component
CD74HC85E
Public Made by Adomby adom
Texas Instruments Digital Comparators, PDIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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CD74HC85E
Texas Instruments · Digital Comparators · PDIP-16
CD74HC85E from Texas Instruments, in a PDIP-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 | B3 | input | Most significant bit of 4-bit word B, with input voltage range 0V to VCC. |
| 2 | (A<B) IN | input | Cascading input for A<B from a previous stage, used for serial or parallel expansion. |
| 3 | (A=B) IN | input | Cascading input for A=B from a previous stage, which must be high for the A=B output in single-device use. |
| 4 | (A>B) IN | input | Cascading input for A>B from a previous stage, used for serial or parallel expansion. |
| 5 | (A>B) OUT | output | Buffered output that goes high when word A is greater than word B, with source or sink current up to ±25mA per output pin. |
| 6 | (A=B) OUT | output | Buffered output that goes high when word A equals word B, with source or sink current up to ±25mA per output pin. |
| 7 | (A<B) OUT | output | Buffered output that goes high when word A is less than word B, with source or sink current up to ±25mA per output pin. |
| 8 | GND | power_in | Ground pin, with maximum DC VCC or ground current of ±50mA. |
| 9 | B0 | input | Least significant bit of 4-bit word B, with input voltage range 0V to VCC. |
| 10 | A0 | input | Least significant bit of 4-bit word A, with input voltage range 0V to VCC. |
| 11 | B1 | input | Bit 1 of 4-bit word B, with input voltage range 0V to VCC. |
| 12 | A1 | input | Bit 1 of 4-bit word A, with input voltage range 0V to VCC. |
| 13 | A2 | input | Bit 2 of 4-bit word A, with input voltage range 0V to VCC. |
| 14 | B2 | input | Bit 2 of 4-bit word B, with input voltage range 0V to VCC. |
| 15 | A3 | input | Most significant bit of 4-bit word A, with input voltage range 0V to VCC. |
| 16 | VCC | power_in | Positive supply pin, with HC-type operating range of 2V to 6V and absolute maximum of -0.5V to 7V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | PDIP-16 |
| Category | Logic ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| High Level Input Voltage | VIH | 1.5 | V | VCC=2V, 25°C | 3 | ||
| High Level Input Voltage | VIH | 3.15 | V | VCC=4.5V, 25°C | 3 | ||
| High Level Input Voltage | VIH | 4.2 | V | VCC=6V, 25°C | 3 | ||
| Low Level Input Voltage | VIL | 0.5 | V | VCC=2V, 25°C | 3 | ||
| Low Level Input Voltage | VIL | 1.35 | V | VCC=4.5V, 25°C | 3 | ||
| Low Level Input Voltage | VIL | 1.8 | V | VCC=6V, 25°C | 3 | ||
| High Level Output Voltage CMOS Loads | VOH | 1.9 | V | VI=VIH or VIL; IO=-0.02mA; VCC=2V; 25°C | 3 | ||
| High Level Output Voltage CMOS Loads | VOH | 4.4 | V | VI=VIH or VIL; IO=-0.02mA; VCC=4.5V; 25°C | 3 | ||
| High Level Output Voltage CMOS Loads | VOH | 5.9 | V | VI=VIH or VIL; IO=-0.02mA; VCC=6V; 25°C | 3 | ||
| High Level Output Voltage TTL Loads | VOH | 3.98 | V | VI=VIH or VIL; IO=-4mA; VCC=4.5V; 25°C | 3 | ||
| High Level Output Voltage TTL Loads | VOH | 5.48 | V | VI=VIH or VIL; IO=-5.2mA; VCC=6V; 25°C | 3 | ||
| Low Level Output Voltage CMOS Loads | VOL | 0.1 | V | VI=VIH or VIL; IO=0.02mA; VCC=2V; 25°C | 3 | ||
| Low Level Output Voltage TTL Loads | VOL | 0.26 | V | VI=VIH or VIL; IO=4mA; VCC=4.5V; 25°C | 3 | ||
