC (22) - [SN74HC00](https://wiki.adom.inc/ray/sn74hc00): Quad 2-input NAND gate, SOIC-14. TI quad 2-input NAND gate, SOIC-14. HC CMOS, Y = NOT(A AND B), 2-6 V. - [SN74HC14](https://wiki.adom.inc/ray/sn74hc14): Hex Schmitt-trigger inverter, SOIC-14. TI hex Schmitt-trigger inverter, SOIC-14. 6 inverters, ~0.9 V hysteresis, 2-6 V.@@ -119,6 +123,7 @@ Every page lives at `wiki.adom.inc/ray/<part>`. Use the interactive view above t - [CD4094B](https://wiki.adom.inc/ray/cd4094b): 8-stage shift-and-store register, SOIC-16. TI 8-stage serial shift register with output latch and 3-state outputs, SOIC-16. Like a CMOS 74HC595. 3-18 V. Datasheet-verified. - [SN74HC237](https://wiki.adom.inc/ray/sn74hc237): 3-to-8 decoder with address latch, SOIC-16. TI 3-to-8 line decoder/demux with address latch, SOIC-16. Active-high outputs, latch-enable. HC 2-6 V. Datasheet-verified. - [SN74HC259](https://wiki.adom.inc/ray/sn74hc259): 8-bit addressable latch, SOIC-16. TI 8-bit addressable latch, SOIC-16. Writes one of 8 latches by address; also demux or 8-bit memory. HC 2-6 V. Datasheet-verified.+- [SN74HC283](https://wiki.adom.inc/ray/sn74hc283): 4-bit binary full adder, SOIC-16. TI 4-bit binary full adder with fast carry, SOIC-16. Adds two 4-bit numbers + carry-in, cascadable. HC 2-6 V. Datasheet-verified. ## Clock IC (2)
readme.html+27−7@@ -36,15 +36,15 @@ h1{font-size:30px;font-weight:800;letter-spacing:-.5px;margin:6px 0 8px} <div class="top"> <div class="eyebrow">Adom Component Library</div> <h1>Component pages</h1>- <p class="lede">128 electronic components, each built <b>datasheet-first</b>: the pinout and specs come from the manufacturer datasheet (recorded with sha256 + page cites), paired with real KiCad-official symbol, footprint, and 3D model, cross-highlighting viewers, and full provenance. Click any card to open its page.</p>- <div class="stats"><div class="stat"><b>128</b><span>components</span></div><div class="stat"><b>24</b><span>categories</span></div><div class="stat"><b>100%</b><span>datasheet-sourced</span></div></div>+ <p class="lede">133 electronic components, each built <b>datasheet-first</b>: the pinout and specs come from the manufacturer datasheet (recorded with sha256 + page cites), paired with real KiCad-official symbol, footprint, and 3D model, cross-highlighting viewers, and full provenance. Click any card to open its page.</p>+ <div class="stats"><div class="stat"><b>133</b><span>components</span></div><div class="stat"><b>24</b><span>categories</span></div><div class="stat"><b>100%</b><span>datasheet-sourced</span></div></div> </div> <div class="controls"> <input id="q" type="text" placeholder="Search by part number, function, package..." autocomplete="off"> <div class="chips"><button class="chip active" data-cat="__all">All</button><button class="chip" data-cat="Diode">Diode</button><button class="chip" data-cat="Transistor">Transistor</button><button class="chip" data-cat="Optoelectronics">Optoelectronics</button><button class="chip" data-cat="Optocoupler">Optocoupler</button><button class="chip" data-cat="Amplifier">Amplifier</button><button class="chip" data-cat="Comparator">Comparator</button><button class="chip" data-cat="Power Management">Power Management</button><button class="chip" data-cat="Data Converter">Data Converter</button><button class="chip" data-cat="Microcontroller">Microcontroller</button><button