component
SN74HC90DR
Public Made by Adomby adom
lingxingic Counters, Dividers, SOP-14. 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
markdownSN74HC90DR
lingxingic · Counters, Dividers · SOP-14
SN74HC90DR from lingxingic, in a SOP-14. 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 | CKB | input | Clock input of the ÷5 section, active on the falling edge; count state changes are initiated by the falling edge of the clock. |
| 2 | R0(1) | input | Master reset input; R0(1) and R0(2) both high with R9(1) and R9(2) not both high forces QD, QC, QB and QA low. |
| 3 | R0(2) | input | Master reset input; R0(2) and R0(1) both high with R9(1) and R9(2) not both high forces QD, QC, QB and QA low. |
| 4 | NC | unconnected | Not connected. |
| 5 | VCC | power_in | Supply voltage; SN74HC90 operates from 2 V to 6 V and SN74HCT90 from 4.5 V to 5.5 V, with absolute maximum VCC of -0.5 V to +7 V. |
| 6 | R9(1) | input | Master set input (preset 9); with R9(1) and R9(2) both high, the outputs are set to the count 9 (QD and QA high, QC and QB low). |
| 7 | R9(2) | input | Master set input (preset 9); with R9(2) and R9(1) both high, the outputs are set to the count 9 (QD and QA high, QC and QB low). |
| 8 | QC | output | Output from the ÷5 section (BCD count bit QC). |
| 9 | QB | output | Output from the ÷5 section (BCD count bit QB). |
| 10 | GND | power_in | Ground (0 V) reference for all voltages. |
| 11 | QD | output | Output from the ÷5 section (BCD count bit QD). |
| 12 | QA | output | Output from the ÷2 section; QA is connected to CKB externally for BCD count. |
| 13 | NC | unconnected | Not connected. |
| 14 | CKA | input | Clock input of the ÷2 section, active on the falling edge; QD is connected to CKA for bi-quinary count. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | lingxingic |
| Package | SOP-14 |
| Category | Logic |
| Pins | 14 |
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 | 8 | ||
| Supply current | ICC | 50 | mA | 8 | |||
| Ground current | IGND | -50 | mA | 8 | |||
| Input clamping current | IIK | -20 | 20 | mA | VI < -0.5V or VI > VCC+0.5V | 8 | |
| Output clamping current | IOK | -20 | 20 | mA | VO < -0.5V or VO > VCC+0.5V | 8 | |
| Output current | IO | -25 | 25 | mA | -0.5V < VO < VCC+0.5V | 8 | |
| Storage temperature | Tstg | -65 | 150 | ℃ | 8 | ||
| Soldering temperature | TL | 260 | ℃ | 10s, SOP/TSSOP | 8 | ||
| Supply voltage | VCC | 2 | 5 | 6 | V | 8 | |
| Ambient temperature | Tamb | -40 | 125 | ℃ | 8 | ||
| HIGH-level input voltage | VIH | 1.5 | 1.2 | V | VCC=2.0V; Tamb=-40℃ to +85℃ | 9 | |
| HIGH-level input voltage | VIH | 3.15 | 2.4 | V | VCC=4.5V; Tamb=-40℃ to +85℃ | 9 | |
| HIGH-level input voltage | VIH | 4.2 | 3.2 | V | VCC=6.0V; Tamb=-40℃ to +85℃ | 9 | |
| LOW-level input voltage | VIL | 0.8 | 0.5 | V | VCC=2.0V; Tamb=-40℃ to +85℃ | 9 | |
| LOW-level input voltage | VIL | 2.1 | 1.35 | V | VCC=4.5V; Tamb=-40℃ to +85℃ | 9 | |
| LOW-level input voltage | VIL | 2.8 | 1.8 | V | VCC=6.0V; Tamb=-40℃ to +85℃ | 9 | |
| HIGH-level output voltage | VOH | 1.9 | 2 | V | VCC=2.0V; IO=-20uA; Tamb=-40℃ to +85℃ | 9 | |
| HIGH-level output voltage | VOH | 4.4 | 4.5 | V | VCC=4.5V; IO=-20uA; Tamb=-40℃ to +85℃ | 9 | |
| HIGH-level output voltage | VOH | 5.9 | 6 | V | VCC=6.0V; IO=-20uA; Tamb=-40℃ to +85℃ | 9 | |
| HIGH-level output voltage | VOH | 3.84 | 4.32 | V | VCC=4.5V; IO=-4.0mA; Tamb=-40℃ to +85℃ | 9 | |
| HIGH-level output voltage | VOH | 5.34 | 5.81 | V | VCC=6.0V; IO=-5.2mA; Tamb=-40℃ to +85℃ | 9 | |
| LOW-level output voltage | VOL | 0 | 0.1 | V | VCC=2.0V; IO=20uA; Tamb=-40℃ to +85℃ | 9 | |
| LOW-level output voltage | VOL | 0.15 | 0.33 | V | VCC=4.5V; IO=4.0mA; Tamb=-40℃ to +85℃ | 9 | |
