M74HCT240
DESCRIPTION
The 74HCT240 is an advanced high-speed CMOS OCTAL BUS BUFFER (3-STATE) fabricated with silicon gate C2MOS technology. G control input governs four BUS BUFFERs.
TSSOP
ORDER CODES
PACKAGE
TUBE
T&R
DIP SOP TSSOP
M74HCT240B1R M74HCT240M1R M74HCT240RM13TR
M74HCT240TTR
All inputs are equipped with protection circuits against static discharge and transient excess voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
August 2001
1/9
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
1 2, 4, 6, 8 9, 7, 5, 3 11, 13, 15,
17 18, 16, 14,
12 19 10 20
SYMBOL NAME AND FUNCTION
1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4
Output Enable Input Data Inputs Data Outputs Data Inputs
1Y1 to 1Y4 Data Outputs
2G GND VCC
Output Enable Input Ground (0V) Positive Supply Voltage
TRUTH TABLE
X : Don’t Care Z : High Impedance
INPUTS
An L H X
OUTPUT
Yn H L Z
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit...
