DESCRIPTION
o O G control input governs four BUS BUFFERs. DIP SOP TSSOP ORDER CODES PACKAGE TUBE T&R DIP SOP TSSOP M74HCT244B1R M74HCT244M1R M74HCT244RM13TR M74HCT244TTR All inputs are equipped with protection circuits against static discharge and transient excess voltage. Obsolete Product(s) - PIN CONNECTION AND IEC LOGIC SYMBOLS August 2001 1/9 M74HCT244 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No SYMBOL NAME AND FUNCTION 1 1G Output Enable Input 2, 4, 6, 8 1A1 to 1A4 Data Inputs 9, 7, 5, 3 2Y1 to 2Y4 Data Outputs 11, 13, 15, 2A1 to 2A4 Data Inputs 17 18, 16, 14, 1Y1 to 1Y4 Data Outputs 12 19 2G Output Enable Input 10 GND Ground (0V) 20 VCC Positive Supply Voltage t(s) TRUTH TABLE roduc G P L L te H le X : Don’t Care o Z : High Impedance INPUTS An L H X OUTPUT Yn L H Z bs ABSOLUTE MAXIMUM RATINGS
- O Symbol Parameter Value Unit t(s) VCC Supply Voltage -0.5 to +7 V VI DC Input Voltage -0.5 to VCC + 0.5 V uc VO DC Output Voltage -0.5 to VCC + 0.5 V d IIK DC Input Diode C...
STMicroelectronics