| Input Leakage Current | II | -0.1 | 0.1 | µA | VI=VCC or GND; VCC=6V; 25°C | 3 | |
| Quiescent Device Current | ICC | 8 | µA | VI=VCC or GND; IO=0; VCC=6V; 25°C | 3 | ||
| Quiescent Device Current | ICC | 80 | µA | VI=VCC or GND; IO=0; VCC=6V; -40°C to 85°C | 3 | ||
| Quiescent Device Current | ICC | 160 | µA | VI=VCC or GND; IO=0; VCC=6V; -55°C to 125°C | 3 | ||
| Propagation Delay An,Bn to (A>B) OUT, (A<B) OUT | tPLH, tPHL | 195 | ns | CL=50pF; VCC=2V; 25°C | 4 | ||
| Propagation Delay An,Bn to (A>B) OUT, (A<B) OUT | tPLH, tPHL | 39 | ns | CL=50pF; VCC=4.5V; 25°C | 4 | ||
| Propagation Delay An,Bn to (A>B) OUT, (A<B) OUT | tPLH, tPHL | 33 | ns | CL=50pF; VCC=6V; 25°C | 4 | ||
| Propagation Delay An,Bn to (A=B) OUT | tPLH, tPHL | 175 | ns | CL=50pF; VCC=2V; 25°C | 4 | ||
| Propagation Delay An,Bn to (A=B) OUT | tPLH, tPHL | 35 | ns | CL=50pF; VCC=4.5V; 25°C | 4 | ||
| Propagation Delay An,Bn to (A=B) OUT | tPLH, tPHL | 30 | ns | CL=50pF; VCC=6V; 25°C | 4 | ||
| Propagation Delay (A>B) IN, (A<B) IN, (A=B) IN to (A>B) OUT, (A<B) OUT | tPLH, tPHL | 140 | ns | CL=50pF; VCC=2V; 25°C | 5 | ||
| Propagation Delay (A>B) IN, (A<B) IN, (A=B) IN to (A>B) OUT, (A<B) OUT | tPLH, tPHL | 28 | ns | CL=50pF; VCC=4.5V; 25°C | 5 | ||
| Propagation Delay (A>B) IN, (A<B) IN, (A=B) IN to (A>B) OUT, (A<B) OUT | tPLH, tPHL | 24 | ns | CL=50pF; VCC=6V; 25°C | 5 | ||
| Propagation Delay (A>B) IN to (A=B) OUT | tPLH, tPHL | 120 | ns | CL=50pF; VCC=2V; 25°C | 5 | ||
| Propagation Delay (A>B) IN to (A=B) OUT | tPLH, tPHL | 24 | ns | CL=50pF; VCC=4.5V; 25°C | 5 | ||
| Propagation Delay (A>B) IN to (A=B) OUT | tPLH, tPHL | 20 | ns | CL=50pF; VCC=6V; 25°C | 5 | ||
| Output Transition Times | tTLH, tTHL | 75 | ns | CL=50pF; VCC=2V; 25°C | 5 | ||
| Output Transition Times | tTLH, tTHL | 15 | ns | CL=50pF; VCC=4.5V; 25°C | 5 | ||
| Output Transition Times | tTLH, tTHL | 13 | ns | CL=50pF; VCC=6V; 25°C | 5 | ||
| Input Capacitance | CIN | 10 | pF | 5 | |||
| Supply Voltage Range HC Types | VCC | 2 | 6 | V | HC types | 3 | |
| Temperature Range | TA | -55 | 125 | °C | 3 | ||
| Input Rise and Fall Time | tr, tf | 1000 | ns | VCC=2V | 3 | ||
| Input Rise and Fall Time | tr, tf | 500 | ns | VCC=4.5V | 3 | ||
| Input Rise and Fall Time | tr, tf | 400 | ns | VCC=6V | 3 | ||
| DC Supply Voltage | VCC | -0.5 | 7 | V | 3 | ||
| DC Input Diode Current | IIK | -20 | 20 | mA | VI < -0.5V or VI > VCC + 0.5V | 3 | |
| DC Output Diode Current | IOK | -20 | 20 | mA | VO < -0.5V or VO > VCC + 0.5V | 3 | |
| DC Output Source or Sink Current per Output Pin | IO | -25 | 25 | mA | VO > -0.5V or VO < VCC + 0.5V | 3 | |
| DC VCC or Ground Current | ICC or IGND | -50 | 50 | mA | 3 | ||
| Maximum Junction Temperature | TJ | 150 | °C | 3 | |||
| Maximum Storage Temperature Range | TSTG | -65 | 150 | °C | 3 | ||
| Maximum Lead Temperature (Soldering 10s) | 300 | °C | 10s | 3 |
CAD (KiCad official)
- Symbol:
CD74HC85E - Footprint:
Package_DIP:DIP-16_W7.62mm - 3D model: PDIP-16 (KiCad packages3D, STEP)
- 3D model files:
cd74hc85e-etched.step/cd74hc85e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cd74hc85e.step/cd74hc85e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (20 pp, sha256
4191b8c2e4732748, retrieved 2026-11-02, 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).
