M74HC240
M74HC240 is OCTAL BUS BUFFER manufactured by STMicroelectronics.
DESCRIPTION b The M74HC240 is an advanced high-speed O CMOS OCTAL BUS BUFFER (3-STATE)
- fabricated with silicon gate C2MOS technology. t(s) G control input governs four BUS BUFFERs.
TSSOP
ORDER CODES
PACKAGE
TUBE
DIP SOP TSSOP
M74HC240B1R M74HC240M1R
T&R
M74HC240RM13TR M74HC240TTR
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
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
SYMBOL NAME AND FUNCTION
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
2G
Output Enable Input
GND Ground (0V)
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 H L Z bs ABSOLUTE MAXIMUM RATINGS
- O...
