器件名称: IZ74LV240
功能描述: OCTAL BUFFER/LINE DRIVE; 3-STATE
文件大小: 44.23KB 共5页
简 介:TECHNICAL DATA
IN74LV240
OCTAL BUFFER/LINE DRIVE; 3-STATE
The IN74LV240 is a low-voltage Si-gate CMOS device and is pin and function compatible with IN74HC/HCT240. The IN74LV240 is an octal non-inverting buffer/line driver with 3state outputs. The 3-state outputs are controlled by the output enable inputs 1OE and 2OE. A HIGH on nOE causes the outputs to assume a high impedance OFF-state. The IN74LV240 is identical to the IN74LV244 but has inverting outputs. Outputs Directly Interface to CMOS, NMOS, and TTL Operating Voltage Range: 1.2 to 3.6 V Low Input Current: 1.0 A, 0.1 at = 25 ° Output Current: 8 mA at VCC = 3.0 V High Noise Immunity Characteristic of CMOS Devices
N SUFFIX PLASTIC DIP
20 1 20 1 DW SUFFIX SO
ORDERING INFORMATION IN74LV240N IN74LV240DW IZ74LV240 Plastic DIP SOIC chip
TA = -40° to 125° C for all packages
LOGIC DIAGRAM PIN ASSIGNMENT
1A0 1A1 1A 2 1A 3 2A 0 2A 1 2 4 18 16 1Y 0
1OE
1Y 1 1Y 2 1Y 3 2Y 0 2Y 1 2Y 0 2Y 1
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
V CC 2OE 1Y 0 2A 3 1Y 1 2A 2 1Y 2 2A 1 1Y 3 2A 0
1A0 2Y3 1A1 2Y2 1A2 2Y1 1A3 2Y0
6 8
14 12
DATA INPUTS
11 13
9 7 5
INVERTING OUTPUTS
2A0 15 2A1 17
GND
3
OUTPUT ENABLES
1OE 2OE
1 19
FUNCTION TABLE
Input nOE L PIN 20=VCC PIN 10 = GND L H nAn L H X Output nYn H L Z
H= high level L = low level X = don’t care Z = high impedance
INTEGRAL
1
IN74LV240
MAXIMUM RATINGS *
Symbol VCC IIK *
1 2
Parameter DC supply voltage DC Input diode current DC Output diode current DC Out……
