74ABT2953

Philips Semiconductors Product specification Octal registered transceiver, inverting (3-State) 74ABT2953 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 74ABT2953 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive. The 74ABT2953 device is an 8-bit registered inverting 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. Live insertion/extraction permitted Power-up 3-State Power-up reset 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 or VCC Outputs disabled; VCC =5.5V TYPICAL 5.0 4 7 500 UNIT ns pF pF nA ORDERING INFORMATION PACKAGES 24-Pin Plastic DIP 24-Pin plastic SO 24-Pin Plastic S...