DESCRIPTION
b t(s) G control input governs four BUS BUFFERs. DIP SOP TSSOP ORDER CODES PACKAGE TUBE DIP SOP TSSOP M74HC244B1R M74HC244M1R T&R M74HC244RM13TR M74HC244TTR This device is designed to be used with 3 state memory address drivers, etc. All inputs are equipped with protection circuits against static discharge and transient excess voltage. Obsolete Produc PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/10 M74HC244 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...
STMicroelectronics
