IN74LV244 Datasheet, PDF (1/4 Pages) Integral Corp. – OCTAL BUFFER/LINE DRIVER 3-STATE

IN74LV244
OCTAL BUFFER/LINE DRIVER 3-STATE
The IN74LV244 is a low-voltage Si-gate CMOS device and is pin and function compatible with
IN74HC/HCT244.
The IN74LV244 is an octal non-inverting buffer/line
driver with 3-state outputs. The 3-state outputs are controlled
N SUFFIX
by the output enable inputs 1OE and 2OE . A HIGH on nOE
PLASTIC DIP
causes the outputs to assume a high impedance OFF-state.
The IN74LV244 is identical to the IN74LV240 but has non- 20
inverting outputs.
1
DW SUFFIX
• Outputs Directly Interface to CMOS, NMOS, and TTL
20
SO
1
• Operating Voltage Range: 1.2 to 3.6 V
• Low Input Current: 1.0 µA, 0.1 µА at Т = 25 °С
• Output Current: 8 mA at V_CC = 3.0 V
ORDERING INFORMATION
• High Noise Immunity Characteristic of CMOS Devices
IN74LV244N Plastic DIP
IN74LV244DW
SOIC
IZ74LV244
chip
T_A = -40° to 125° C for all
packages
LOGIC DIAGRAM
2
1A0
4
1A1
1A2 ⁶
DATA
INPUTS
1A3 ⁸
11
2A0
2A1 ¹³
2A0 ¹⁵
2A1 ¹⁷
OUTPUT
ENABLES
1
1OE
19
2OE
18 _1Y0
16 _1Y1
14 _1Y2
12 _1Y3
NON INVERTING
9 _2Y0
OUTPUTS
7 _2Y1
5 _2Y0
3 _2Y1
PIN ASSIGNMENT
1OE 1
1A₀ 2
2Y₃ 3
1A₁ 4
2Y₂ 5
1A₂ 6
2Y₁ 7
1A₃ 8
2Y₀ 9
GND 10
20 V_CC
19 2OE
18 1Y₀
17 2A₃
16 1Y₁
15 2A₂
14 1Y₂
13 2A₁
12 1Y₃
11 2A₀
PIN 20=V_CC
PIN 10 = GND
FUNCTION TABLE
Input
OUTPUT
nOE
nAn
nYn
L
L
L
L
H
H
H
X
Z
H= high level
L = low level
X = don’t care
Z = high impedance
1