component
SN74AHC595DR
Public Made by Adomby adom
Texas Instruments Shift Registers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownSN74AHC595DR
Texas Instruments · Shift Registers · SOIC-16
SN74AHC595DR from Texas Instruments, in a SOIC-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 | QB | output | Parallel 3-state output bit B of the 8-bit storage register, forced to high impedance when OE is high. |
| 2 | QC | output | Parallel 3-state output bit C of the 8-bit storage register, forced to high impedance when OE is high. |
| 3 | QD | output | Parallel 3-state output bit D of the 8-bit storage register, forced to high impedance when OE is high. |
| 4 | QE | output | Parallel 3-state output bit E of the 8-bit storage register, forced to high impedance when OE is high. |
| 5 | QF | output | Parallel 3-state output bit F of the 8-bit storage register, forced to high impedance when OE is high. |
| 6 | QG | output | Parallel 3-state output bit G of the 8-bit storage register, forced to high impedance when OE is high. |
| 7 | QH | output | Parallel 3-state output bit H of the 8-bit storage register, forced to high impedance when OE is high. |
| 8 | GND | power_in | Ground pin for the device. |
| 9 | QH' | output | Serial output of the shift register used for cascading; it stays active and is not placed in high impedance by OE. |
| 10 | SRCLR | input | Direct overriding clear input for the shift register. |
| 11 | SRCLK | input | Clock input for the 8-bit shift register. |
| 12 | RCLK | input | Clock input for the 8-bit storage (output) register, separate from SRCLK. |
| 13 | OE | input | Output enable; when high, all outputs except QH' are in the high-impedance state. |
| 14 | SER | input | Serial data input to the 8-bit shift register. |
| 15 | QA | output | Parallel 3-state output bit A of the 8-bit storage register, forced to high impedance when OE is high. |
| 16 | VCC | power_in | Supply voltage; recommended operating range is 2 V to 5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-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 | 5 | ||
| Input voltage | VI | -0.5 | 7 | V | 5 | ||
| Output voltage | VO | -0.5 | V | 5 | |||
| Input clamp current | IIK | -20 | mA | VI < 0 | 5 | ||
| Output clamp current | IOK | -20 | 20 | mA | VO < 0 or VO > VCC | 5 | |
| Continuous output current | IO | -25 | 25 | mA | VO = 0 to VCC | 5 | |
| Continuous current through VCC or GND | -75 | 75 | mA | 5 | |||
| Junction temperature | TJ | 150 | °C | 5 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 5 | ||
| Supply voltage | VCC | 2 | 5.5 | V | 5 | ||
| High-level input voltage | VIH | 1.5 | V | VCC = 2 V | 5 | ||
| High-level input voltage | VIH | 2.1 | V | VCC = 3 V | 5 | ||
| High-level input voltage | VIH | 3.85 | V | VCC = 5.5 V | 5 | ||
| Low-level input voltage | VIL | 0.5 | V | VCC = 2 V | 5 | ||
| Low-level input voltage | VIL | 0.9 | V | VCC = 3 V | 5 | ||
| Low-level input voltage | VIL | 1.65 | V | VCC = 5.5 V | 5 | ||
| Input voltage | VI | 0 | 5.5 | V | 5 | ||
| Output voltage | VO | 0 | V | 5 | |||
| High-level output current | IOH | -50 | µA | VCC = 2 V | 5 | ||
| High-level output current | IOH | -4 | mA | VCC = 3.3 V ± 0.3 V | 5 | ||
| High-level output current | IOH | -8 | mA | VCC = 5 V ± 0.5 V | 5 | ||
| Low-level output current | IOL | 50 | µA | VCC = 2 V | 5 | ||
| Low-level output current | IOL | 4 | mA | VCC = 3.3 V ± 0.3 V | 5 | ||
| Low-level output current | IOL | 8 | mA | VCC = 5 V ± 0.5 V | 5 | ||
| Input transition rise or fall rate | Δt/Δv | 100 | ns/V | VCC = 3.3 V ± 0.3 V | 5 | ||
| Input transition rise or fall rate | Δt/Δv | 20 | ns/V | VCC = 5 V ± 0.5 V | 5 | ||
| Operating free-air temperature | TA | -40 | 125 | °C | 5 | ||
| High-level output voltage | VOH | 2.9 | 3 | V | IOH = -50 µA, TA = 25°C, VCC = 3 V | 6 | |
| High-level output voltage | VOH | 2.9 | V | IOH = -50 µA, TA = -40°C to 85°C, VCC = 3 V | 6 | ||
| High-level output voltage | VOH | 4.4 | 4.5 | V | IOH = -50 µA, TA = 25°C, VCC = 4.5 V | 6 | |
| High-level output voltage | VOH | 4.4 | V | IOH = -50 µA, TA = -40°C to 85°C, VCC = 4.5 V | 6 | ||
| High-level output voltage | VOH | 2.58 | V | IOH = -4 mA, TA = 25°C, VCC = 3 V | 6 | ||
| High-level output voltage | VOH | 2.48 | V | IOH = -4 mA, TA = -40°C to 85°C, VCC = 3 V | 6 | ||
| High-level output voltage | VOH | 3.94 | V | IOH = -8 mA, TA = 25°C, VCC = 4.5 V | 6 | ||
| High-level output voltage | VOH | 3.8 | V | IOH = -8 mA, TA = -40°C to 85°C, VCC = 4.5 V | 6 | ||
| Low-level output voltage | VOL | 0.1 | V | IOL = 50 µA, TA = 25°C, VCC = 3 V | 6 | ||
| Low-level output voltage | VOL | 0.36 | V | IOL = 4 mA, TA = 25°C, VCC = 3 V | 6 | ||
| Low-level output voltage | VOL | 0.44 | V | IOL = 4 mA, TA = -40°C to 85°C, VCC = 3 V | 6 | ||
| Input leakage current | II | -0.1 | 0.1 | µA | VI = 5.5 V or GND, TA = 25°C, VCC = 0 V to 5.5 V | 7 | |
| Input leakage current | II | -1 | 1 | µA | VI = 5.5 V or GND, TA = -40°C to 85°C, VCC = 0 V to 5.5 V | 7 | |
| Off-state (high-impedance) output current | IOZ | -0.25 | 0.25 | µA | VI = VCC or GND, VO = VCC or GND, OE = VIH or VIL, QA-QH, TA = 25°C, VCC = 5.5 V | 7 | |
| Off-state (high-impedance) output current | IOZ | -2.5 | 2.5 | µA | VI = VCC or GND, VO = VCC or GND, OE = VIH or VIL, QA-QH, TA = -40°C to 85°C, VCC = 5.5 V | 7 | |
| Supply current | ICC | 40 | µA | VI = VCC or GND, IO = 0, TA = -40°C to 85°C, VCC = 5.5 V | 7 | ||
| Input capacitance | Ci | 3 | 10 | pF | VI = VCC or GND, TA = 25°C, VCC = 5 V | 7 | |
| Junction-to-ambient thermal resistance | RθJA | 93.8 | °C/W | D (SOIC) package | 6 | ||
| Junction-to-case (top) thermal resistance | RθJC(top) | 54.7 | °C/W | D (SOIC) package | 6 | ||
| Junction-to-board thermal resistance | RθJB | 50.9 | °C/W | D (SOIC) package | 6 |
CAD (KiCad official)
- Symbol:
SN74AHC595DR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
sn74ahc595dr-etched.step/sn74ahc595dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74ahc595dr.step/sn74ahc595dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (37 pp, sha256
36153634a69a8395, 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).