class="chip" data-cat="Memory">Memory</button><button class="chip" data-cat="Logic IC">Logic IC</button><button class="chip" data-cat="Clock IC">Clock IC</button><button class="chip" data-cat="Timer">Timer</button><button class="chip" data-cat="Driver">Driver</button><button class="chip" data-cat="Motor Driver">Motor Driver</button><button class="chip" data-cat="Interface IC">Interface IC</button><button class="chip" data-cat="Multiplexer">Multiplexer</button><button class="chip" data-cat="Sensor">Sensor</button><button class="chip" data-cat="Circuit Protection">Circuit Protection</button><button class="chip" data-cat="Resistor">Resistor</button><button class="chip" data-cat="Capacitor">Capacitor</button><button class="chip" data-cat="Inductor">Inductor</button><button class="chip" data-cat="Crystal">Crystal</button><button class="chip" data-cat="Connector">Connector</button></div> </div> <div id="list"><section class="catsec" data-cat="Diode">- <h2 class="cathdr">Diode <span class="catcount">7</span></h2>+ <h2 class="cathdr">Diode <span class="catcount">8</span></h2> <div class="grid"><a class="card" href="https://wiki.adom.inc/ray/1n4148w" target="_blank" rel="noopener" data-cat="Diode" data-search="1n4148w fast switching diode sod-123 diodes inc fast switching diode, sod-123. 100 v, 300 ma, vf 0.715 v, trr 4 ns. diode"> <div class="card-head"><span class="mpn">1N4148W</span><span class="pkg">SOD-123</span></div> <div class="sub">Fast switching diode</div>@@ -73,9 +73,13 @@ h1{font-size:30px;font-weight:800;letter-spacing:-.5px;margin:6px 0 8px} <div class="card-head"><span class="mpn">1N4733A</span><span class="pkg">DO-41</span></div> <div class="sub">Zener diode (1 W)</div> <div class="brief">Diodes Inc 5.1 V 1 W Zener diode, DO-41. Voltage reference and clamping. Datasheet-verified.</div>+ </a><a class="card" href="https://wiki.adom.inc/ray/1n4148" target="_blank" rel="noopener" data-cat="Diode" data-search="1n4148 small-signal switching diode do-35 diodes inc fast switching diode, do-35. 100 v, 300 ma, 4 ns recovery. the through-hole 1n4148w. datasheet-verified. diode">+ <div class="card-head"><span class="mpn">1N4148</span><span class="pkg">DO-35</span></div>+ <div class="sub">Small-signal switching diode</div>+ <div class="brief">Diodes Inc fast switching diode, DO-35. 100 V, 300 mA, 4 ns recovery. The through-hole 1N4148W. Datasheet-verified.</div> </a></div> </section><section class="catsec" data-cat="Transistor">- <h2 class="cathdr">Transistor <span class="catcount">9</span></h2>+ <h2 class="cathdr">Transistor <span class="catcount">10</span></h2> <div class="grid"><a class="card" href="https://wiki.adom.inc/ray/2n7002" target="_blank" rel="noopener" data-cat="Transistor" data-search="2n7002 n-channel mosfet sot-23 diodes inc n-channel enhancement-mode mosfet, sot-23. 60 v, rds(on) 5 ohm, id 210 ma. transistor"> <div class="card-head"><span class="mpn">2N7002</span><span class="pkg">SOT-23</span></div> <div class="sub">N-channel MOSFET</div>@@ -112,6 +116,10 @@ h1{font-size:30px;font-weight:800;letter-spacing:-.5px;margin:6px 0 8px} <div class="card-head"><span class="mpn">IRF9540</span><span class="pkg">TO-220</span></div> <div class="sub">P-channel power MOSFET</div> <div class="brief">Vishay P-channel power MOSFET, TO-220. -100 V, -23 A, RDS(on) 0.20 ohm. The P-ch complement of IRF540. Datasheet-verified.