LV244 Datasheet, PDF (1/4 Pages) System Logic Semiconductor – OCTAL BUFFER/LINE DRIVE; 3-STATE

TECHNICAL DATA
OCTAL BUFFER/LINE DRIVE; 3-STATE
SL74LV244
The SL74LV244 is a low-voltage Si-gate CMOS device and is pin and
function compatible with SL74HC/HCT244.
The SL74LV244 is an octal non-inverting buffer/line driver with 3-
state 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 SL74LV244 is identical to the SL74LV240 but has non-inverting
outputs.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 1.2 to 3.6 V
• Low Input Current: 1.0 µA, 0.1 µÀ at Ò = 25 °Ñ
• Output Current: 8 mA at V_CC = 3.0 V
• High Noise Immunity Characteristic of CMOS Devices
N SUFFIX
PLASTIC DIP
20
1
20
1
DW SUFFIX
SO
ORDERING INFORMATION
SL74LV244N
SL74LV244DW
Plastic DIP
SOIC
T_A = -40° to 125° C for all packages
LOGIC DIAGRAM
2
1A₀
4
1A₁
1A₂ ⁶
DATA
INPUTS
1A₃ ⁸
2A₀ ¹¹
2A₁ ¹³
2A₀ ¹⁵
18 _1Y0
16 _1Y1
14 _1Y2
12 _1Y3
NONINVERTING
9 _2Y0
OUTPUTS
7 _2Y1
5 _2Y0
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 1Y ₀
17 2A ₃
16 1Y ₁
15 2A₂
14 1Y ₂
13 2A ₁
12 1Y ₃
11 2A ₀
2A₁ ¹⁷
3 2Y₁
OUTPUT
ENABLES
1
1OE
19
2OE
PIN 20=V_CC
PIN 10 = GND
FUNCTION TABLE
Input
nOE
nAn
L
L
L
H
H
X
H= high level
L = low level
X = don’t care
Z = high impedance
Output
nYn
L
H
Z
SLS ^{System Logic}
Semiconductor
1