# CD74HC85E
**Texas Instruments** · Digital Comparators · PDIP-16
CD74HC85E from Texas Instruments, in a PDIP-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 | B3 | input | Most significant bit of 4-bit word B, with input voltage range 0V to VCC. |
| 2 | (A<B) IN | input | Cascading input for A<B from a previous stage, used for serial or parallel expansion. |
| 3 | (A=B) IN | input | Cascading input for A=B from a previous stage, which must be high for the A=B output in single-device use. |
| 4 | (A>B) IN | input | Cascading input for A>B from a previous stage, used for serial or parallel expansion. |
| 5 | (A>B) OUT | output | Buffered output that goes high when word A is greater than word B, with source or sink current up to ±25mA per output pin. |
| 6 | (A=B) OUT | output | Buffered output that goes high when word A equals word B, with source or sink current up to ±25mA per output pin. |
| 7 | (A<B) OUT | output | Buffered output that goes high when word A is less than word B, with source or sink current up to ±25mA per output pin. |
| 8 | GND | power_in | Ground pin, with maximum DC VCC or ground current of ±50mA. |
| 9 | B0 | input | Least significant bit of 4-bit word B, with input voltage range 0V to VCC. |
| 10 | A0 | input | Least significant bit of 4-bit word A, with input voltage range 0V to VCC. |
| 11 | B1 | input | Bit 1 of 4-bit word B, with input voltage range 0V to VCC. |
| 12 | A1 | input | Bit 1 of 4-bit word A, with input voltage range 0V to VCC. |
| 13 | A2 | input | Bit 2 of 4-bit word A, with input voltage range 0V to VCC. |
| 14 | B2 | input | Bit 2 of 4-bit word B, with input voltage range 0V to VCC. |
| 15 | A3 | input | Most significant bit of 4-bit word A, with input voltage range 0V to VCC. |
| 16 | VCC | power_in | Positive supply pin, with HC-type operating range of 2V to 6V and absolute maximum of -0.5V to 7V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | PDIP-16 |
| Category | Logic ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| High Level Input Voltage | VIH | 1.5 | | | V | VCC=2V, 25°C | 3 |
| High Level Input Voltage | VIH | 3.15 | | | V | VCC=4.5V, 25°C | 3 |
| High Level Input Voltage | VIH | 4.2 | | | V | VCC=6V, 25°C | 3 |
| Low Level Input Voltage | VIL | | | 0.5 | V | VCC=2V, 25°C | 3 |
| Low Level Input Voltage | VIL | | | 1.35 | V | VCC=4.5V, 25°C | 3 |
| Low Level Input Voltage | VIL | | | 1.8 | V | VCC=6V, 25°C | 3 |
| High Level Output Voltage CMOS Loads | VOH | 1.9 | | | V | VI=VIH or VIL; IO=-0.02mA; VCC=2V; 25°C | 3 |
| High Level Output Voltage CMOS Loads | VOH | 4.4 | | | V | VI=VIH or VIL; IO=-0.02mA; VCC=4.5V; 25°C | 3 |
| High Level Output Voltage CMOS Loads | VOH | 5.9 | | | V | VI=VIH or VIL; IO=-0.02mA; VCC=6V; 25°C | 3 |
| High Level Output Voltage TTL Loads | VOH | 3.98 | | | V | VI=VIH or VIL; IO=-4mA; VCC=4.5V; 25°C | 3 |
| High Level Output Voltage TTL Loads | VOH | 5.48 | | | V | VI=VIH or VIL; IO=-5.2mA; VCC=6V; 25°C | 3 |
| Low Level Output Voltage CMOS Loads | VOL | | | 0.1 | V | VI=VIH or VIL; IO=0.02mA; VCC=2V; 25°C | 3 |
| Low Level Output Voltage TTL Loads | VOL | | | 0.26 | V | VI=VIH or VIL; IO=4mA; VCC=4.5V; 25°C | 3 |
| Input Leakage Current | II | -0.1 | | 0.1 | µA | VI=VCC or GND; VCC=6V; 25°C | 3 |
