SN74BCT640

Pinout




Specifications

Supply voltage range, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V
Input voltage range: Control inputs (see Note 1). . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V
                                  I/O ports (see Note 1). . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.5 V to 5.5 V
Voltage range applied to any output in the disabled or power-off state, V_O. . . .  0.5 V to 5.5 V
Voltage range applied to any output in the high state, V_O. . . . . . . . . . . . . . . . . . . 0.5 V to V_CC
Input clamp current, I_IK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30 mA
Current into any output in the low state: SN54BCT640 . . . . . . . . . . . . . . . . . . . . . . . . . . .  96 mA
                                                                 SN74BCT640  . . . . . . . . . . . . . . . . . . . . . . . . . .  128 mA
Operating free-air temperature range: SN54BCT640 . . . . .  . . . . . . . . . . . . . . 55°C to 125°C
                                                             SN74BCT640 . . . . . . . . .  . . . . . . . . . . . . . .  0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C

Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and unctional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not mplied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.


Description

The  BCT640 bus transceiver is designed for asynchronous communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus depending upon the level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated.


The SN54BCT640 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74BCT640 is characterized for operation from 0°C to 70°C.