SN74AVC8T245PWR from Texas Instruments, in a TSSOP-24. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	VCCA	power_in	A-port supply voltage. 1.2 V ≤ VCCA ≤ 3.6 V. Also supplies the DIR and OE control inputs.
2	DIR	input	Direction-control signal. High selects A→B, low selects B→A. Referenced to VCCA.
3	A1	bidirectional	Input/output A1. Referenced to VCCA (1.2 V to 3.6 V).
4	A2	bidirectional	Input/output A2. Referenced to VCCA (1.2 V to 3.6 V).
5	A3	bidirectional	Input/output A3. Referenced to VCCA (1.2 V to 3.6 V).
6	A4	bidirectional	Input/output A4. Referenced to VCCA (1.2 V to 3.6 V).
7	A5	bidirectional	Input/output A5. Referenced to VCCA (1.2 V to 3.6 V).
8	A6	bidirectional	Input/output A6. Referenced to VCCA (1.2 V to 3.6 V).
9	A7	bidirectional	Input/output A7. Referenced to VCCA (1.2 V to 3.6 V).
10	A8	bidirectional	Input/output A8. Referenced to VCCA (1.2 V to 3.6 V).
11	GND	power_in	Ground reference.
12	GND	power_in	Ground reference.
13	GND	power_in	Ground reference.
14	B8	bidirectional	Input/output B8. Referenced to VCCB (1.2 V to 3.6 V).
15	B7	bidirectional	Input/output B7. Referenced to VCCB (1.2 V to 3.6 V).
16	B6	bidirectional	Input/output B6. Referenced to VCCB (1.2 V to 3.6 V).
17	B5	bidirectional	Input/output B5. Referenced to VCCB (1.2 V to 3.6 V).
18	B4	bidirectional	Input/output B4. Referenced to VCCB (1.2 V to 3.6 V).
19	B3	bidirectional	Input/output B3. Referenced to VCCB (1.2 V to 3.6 V).
20	B2	bidirectional	Input/output B2. Referenced to VCCB (1.2 V to 3.6 V).
21	B1	bidirectional	Input/output B1. Referenced to VCCB (1.2 V to 3.6 V).
22	OE	input	3-state output-mode enable (active low). Pull OE high to place all outputs in the high-impedance state. Referenced to VCCA.
23	VCCB	power_in	B-port supply voltage. 1.2 V ≤ VCCB ≤ 3.6 V.
24	VCCB	power_in	B-port supply voltage. 1.2 V ≤ VCCB ≤ 3.6 V.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	TSSOP-24
Category	Logic
Pins	24

Ordering variants

Same part, different packaging or reel option.

SN74AVC8T245PWR
SN74AVC8T245PWRDGV
SN74AVC8T245PWRRHL

CAD (KiCad official)

Symbol: SN74AVC8T245PWR
Footprint: Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm
3D model: TSSOP-24 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (37 pp, sha256 7b3fa8f3d8a970b2, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF