SN74LXC8T245PWR 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. Operating range 1.1 V ≤ VCCA ≤ 5.5 V. Sets logic reference for A-port I/Os and control inputs (DIR, OE).
2	DIR	input	Direction control for all channels, referenced to VCCA. DIR=H enables A→B transmission; DIR=L enables B→A transmission. Has integrated static pull-down.
3	A1	bidirectional	Channel 1 A-side I/O, referenced to VCCA. Schmitt-trigger input with integrated dynamic pull-down.
4	A2	bidirectional	Channel 2 A-side I/O, referenced to VCCA.
5	A3	bidirectional	Channel 3 A-side I/O, referenced to VCCA.
6	A4	bidirectional	Channel 4 A-side I/O, referenced to VCCA.
7	A5	bidirectional	Channel 5 A-side I/O, referenced to VCCA.
8	A6	bidirectional	Channel 6 A-side I/O, referenced to VCCA.
9	A7	bidirectional	Channel 7 A-side I/O, referenced to VCCA.
10	A8	bidirectional	Channel 8 A-side I/O, referenced to VCCA.
11	GND	power_in	Device ground.
12	GND	power_in	Device ground.
13	GND	power_in	Device ground.
14	B8	bidirectional	Channel 8 B-side I/O, referenced to VCCB.
15	B7	bidirectional	Channel 7 B-side I/O, referenced to VCCB.
16	B6	bidirectional	Channel 6 B-side I/O, referenced to VCCB.
17	B5	bidirectional	Channel 5 B-side I/O, referenced to VCCB.
18	B4	bidirectional	Channel 4 B-side I/O, referenced to VCCB.
19	B3	bidirectional	Channel 3 B-side I/O, referenced to VCCB.
20	B2	bidirectional	Channel 2 B-side I/O, referenced to VCCB.
21	B1	bidirectional	Channel 1 B-side I/O, referenced to VCCB.
22	~OE	input	Output Enable, active low, referenced to VCCA. Tie to GND to enable outputs; tie to VCCA to place all I/Os in high-impedance. Has integrated static pull-down.
23	VCCB	power_in	B-port supply voltage. Operating range 1.1 V ≤ VCCB ≤ 5.5 V. Sets logic reference for B-port I/Os.
24	VCCB	power_in	B-port supply voltage. Operating range 1.1 V ≤ VCCB ≤ 5.5 V. Sets logic reference for B-port I/Os.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SN74LXC8T245PWR
SN74LXC8T245PWRDGS
SN74LXC8T245PWRDGSR
SN74LXC8T245PWRRHL
SN74LXC8T245PWRRHLR
SN74LXC8T245PWRRJW
SN74LXC8T245PWRRJWR

CAD (KiCad official)

Symbol: SN74LXC8T245PWR
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 (39 pp, sha256 814fce99965a6d69, 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