Pinouts
← All parts

74HC245 Octal Bus Transceiver

SN74HC245

Texas Instrumentsic logic

The 74HC245 is an octal bus transceiver with 3-state outputs for asynchronous two-way data transfer between two 8-bit buses. A DIR pin sets direction and OE isolates the buses when high.

In stock

Specifications

10
Logic Function
Octal bus transceiver with 3-state outputs
Operating Voltage
2 to 6 V
Operating Temperature Range
-40 to 85 C
Supply Current Max
80 uA
Input Current Max
1 uA
Output Current Continuous
35 mA
Output Drive Current
6 mA
Propagation Delay Typ
12 ns
Input Capacitance Max
10 pF
Package Types
SSOP-20, SOIC-20, PDIP-20, SO-20, TSSOP-20, LCCC-20

Pinout

20
PinNameFunctionsNotes
1DIR
GPIO
Direction control input
2A1
GPIO
A1 input/output
3A2
GPIO
A2 input/output
4A3
GPIO
A3 input/output
5A4
GPIO
A4 input/output
6A5
GPIO
A5 input/output
7A6
GPIO
A6 input/output
8A7
GPIO
A7 input/output
9A8
GPIO
A8 input/output
10GND
GND
Ground pin
11B8
GPIO
B8 input/output
12B7
GPIO
B7 input/output
13B6
GPIO
B6 input/output
14B5
GPIO
B5 input/output
15B4
GPIO
B4 input/output
16B3
GPIO
B3 input/output
17B2
GPIO
B2 input/output
18B1
GPIO
B1 input/output
19OE
GPIO
Output enable, active low
20VCC
POWER
Power pin

Interactive pinout

Highlight:
SN74HC245

Click a pin to copy its name · tap a tag above to spotlight a bus.