INTEGRATED CIRCUITS 74ABT244 Octal buffer/line driver (3-State) Product specification 1998 Jan 16 Supersedes data of 1995 Sep 06 IC23 Data Handbook Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 FEATURES DESCRIPTION Octal bus interface The 74ABT244 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high 3-State buffers output drive. Output capability: +64mA/32mA The 74ABT244 device is an octal buffer that is ideal for driving bus Latch-up protection exceeds 500mA per Jedec Std 17 lines. The device features two Output Enables (1OE, 2OE), each controlling four of the 3-State outputs. ESD protection exceeds 2000 V per MIL STD 883 Method 3015 and 200 V per Machine Model Power-up 3-State Live insertion capacity Inputs are disabled during 3-State mode QUICK REFERENCE DATA CONDITIONS SYMBOL PARAMETER TYPICAL UNIT T = 25C GND = 0V amb t Propagation delay PLH C = 50pF V = 5V 2.9 ns L CC t An to Yn PHL C Input capacitance V = 0V or V 4 pF IN I CC C Output capacitance Outputs disabled V = 0V or V 7 pF OUT O CC I Total supply current Outputs disabled V =5.5V 50 A CCZ CC ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER 20-Pin Plastic DIP 40C to +85C 74ABT244 N 74ABT244 N SOT146-1 20-Pin plastic SO 40C to +85C 74ABT244 D 74ABT244 D SOT163-1 20-Pin Plastic SSOP Type II 40C to +85C 74ABT244 DB 74ABT244 DB SOT339-1 20-Pin Plastic TSSOP Type I 40C to +85C 74ABT244 PW 74ABT244PW DH SOT360-1 PIN CONFIGURATION PIN DESCRIPTION PIN NUMBER SYMBOL NAME AND FUNCTION 2, 4, 6, 8 1A0 1A3 Data inputs 20 1OE 1 V CC 11, 13, 15, 17 2A0 2A3 Data inputs 1A0 2 19 2OE 18, 16, 14, 12 1Y0 1Y3 Data outputs 2Y0 3 18 1Y0 9, 7, 5, 3 2Y0 2Y3 Data outputs 1A1 4 17 2A0 2Y1 5 16 1Y1 1, 19 1OE, 2OE Output enables 1A2 6 15 2A1 10 GND Ground (0V) 2Y2 7 14 1Y2 20 V Positive supply voltage CC 1A3 8 13 2A2 2Y3 9 12 1Y3 GND 10 11 2A3 SA00148 2 1998 Jan 16 8531444 18867