| LOW-level output voltage | VOL | 0.16 | 0.33 | V | VCC=6.0V; IO=5.2mA; Tamb=-40℃ to +85℃ | 9 | |
| Input leakage current | II | -1 | 1 | uA | VCC=6.0V; VI=VCC or GND; Tamb=-40℃ to +85℃ | 9 | |
| Supply current | ICC | 80 | uA | VCC=6.0V; VI=VCC or GND; IO=0A; Tamb=-40℃ to +85℃ | 9 | ||
| HIGH-level input voltage | VIH | 1.5 | V | VCC=2.0V; Tamb=-40℃ to +125℃ | 10 | ||
| HIGH-level input voltage | VIH | 3.15 | V | VCC=4.5V; Tamb=-40℃ to +125℃ | 10 | ||
| HIGH-level input voltage | VIH | 4.2 | V | VCC=6.0V; Tamb=-40℃ to +125℃ | 10 | ||
| LOW-level input voltage | VIL | 0.5 | V | VCC=2.0V; Tamb=-40℃ to +125℃ | 10 | ||
| LOW-level input voltage | VIL | 1.35 | V | VCC=4.5V; Tamb=-40℃ to +125℃ | 10 | ||
| LOW-level input voltage | VIL | 1.8 | V | VCC=6.0V; Tamb=-40℃ to +125℃ | 10 | ||
| HIGH-level output voltage | VOH | 1.9 | V | VCC=2.0V; IO=-20uA; Tamb=-40℃ to +125℃ | 10 | ||
| HIGH-level output voltage | VOH | 4.4 | V | VCC=4.5V; IO=-20uA; Tamb=-40℃ to +125℃ | 10 | ||
| HIGH-level output voltage | VOH | 5.9 | V | VCC=6.0V; IO=-20uA; Tamb=-40℃ to +125℃ | 10 | ||
| HIGH-level output voltage | VOH | 3.7 | V | VCC=4.5V; IO=-4.0mA; Tamb=-40℃ to +125℃ | 10 | ||
| HIGH-level output voltage | VOH | 5.2 | V | VCC=6.0V; IO=-5.2mA; Tamb=-40℃ to +125℃ | 10 | ||
| LOW-level output voltage | VOL | 0.1 | V | VCC=2.0V; IO=20uA; Tamb=-40℃ to +125℃ | 10 | ||
| LOW-level output voltage | VOL | 0.4 | V | VCC=4.5V; IO=4.0mA; Tamb=-40℃ to +125℃ | 10 | ||
| Input leakage current | II | -1 | 1 | uA | VCC=6.0V; VI=VCC or GND; Tamb=-40℃ to +125℃ | 10 | |
| Supply current | ICC | 160 | uA | VCC=6.0V; VI=VCC or GND; IO=0A; Tamb=-40℃ to +125℃ | 10 | ||
| LOW to HIGH propagation delay, CKn to Qn | tPLH | 48 | ns | VCC=5.0V; CL=15pF; Tamb=-40℃ to +85℃ | 11 | ||
| LOW to HIGH propagation delay, Set-to-9 to QA QD | tPLH | 30 | ns | VCC=5.0V; CL=15pF; Tamb=-40℃ to +85℃ | 11 | ||
| HIGH to LOW propagation delay, CKn to Qn | tPHL | 50 | ns | VCC=5.0V; CL=15pF; Tamb=-40℃ to +85℃ | 11 | ||
| HIGH to LOW propagation delay, Set-to-0 to ANY | tPHL | 40 | ns | VCC=5.0V; CL=15pF; Tamb=-40℃ to +85℃ | 11 | ||
| HIGH to LOW propagation delay, Set-to-9 to QB QC | tPHL | 40 | ns | VCC=5.0V; CL=15pF; Tamb=-40℃ to +85℃ | 11 | ||
| Maximum frequency, CKA to QA | fmax | 32 | MHZ | VCC=5.0V; CL=15pF; Tamb=-40℃ to +85℃ | 11 | ||
| Maximum frequency, CKB to QB | fmax | 16 | MHZ | VCC=5.0V; CL=15pF; Tamb=-40℃ to +85℃ | 11 | ||
| LOW to HIGH propagation delay, CKn to Qn | tPLH | 57.6 | ns | VCC=5.0V; CL=15pF; Tamb=-40℃ to +125℃ | 12 | ||
| LOW to HIGH propagation delay, Set-to-9 to QA QD | tPLH | 36 | ns | VCC=5.0V; CL=15pF; Tamb=-40℃ to +125℃ | 12 | ||
| HIGH to LOW propagation delay, CKn to Qn | tPHL | 60 | ns | VCC=5.0V; CL=15pF; Tamb=-40℃ to +125℃ | 12 | ||
| HIGH to LOW propagation delay, Set-to-0 to ANY | tPHL | 48 | ns | VCC=5.0V; CL=15pF; Tamb=-40℃ to +125℃ | 12 | ||
| HIGH to LOW propagation delay, Set-to-9 to QB QC | tPHL | 48 | ns | VCC=5.0V; CL=15pF; Tamb=-40℃ to +125℃ | 12 | ||
| Maximum frequency, CKA to QA | fmax | 26.7 | MHZ | VCC=5.0V; CL=15pF; Tamb=-40℃ to +125℃ | 12 | ||
| Maximum frequency, CKB to QB | fmax | 13.3 | MHZ | VCC=5.0V; CL=15pF; Tamb=-40℃ to +125℃ | 12 |
CAD (KiCad official)
- Symbol:
SN74HC90DR - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOP-14 (KiCad packages3D, STEP)
- 3D model files:
sn74hc90dr-etched.step/sn74hc90dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hc90dr.step/sn74hc90dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: lingxingic datasheet (18 pp, sha256
91ebe5c65ae35661, retrieved 2026-10-18, tier: lcsc) - 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).