74ABT2952

INTEGRATED CIRCUITS 74ABT2952 Octal registered transceiver (3-State) Product specification Supersedes data of 1995 Jun 15 IC23 Data Handbook 1998 Feb 11 Philips Semiconductors Philips Semiconductors Product specification Octal registered transceiver (3-State) 74ABT2952 FEATURES 8-bit registered transceiver Independent registers for A and B buses Output capability: +64mA/–32mA Latch-up protection exceeds 500mA per JEDEC Std 17 ESD protection exceeds 2000V per MIL STD 883 Method 3015 and 200V per Machine Model DESCRIPTION The 74ABT2952 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive. The 74ABT2952 device is an 8-bit registered transceiver. Two 8-bit back-to-back registers store data flowing in both directions between two bidirectional buses. Data applied to the inputs is entered and stored on the rising edge of the Clock (CPXX) provided that the Clock Enable (CEXX) is Low. The data is then present at the 3-State output buffers, but is only accessible when the Output Enable (OEXX) is Low. Data flow from A inputs to B outputs is the same as for B inputs to A outputs. Power-up 3-State Power-up reset Live insertion/extraction permitted QUICK REFERENCE DATA SYMBOL tPLH tPHL CIN CI/O ICCZ PARAMETER Propagation delay CPBA to An or CPAB to Bn Input capacitance I/O capacitance Total supply current CONDITIONS Tamb = 25°C; GND = 0V CL = 50pF; VCC = 5V VI = 0V or VCC Outputs disabled; VO = 0V ...