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SN74ABT651DWR

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Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-24-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN74ABT651DWR

Texas Instruments · Buffers, Drivers, Receivers, Transceivers · SOIC-24-300mil

SN74ABT651DWR from Texas Instruments, in a SOIC-24-300mil. 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 CLKAB input Clock input for the A-to-B storage flip-flops; data is stored on low-to-high transitions regardless of the select or enable controls, with a minimum CLK pulse duration of 4 ns.
2 SAB input Select control for the A-to-B path: a low level selects real-time data and a high level selects stored data.
3 OEAB input Output enable for the A-to-B data path; to keep outputs high-impedance during power up or power down, tie OEAB to GND through a pulldown resistor sized by the driver's current-sourcing capability.
4 A1 bidirectional Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
5 A2 bidirectional Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
6 A3 bidirectional Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
7 A4 bidirectional Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
8 A5 bidirectional Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
9 A6 bidirectional Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
10 A7 bidirectional Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
11 A8 bidirectional Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
12 GND power_in Ground reference; all unused control and I/O pins must be held at VCC or GND for proper device operation.
13 B8 bidirectional Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
14 B7 bidirectional Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
15 B6 bidirectional Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
16 B5 bidirectional Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
17 B4 bidirectional Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
18 B3 bidirectional Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
19 B2 bidirectional Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
20 B1 bidirectional Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL.
21 OEBA input Output enable for the B-to-A data path; to keep outputs high-impedance during power up or power down, tie OEBA to VCC through a pullup resistor sized by the driver's current-sinking capability.
22 SBA input Select control for the B-to-A path: a low level selects real-time data and a high level selects stored data.
23 CLKBA input Clock input for the B-to-A storage flip-flops; data is stored on low-to-high transitions regardless of the select or enable controls, with a minimum CLK pulse duration of 4 ns.
24 VCC power_in Supply voltage, recommended 4.5 V to 5.5 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-24-300mil
Category Logic
Pins 24

CAD (KiCad official)

  • Symbol: SN74ABT651DWR
  • Footprint: Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm
  • 3D model: SOIC-24-300mil (KiCad packages3D, STEP)
  • 3D model files: sn74abt651dwr-etched.step / sn74abt651dwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74abt651dwr.step / sn74abt651dwr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (14 pp, sha256 4f2592736ebf6087, retrieved 2026-10-08, tier: lcsc)
  • 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