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74vhc245ft

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TOSHIBA 74VHC245FT BE Buffer/Driver/Transceiver, TSSOP-20. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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74VHC245FT

TOSHIBA 74VHC245FT BE · Buffer/Driver/Transceiver · TSSOP-20

74VHC245FT from TOSHIBA 74VHC245FT BE, 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 = L, data flows B -> A; when DIR = H, data flows A -> B. CMOS input, VIH = VCC x 0.7 min at VCC = 3.0-5.5 V.
2 A1 bidirectional Bus A channel 1 I/O. Acts as input when DIR = H (A -> B) and as output when DIR = L (B -> A). Placed into high-impedance state when /G = H.
3 A2 bidirectional Bus A channel 2 I/O. Acts as input when DIR = H and as output when DIR = L. High-impedance when /G = H.
4 A3 bidirectional Bus A channel 3 I/O. Acts as input when DIR = H and as output when DIR = L. High-impedance when /G = H.
5 A4 bidirectional Bus A channel 4 I/O. Acts as input when DIR = H and as output when DIR = L. High-impedance when /G = H.
6 A5 bidirectional Bus A channel 5 I/O. Acts as input when DIR = H and as output when DIR = L. High-impedance when /G = H.
7 A6 bidirectional Bus A channel 6 I/O. Acts as input when DIR = H and as output when DIR = L. High-impedance when /G = H.
8 A7 bidirectional Bus A channel 7 I/O. Acts as input when DIR = H and as output when DIR = L. High-impedance when /G = H.
9 A8 bidirectional Bus A channel 8 I/O. Acts as input when DIR = H and as output when DIR = L. High-impedance when /G = H.
10 GND power_in Ground reference (0 V). Connect to system ground with a local decoupling capacitor between VCC and GND close to the package.
11 B8 bidirectional Bus B channel 8 I/O. Acts as input when DIR = L (B -> A) and as output when DIR = H (A -> B). High-impedance when /G = H.
12 B7 bidirectional Bus B channel 7 I/O. Acts as input when DIR = L and as output when DIR = H. High-impedance when /G = H.
13 B6 bidirectional Bus B channel 6 I/O. Acts as input when DIR = L and as output when DIR = H. High-impedance when /G = H.
14 B5 bidirectional Bus B channel 5 I/O. Acts as input when DIR = L and as output when DIR = H. High-impedance when /G = H.
15 B4 bidirectional Bus B channel 4 I/O. Acts as input when DIR = L and as output when DIR = H. High-impedance when /G = H.
16 B3 bidirectional Bus B channel 3 I/O. Acts as input when DIR = L and as output when DIR = H. High-impedance when /G = H.
17 B2 bidirectional Bus B channel 2 I/O. Acts as input when DIR = L and as output when DIR = H. High-impedance when /G = H.
18 B1 bidirectional Bus B channel 1 I/O. Acts as input when DIR = L and as output when DIR = H. High-impedance when /G = H.
19 ~G input Active-low output enable. When /G = L the transceiver is enabled and data is passed in the direction set by DIR; when /G = H both A and B busses go to high-impedance (Z).
20 VCC power_in Positive supply voltage. Operating range 2.0 V to 5.5 V (absolute max 7.0 V). Decouple with a 0.1 uF ceramic capacitor close to the package between VCC and GND.

Key specifications

Parameter Value
Manufacturer TOSHIBA 74VHC245FT BE
Package TSSOP-20
Category Logic
Pins 20

Ordering variants

  • 74VHC245FT

CAD (KiCad official)

  • Symbol: 74VHC245FT
  • 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: TOSHIBA 74VHC245FT BE datasheet (None pp, sha256 666229d4098c7197, retrieved 2026-08-17, tier: lcsc)
  • 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

Symbol & Footprint

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