Product Summary

The SN74LS645N is an octal bus transceiver designed for asynchronous two-way communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus depending upon the level at the derection control input. The enable input can be used to disable the device so the buses are effectively isolated.

Parametrics

SN74LS645N absolute maximum ratings: (1)Supply voltage, VCC: 7V; (2)Input voltage: 7V; (3)Operating free-air temperature range: 0℃ to +70℃; (4)Storage temperature range: -65 to +150℃.

Features

SN74LS645N features: (1)SN74LS64X-1 versions rated at IOL of 48mA; (2)Bi-directional bus transceivers in High-density 2--pin packages; (3)Hysteresis at bus inputs improves noise margins; (4)Choice of true or inverting logic; (5)Choice of 3-state or open-collector outputs.

Diagrams

SN74LS645N block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
SN74LS645N
SN74LS645N
Texas Instruments
Bus Transceivers Octal bus Transceiver
Data Sheet
0-1: $1.21
1-25: $1.05
25-100: $0.95
100-250: $0.84
SN74LS645NE4
SN74LS645NE4

IC BUS TRANSCEIVER 8BIT 20DIP
Data Sheet
0-1000: $0.61
SN74LS645NSRG4
SN74LS645NSRG4
Texas Instruments
Bus Transceivers Octal bus transceivr
Data Sheet
0-1430: $0.59
1430-2000: $0.56
2000-5000: $0.54
5000-10000: $0.52
SN74LS645NSR
SN74LS645NSR
Texas Instruments
Bus Transceivers Octal bus Transceiver
Data Sheet
0-1430: $0.59
1430-2000: $0.56
2000-5000: $0.54
5000-10000: $0.52
SN74LS645NSRE4
SN74LS645NSRE4
Texas Instruments
Bus Transceivers Octal bus Transceiver
Data Sheet
0-1430: $0.59
1430-2000: $0.56
2000-5000: $0.54
5000-10000: $0.52