</div>+ </a><a class="card" href="https://wiki.adom.inc/ray/2n7000" target="_blank" rel="noopener" data-cat="Transistor" data-search="2n7000 n-channel logic-level mosfet to-92 onsemi n-channel logic-level mosfet, to-92. 60 v, 200 ma, low vgs(th). the through-hole 2n7002. datasheet-verified. transistor">+ <div class="card-head"><span class="mpn">2N7000</span><span class="pkg">TO-92</span></div>+ <div class="sub">N-channel logic-level MOSFET</div>+ <div class="brief">onsemi N-channel logic-level MOSFET, TO-92. 60 V, 200 mA, low Vgs(th). The through-hole 2N7002. Datasheet-verified.</div> </a></div> </section><section class="catsec" data-cat="Optoelectronics"> <h2 class="cathdr">Optoelectronics <span class="catcount">2</span></h2>@@ -136,7 +144,7 @@ h1{font-size:30px;font-weight:800;letter-spacing:-.5px;margin:6px 0 8px} <div class="brief">onsemi high-speed logic-gate optocoupler, DIP-8. 10 Mbit/s, open-collector output with enable. Datasheet-verified.</div> </a></div> </section><section class="catsec" data-cat="Amplifier">- <h2 class="cathdr">Amplifier <span class="catcount">7</span></h2>+ <h2 class="cathdr">Amplifier <span class="catcount">8</span></h2> <div class="grid"><a class="card" href="https://wiki.adom.inc/ray/lm358" target="_blank" rel="noopener" data-cat="Amplifier" data-search="lm358 dual operational amplifier soic-8 ti dual op-amp, soic-8. 3-30 v single/split supply, 0.7-1.2 mhz gbw, input range includes ground. amplifier"> <div class="card-head"><span class="mpn">LM358</span><span class="pkg">SOIC-8</span></div> <div class="sub">Dual operational amplifier</div>@@ -165,6 +173,10 @@ h1{font-size:30px;font-weight:800;letter-spacing:-.5px;margin:6px 0 8px} <div class="card-head"><span class="mpn">OPA2134</span><span class="pkg">SOIC-8</span></div> <div class="sub">Dual audio op-amp (low distortion)</div> <div class="brief">TI (Burr-Brown) dual FET-input audio op-amp, SOIC-8. 0.00008% THD, low noise, 8 MHz. Datasheet-verified.</div>+ </a><a class="card" href="https://wiki.adom.inc/ray/tl074" target="_blank" rel="noopener" data-cat="Amplifier" data-search="tl074 quad jfet-input op-amp soic-14 ti quad jfet-input op-amp, soic-14. 3 mhz gbw, 13 v/us slew, high input impedance. the quad tl072. datasheet-verified. amplifier">+ <div class="card-head"><span class="mpn">TL074</span><span class="pkg">SOIC-14</span></div>+ <div class="sub">Quad JFET-input op-amp</div>+ <div class="brief">TI quad JFET-input op-amp, SOIC-14. 3 MHz GBW, 13 V/us slew, high input impedance. The quad TL072. Datasheet-verified.</div> </a></div> </section><section class="catsec" data-cat="Comparator"> <h2 class="cathdr">Comparator <span class="catcount">3</span></h2>@@ -182,7 +194,7 @@ h1{font-size:30px;font-weight:800;letter-spacing:-.5px;margin:6px 0 8px} <div class="brief">TI single precision voltage comparator, SOIC-8. Open-collector output, strobe, offset balance, single or split supply. Datasheet-verified.</div> </a></div> </section><section class="catsec" data-cat="Power Management">- <h2 class="cathdr">Power Management <span class="catcount">16</span></h2>+ <h2 class="cathdr">Power Management <span class="catcount">17</span></h2> <div class="grid"><a class="card" href="https://wiki.adom.inc/ray/ap2112k-3.3" target="_blank" rel="noopener" data-cat="Power Management" data-search="ap2112k-3.3 ldo linear regulator sot-23-5 diodes inc 600 ma cmos ldo, fixed 3.3 v, sot-23-5. 