器件名称: MC74AC245MELG
功能描述: Octal Bidirectional Transceiver with 3State Inputs/Outputs
文件大小: 112.45KB 共10页
简 介:MC74AC245, MC74ACT245 Octal Bidirectional Transceiver with 3State Inputs/Outputs
The MC74AC245/74ACT245 contains eight noninverting bidirectional buffers with 3state outputs and is intended for busoriented applications. Current sinking capability is 24 mA at both the A and B ports. The Transmit/Receive (T/R) input determines the direction of data flow through the bidirectional transceiver. Transmit (activeHIGH) enables data from A ports to B ports; Receive (activeLOW) enables data from B ports to A ports. The Output Enable input, when HIGH, disables both A and B ports by placing them in a High Z condition.
Features http://onsemi.com
PDIP20 N SUFFIX CASE 738 1
Noninverting Buffers Bidirectional Data Path A and B Outputs Source/Sink 24 mA ′ACT245 has TTL Compatible Inputs PbFree Packages are Available
SOIC20W DW SUFFIX CASE 751D 1
PIN ASSIGNMENT
PIN OE T/R A0A7 B0B7 FUNCTION Output Enable Input Transmit/Receive Input Side A 3State Inputs or 3State Outputs Side B 3State Inputs or 3State Outputs 1 Outputs 1
TSSOP20 DT SUFFIX CASE 948E
TRUTH TABLES
Inputs OE L L H T/R L H X
SOEIAJ20 M SUFFIX CASE 967
ORDERING INFORMATION
Bus B Data to Bus A Bus A Data to Bus B High Z State
See detailed ordering and shipping information in the package dimensions section on page 6 of this data sheet.
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial
DEVICE MARKING INFORMATION
See general marking information in the device marking section on page 7 of this data sheet.
VCC 20……