component
74HC4520PW
Public Made by Adomby adom
Nexperia Counters, Dividers, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown74HC4520PW
Nexperia · Counters, Dividers · TSSOP-16
74HC4520PW from Nexperia, in a TSSOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1CP0 | input | Clock input, LOW-to-HIGH edge-triggered; counter 1 advances on this rising edge when 1CP1 is HIGH. |
| 2 | 1CP1 | input | Clock input, HIGH-to-LOW edge-triggered; counter 1 advances on this falling edge when 1CP0 is LOW. |
| 3 | 1Q0 | output | Buffered output of bit 0 of counter 1, forced LOW by an active 1MR. |
| 4 | 1Q1 | output | Buffered output of bit 1 of counter 1, forced LOW by an active 1MR. |
| 5 | 1Q2 | output | Buffered output of bit 2 of counter 1, forced LOW by an active 1MR. |
| 6 | 1Q3 | output | Buffered output of bit 3 of counter 1, forced LOW by an active 1MR. |
| 7 | 1MR | input | Asynchronous master reset for counter 1, active HIGH; a HIGH forces 1Q0 to 1Q3 LOW independent of the clock inputs. |
| 8 | GND | power_in | Ground (0 V) reference for all voltages. |
| 9 | 2CP0 | input | Clock input, LOW-to-HIGH edge-triggered; counter 2 advances on this rising edge when 2CP1 is HIGH. |
| 10 | 2CP1 | input | Clock input, HIGH-to-LOW edge-triggered; counter 2 advances on this falling edge when 2CP0 is LOW. |
| 11 | 2Q0 | output | Buffered output of bit 0 of counter 2, forced LOW by an active 2MR. |
| 12 | 2Q1 | output | Buffered output of bit 1 of counter 2, forced LOW by an active 2MR. |
| 13 | 2Q2 | output | Buffered output of bit 2 of counter 2, forced LOW by an active 2MR. |
| 14 | 2Q3 | output | Buffered output of bit 3 of counter 2, forced LOW by an active 2MR. |
| 15 | 2MR | input | Asynchronous master reset for counter 2, active HIGH; a HIGH forces 2Q0 to 2Q3 LOW independent of the clock inputs. |
| 16 | VCC | power_in | Supply voltage; recommended 2.0 V to 6.0 V for 74HC4520 and 4.5 V to 5.5 V for 74HCT4520. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | TSSOP-16 |
| Category | Logic |
| Pins | 16 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage | VCC | -0.5 | 7 | V | 4 | ||
| Input clamping current | IIK | -20 | 20 | mA | VI < -0.5 V or VI > VCC + 0.5 V | 4 | |
| Output clamping current | IOK | -20 | 20 | mA | VO < -0.5 V or VO > VCC + 0.5 V | 4 | |
| Output current | IO | -25 | 25 | mA | VO = -0.5 V to VCC + 0.5 V | 4 | |
| Supply current | ICC | 50 | mA | 4 | |||
| Ground current | IGND | -50 | mA | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| Total power dissipation | Ptot | 500 | mW | 4 | |||
| Supply voltage (74HC4520) | VCC | 2 | 5 | 6 | V | 4 | |
| Input voltage | VI | 0 | V | 4 | |||
| Output voltage | VO | 0 | V | 4 | |||
| Ambient temperature | Tamb | -40 | 25 | 125 | °C | 4 | |
| Input transition rise and fall rate | Δt/ΔV | 625 | ns/V | VCC = 2.0 V | 4 | ||
| Input transition rise and fall rate | Δt/ΔV | 1.67 | 139 | ns/V | VCC = 4.5 V | 4 | |
| Input transition rise and fall rate | Δt/ΔV | 83 | ns/V | VCC = 6.0 V | 4 | ||
| HIGH-level input voltage | VIH | 1.5 | 1.2 | V | VCC = 2.0 V; min/max over -40 °C to +125 °C | 4 | |
| HIGH-level input voltage | VIH | 3.15 | 2.4 | V | VCC = 4.5 V; min/max over -40 °C to +125 °C | 4 | |
| HIGH-level input voltage | VIH | 4.2 | 3.2 | V | VCC = 6.0 V; min/max over -40 °C to +125 °C | 4 | |
| LOW-level input voltage | VIL | 0.8 | 0.5 | V | VCC = 2.0 V; min/max over -40 °C to +125 °C | 4 | |
| LOW-level input voltage | VIL | 2.1 | 1.35 | V | VCC = 4.5 V; min/max over -40 °C to +125 °C | 4 | |
| LOW-level input voltage | VIL | 2.8 | 1.8 | V | VCC = 6.0 V; min/max over -40 °C to +125 °C | 4 | |
| HIGH-level output voltage | VOH | 1.9 | 2 | V | VI = VIH or VIL; IO = -20 μA; VCC = 2.0 V; min over -40 °C to +125 °C | 5 | |
| HIGH-level output voltage | VOH | 4.4 | 4.5 | V | VI = VIH or VIL; IO = -20 μA; VCC = 4.5 V; min over -40 °C to +125 °C | 5 | |
| HIGH-level output voltage | VOH | 5.9 | 6 | V | VI = VIH or VIL; IO = -20 μA; VCC = 6.0 V; min over -40 °C to +125 °C | 5 | |
| HIGH-level output voltage | VOH | 3.7 | 4.32 | V | VI = VIH or VIL; IO = -4.0; VCC = 4.5 V; min over -40 °C to +125 °C | 5 | |
