74VHC245PW from Nexperia, in a TSSOP-20. 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	DIR	input	Direction control input. When DIR=LOW, data flows from Bn to An; when DIR=HIGH, data flows from An to Bn (with OE=LOW). Schmitt-trigger input; accepts voltages higher than VCC.
2	A0	bidirectional	Data input/output, bus A bit 0. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
3	A1	bidirectional	Data input/output, bus A bit 1. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
4	A2	bidirectional	Data input/output, bus A bit 2. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
5	A3	bidirectional	Data input/output, bus A bit 3. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
6	A4	bidirectional	Data input/output, bus A bit 4. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
7	A5	bidirectional	Data input/output, bus A bit 5. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
8	A6	bidirectional	Data input/output, bus A bit 6. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
9	A7	bidirectional	Data input/output, bus A bit 7. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
10	GND	power_in	Ground reference, 0 V.
11	B7	bidirectional	Data input/output, bus B bit 7. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
12	B6	bidirectional	Data input/output, bus B bit 6. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
13	B5	bidirectional	Data input/output, bus B bit 5. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
14	B4	bidirectional	Data input/output, bus B bit 4. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
15	B3	bidirectional	Data input/output, bus B bit 3. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
16	B2	bidirectional	Data input/output, bus B bit 2. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
17	B1	bidirectional	Data input/output, bus B bit 1. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
18	B0	bidirectional	Data input/output, bus B bit 0. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
19	OE	input	Output enable input, active LOW. When HIGH, both A and B outputs are placed in high-impedance (3-state) OFF-state, effectively isolating the buses.
20	VCC	power_in	Supply voltage. Operating range 2.0 V to 5.5 V for 74VHC245; absolute max +7.0 V.

Key specifications

Parameter	Value
Manufacturer	Nexperia
Package	TSSOP-20
Category	Logic
Pins	20

Ordering variants

Same part, different packaging or reel option.

74VHC245PW
74VHC245PWD
74VHC245PWBQ

CAD (KiCad official)

Symbol: 74VHC245PW
Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
3D model: TSSOP-20 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Nexperia datasheet (16 pp, sha256 cffe9d1b2f02d399, 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