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參數(shù)資料
| 型號(hào)： | IN74LV244DW |
| 廠商： | INTEGRAL JOINT STOCK COMPANY |
| 英文描述： | Octal Registered Transceivers With 3-State Outputs 24-SO -40 to 85 |
| 中文描述： | 八路緩沖器/線路驅(qū)動(dòng)器三態(tài) |
| 文件頁(yè)數(shù)： | 1/4頁(yè) |
| 文件大?。?/td> | 157K |
| 代理商： | IN74LV244DW |
IN74LV244
1
O
CTAL
B
UFFER
/L
INE
D
RIVER
3-S
TATE
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
by the output enable inputs
OE
1
and
OE
2
. A HIGH on
nOE
causes the outputs to assume a high impedance OFF-state.
The IN74LV244 is identical to the IN74LV240 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
μ
A, 0.1
μ
А
at
Т
= 25
°
С
Output Current: 8 mA at V
CC
= 3.0 V
High Noise Immunity Characteristic of CMOS Devices
N SUFFIX
PLASTIC DIP
DW SUFFIX
SO
1
20
1
20
ORDERING INFORMATION
IN74LV244N
Plastic DIP
IN74LV244DW
IZ74LV244
T
A
= -40
°
to 125
°
C for all
packages
SOIC
chip
FUNCTION TABLE
Input
nOE
nAn
L
L
H
H= high level
L = low level
X = don’t care
Z = high impedance
OUTPUT
nYn
L
H
X
L
H
Z
LOGIC DIAGRAM
2
11
6
15
4
13
8
17
1
19
1A0
1Y0
2A0
2Y0
1A2
1Y2
2A0
2Y0
1A1
1Y1
2A1
2Y1
1A3
1Y3
2A1
2Y1
1OE
2OE
18
9
14
5
16
7
12
3
DATA
INPUTS
NONINVERTING
OUTPUTS
OUTPUT
ENABLES
PIN 20=V
CC
PIN 10 = GND
PIN ASSIGNMENT
1
2
3
5
4
6
7
8
9
10
V
CC
2OE
20
18
17
16
15
14
19
11
12
13
GND
1OE
1A
0
2Y
3
1A
1
2Y
2
1A
2
2Y
1
1A
3
2Y
0
1Y
0
2A
3
1Y
1
2A
2
1Y
2
2A
1
1Y
3
2A
0
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