Circuitos Integrados

74243
Quad bus transceiver; 3-state
PDF datasheet
       
OE A 1  • 14 Vcc
NC 2 13 OEB
A0 3 12 NC
A1 4 11 B0
A2 5 10 B1
A3 6 9 B2
GND 7 8 B3
       
Pin Symbol Description
1 OE A output enable (active low)
2 NC no connection
3 A0 data input or output
4 A1 data input or output
5 A2 data input or output
6 A3 data input or output
7 GND ground
8 B3 data output or input
9 B2 data output or input
10 B1 data output or input
11 B0 data output or input
12 NC no connection
13 OEB output enable (active high)
14 Vcc supply voltage


Specifications
(typical values under recommended operating conditions, unless specified)
Parameter Value Unit
Propagation delay, An to Bn; Bn to An 6 (74HC) ns

Notes
  • When OE A and OEB are low, An are inputs.
  • When OE A and OEB are high, Bn are inputs.
  • Otherwise, An and Bn are in a high-impedance off state.

Note
Data is maintained by an independent source and accuracy is not guaranteed. Check with the manufacturer's datasheet for up-to-date information.

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