| HIGH-level output voltage | VOH | 5.2 | 5.81 | V | VI = VIH or VIL; IO = -5.2; VCC = 6.0 V; min over -40 °C to +125 °C | 5 | |
| LOW-level output voltage | VOL | 0 | 0.1 | V | VI = VIH or VIL; IO = 20 μA; VCC = 2.0 V; max over -40 °C to +125 °C | 5 | |
| LOW-level output voltage | VOL | 0.15 | 0.4 | V | VI = VIH or VIL; IO = 4.0 mA; VCC = 4.5 V; max over -40 °C to +125 °C | 5 | |
| LOW-level output voltage | VOL | 0.16 | 0.4 | V | VI = VIH or VIL; IO = 5.2 mA; VCC = 6.0 V; max over -40 °C to +125 °C | 5 | |
| Input leakage current | II | -1 | 1 | μA | VI = VCC or GND; VCC = 6.0 V; -40 °C to +125 °C | 5 | |
| Supply current | ICC | 160 | μA | VI = VCC or GND; IO = 0 A; VCC = 6.0 V; -40 °C to +125 °C | 5 | ||
| Propagation delay nCP0 to nQn | tpd | 77 | 360 | ns | VCC = 2.0 V; CL = 50 pF; max over -40 °C to +125 °C | 6 | |
| Propagation delay nCP0 to nQn | tpd | 28 | 72 | ns | VCC = 4.5 V; CL = 50 pF; max over -40 °C to +125 °C | 6 | |
| Propagation delay nCP0 to nQn | tpd | 22 | 61 | ns | VCC = 6.0 V; CL = 50 pF; max over -40 °C to +125 °C | 6 | |
| Propagation delay nCP1 to nQn | tpd | 77 | 360 | ns | VCC = 2.0 V; CL = 50 pF; max over -40 °C to +125 °C | 6 | |
| Propagation delay nCP1 to nQn | tpd | 28 | 72 | ns | VCC = 4.5 V; CL = 50 pF; max over -40 °C to +125 °C | 6 | |
| Propagation delay nCP1 to nQn | tpd | 22 | 61 | ns | VCC = 6.0 V; CL = 50 pF; max over -40 °C to +125 °C | 6 | |
| HIGH to LOW propagation delay nMR to nQn | tPHL | 44 | 225 | ns | VCC = 2.0 V; CL = 50 pF; max over -40 °C to +125 °C | 6 | |
| HIGH to LOW propagation delay nMR to nQn | tPHL | 16 | 45 | ns | VCC = 4.5 V; CL = 50 pF; max over -40 °C to +125 °C | 6 | |
| HIGH to LOW propagation delay nMR to nQn | tPHL | 13 | 38 | ns | VCC = 6.0 V; CL = 50 pF; max over -40 °C to +125 °C | 6 | |
| Transition time nQn | tt | 19 | 110 | ns | VCC = 2.0 V; CL = 50 pF; max over -40 °C to +125 °C | 6 | |
| Transition time nQn | tt | 7 | 22 | ns | VCC = 4.5 V; CL = 50 pF; max over -40 °C to +125 °C | 6 | |
| Transition time nQn | tt | 6 | 19 | ns | VCC = 6.0 V; CL = 50 pF; max over -40 °C to +125 °C | 6 | |
| Pulse width nCP0, nCP1 HIGH or LOW | tW | 120 | 22 | ns | VCC = 2.0 V; min over -40 °C to +125 °C | 6 | |
| Pulse width nCP0, nCP1 HIGH or LOW | tW | 24 | 8 | ns | VCC = 4.5 V; min over -40 °C to +125 °C | 6 | |
| Pulse width nCP0, nCP1 HIGH or LOW | tW | 20 | 6 | ns | VCC = 6.0 V; min over -40 °C to +125 °C | 6 | |
| Pulse width nMR HIGH | tW | 180 | 39 | ns | VCC = 2.0 V; min over -40 °C to +125 °C | 6 | |
| Pulse width nMR HIGH | tW | 36 | 14 | ns | VCC = 4.5 V; min over -40 °C to +125 °C | 6 | |
| Pulse width nMR HIGH | tW | 31 | 11 | ns | VCC = 6.0 V; min over -40 °C to +125 °C | 6 | |
| Recovery time nMR to nCP0, nCP1 | trec | 0 | -28 | ns | VCC = 2.0 V; min over -40 °C to +125 °C | 6 | |
| Recovery time nMR to nCP0, nCP1 | trec | 0 | -10 | ns | VCC = 4.5 V; min over -40 °C to +125 °C | 6 | |
| Recovery time nMR to nCP0, nCP1 | trec | 0 | -8 | ns | VCC = 6.0 V; min over -40 °C to +125 °C | 6 | |
| Set-up time nCP0 to nCP1; nCP1 to nCP0 | tsu | 120 | 14 | ns | VCC = 2.0 V; min over -40 °C to +125 °C | 6 | |
| Set-up time nCP0 to nCP1; nCP1 to nCP0 | tsu | 24 | 5 | ns | VCC = 4.5 V; min over -40 °C to +125 °C | 6 | |
| Set-up time nCP0 to nCP1; nCP1 to nCP0 | tsu | 20 | 4 | ns | VCC = 6.0 V; min over -40 °C to +125 °C | 6 | |
| Maximum frequency nCP0, nCP1 | fmax | 4 | 19 | MHz | VCC = 2.0 V; min over -40 °C to +125 °C | 7 | |
| Maximum frequency nCP0, nCP1 | fmax | 20 | 58 | MHz | VCC = 4.5 V; min over -40 °C to +125 °C | 7 | |
| Maximum frequency nCP0, nCP1 | fmax | 24 | 69 | MHz | VCC = 6.0 V; min over -40 °C to +125 °C | 7 |
CAD (KiCad official)
- Symbol:
74HC4520PW - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
74hc4520pw-etched.step/74hc4520pw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);74hc4520pw.step/74hc4520pw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (14 pp, sha256
2d8a801dc7d6b501, retrieved 2026-10-18, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).