250 mv dropout, 55 ua iq, enable pin. power management"> <div class="card-head"><span class="mpn">AP2112K-3.3</span><span class="pkg">SOT-23-5</span></div> <div class="sub">LDO linear regulator</div>@@ -247,6 +259,10 @@ h1{font-size:30px;font-weight:800;letter-spacing:-.5px;margin:6px 0 8px} <div class="card-head"><span class="mpn">MC34063A</span><span class="pkg">SOIC-8</span></div> <div class="sub">DC-DC converter controller</div> <div class="brief">TI monolithic DC-DC converter control, SOIC-8. Buck, boost, or inverting; on-chip 1.5 A switch, 3-40 V. Datasheet-verified.</div>+ </a><a class="card" href="https://wiki.adom.inc/ray/lm1117" target="_blank" rel="noopener" data-cat="Power Management" data-search="lm1117-3.3 800 ma ldo regulator (fixed 3.3 v) sot-223 ti 800 ma low-dropout regulator, sot-223. fixed 3.3 v, 1.2 v dropout, current limit + thermal. datasheet-verified. power management">+ <div class="card-head"><span class="mpn">LM1117-3.3</span><span class="pkg">SOT-223</span></div>+ <div class="sub">800 mA LDO regulator (fixed 3.3 V)</div>+ <div class="brief">TI 800 mA low-dropout regulator, SOT-223. Fixed 3.3 V, 1.2 V dropout, current limit + thermal. Datasheet-verified.</div> </a></div> </section><section class="catsec" data-cat="Data Converter"> <h2 class="cathdr">Data Converter <span class="catcount">7</span></h2>@@ -322,7 +338,7 @@ h1{font-size:30px;font-weight:800;letter-spacing:-.5px;margin:6px 0 8px} <div class="brief">Microchip 256 Kbit (32 KB) SPI EEPROM, SOIC-8. Byte/page write, 1M+ cycles, write protect. The SPI 24LC256. Datasheet-verified.</div> </a></div> </section><section class="catsec" data-cat="Logic IC">- <h2 class="cathdr">Logic IC <span class="catcount">21</span></h2>+ <h2 class="cathdr">Logic IC <span class="catcount">22</span></h2> <div class="grid"><a class="card" href="https://wiki.adom.inc/ray/sn74hc00" target="_blank" rel="noopener" data-cat="Logic IC" data-search="sn74hc00 quad 2-input nand gate soic-14 ti quad 2-input nand gate, soic-14. hc cmos, y = not(a and b), 2-6 v. logic ic"> <div class="card-head"><span class="mpn">SN74HC00</span><span class="pkg">SOIC-14</span></div> <div class="sub">Quad 2-input NAND gate</div>@@ -407,6 +423,10 @@ h1{font-size:30px;font-weight:800;letter-spacing:-.5px;margin:6px 0 8px} <div class="card-head"><span class="mpn">SN74HC259</span><span class="pkg">SOIC-16</span></div> <div class="sub">8-bit addressable latch</div> <div class="brief">TI 8-bit addressable latch, SOIC-16. Writes one of 8 latches by address; also demux or 8-bit memory. HC 2-6 V. Datasheet-verified.</div>+ </a><a class="card" href="https://wiki.adom.inc/ray/sn74hc283" target="_blank" rel="noopener" data-cat="Logic IC" data-search="sn74hc283 4-bit binary full adder soic-16 ti 4-bit binary full adder with fast carry, soic-16. adds two 4-bit numbers + carry-in, cascadable. hc 2-6 v. datasheet-verified. logic ic">+ <div class="card-head"><span class="mpn">SN74HC283</span><span class="pkg">SOIC-16</span></div>+ <div class="sub">4-bit binary full adder</div>+ <div class="brief">TI 4-bit binary full adder with fast carry, SOIC-16. Adds two 4-bit numbers + carry-in, cascadable. HC 2-6 V. Datasheet-verified.</div> </a></div> </section><section class="catsec" data-cat="Clock IC"> <h2 class="cathdr">Clock IC <span class="catcount">2</span></h2>