| Quiescent Device Current | ICC | | | 8 | µA | VI=VCC or GND; IO=0; VCC=6V; 25°C | 3 |
| Quiescent Device Current | ICC | | | 80 | µA | VI=VCC or GND; IO=0; VCC=6V; -40°C to 85°C | 3 |
| Quiescent Device Current | ICC | | | 160 | µA | VI=VCC or GND; IO=0; VCC=6V; -55°C to 125°C | 3 |
| Propagation Delay An,Bn to (A>B) OUT, (A<B) OUT | tPLH, tPHL | | | 195 | ns | CL=50pF; VCC=2V; 25°C | 4 |
| Propagation Delay An,Bn to (A>B) OUT, (A<B) OUT | tPLH, tPHL | | | 39 | ns | CL=50pF; VCC=4.5V; 25°C | 4 |
| Propagation Delay An,Bn to (A>B) OUT, (A<B) OUT | tPLH, tPHL | | | 33 | ns | CL=50pF; VCC=6V; 25°C | 4 |
| Propagation Delay An,Bn to (A=B) OUT | tPLH, tPHL | | | 175 | ns | CL=50pF; VCC=2V; 25°C | 4 |
| Propagation Delay An,Bn to (A=B) OUT | tPLH, tPHL | | | 35 | ns | CL=50pF; VCC=4.5V; 25°C | 4 |
| Propagation Delay An,Bn to (A=B) OUT | tPLH, tPHL | | | 30 | ns | CL=50pF; VCC=6V; 25°C | 4 |
| Propagation Delay (A>B) IN, (A<B) IN, (A=B) IN to (A>B) OUT, (A<B) OUT | tPLH, tPHL | | | 140 | ns | CL=50pF; VCC=2V; 25°C | 5 |
| Propagation Delay (A>B) IN, (A<B) IN, (A=B) IN to (A>B) OUT, (A<B) OUT | tPLH, tPHL | | | 28 | ns | CL=50pF; VCC=4.5V; 25°C | 5 |
| Propagation Delay (A>B) IN, (A<B) IN, (A=B) IN to (A>B) OUT, (A<B) OUT | tPLH, tPHL | | | 24 | ns | CL=50pF; VCC=6V; 25°C | 5 |
| Propagation Delay (A>B) IN to (A=B) OUT | tPLH, tPHL | | | 120 | ns | CL=50pF; VCC=2V; 25°C | 5 |
| Propagation Delay (A>B) IN to (A=B) OUT | tPLH, tPHL | | | 24 | ns | CL=50pF; VCC=4.5V; 25°C | 5 |
| Propagation Delay (A>B) IN to (A=B) OUT | tPLH, tPHL | | | 20 | ns | CL=50pF; VCC=6V; 25°C | 5 |
| Output Transition Times | tTLH, tTHL | | | 75 | ns | CL=50pF; VCC=2V; 25°C | 5 |
| Output Transition Times | tTLH, tTHL | | | 15 | ns | CL=50pF; VCC=4.5V; 25°C | 5 |
| Output Transition Times | tTLH, tTHL | | | 13 | ns | CL=50pF; VCC=6V; 25°C | 5 |
| Input Capacitance | CIN | | | 10 | pF | | 5 |
| Supply Voltage Range HC Types | VCC | 2 | | 6 | V | HC types | 3 |
| Temperature Range | TA | -55 | | 125 | °C | | 3 |
| Input Rise and Fall Time | tr, tf | | | 1000 | ns | VCC=2V | 3 |
| Input Rise and Fall Time | tr, tf | | | 500 | ns | VCC=4.5V | 3 |
| Input Rise and Fall Time | tr, tf | | | 400 | ns | VCC=6V | 3 |
| DC Supply Voltage | VCC | -0.5 | | 7 | V | | 3 |
| DC Input Diode Current | IIK | -20 | | 20 | mA | VI < -0.5V or VI > VCC + 0.5V | 3 |
| DC Output Diode Current | IOK | -20 | | 20 | mA | VO < -0.5V or VO > VCC + 0.5V | 3 |
| DC Output Source or Sink Current per Output Pin | IO | -25 | | 25 | mA | VO > -0.5V or VO < VCC + 0.5V | 3 |
| DC VCC or Ground Current | ICC or IGND | -50 | | 50 | mA | | 3 |
| Maximum Junction Temperature | TJ | | | 150 | °C | | 3 |
| Maximum Storage Temperature Range | TSTG | -65 | | 150 | °C | | 3 |
| Maximum Lead Temperature (Soldering 10s) | | | | 300 | °C | 10s | 3 |
## CAD (KiCad official)
- Symbol: `CD74HC85E`
- Footprint: `Package_DIP:DIP-16_W7.62mm`
- 3D model: PDIP-16 (KiCad packages3D, STEP)
- 3D model files: `cd74hc85e-etched.step` / `cd74hc85e-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd74hc85e.step` / `cd74hc85e.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/cd74hc85e.pdf) (20 pp, sha256 `4191b8c2e4732748`, retrieved 2026-11-02, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/cd74hc85e-datasheet.pdf)