参数资料
型号: 935178870118
厂商: NXP SEMICONDUCTORS
元件分类: 总线收发器
英文描述: ABT SERIES, OCTAL 1-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24
封装: 4.40 MM, PLASTIC, MO-153, SOT-355-1, TSSOP1-24
文件页数: 8/13页
文件大小: 123K
代理商: 935178870118
Philips Semiconductors
Product data
74ABT648
Octal bus transceiver/register, inverting (3-State)
2002 Dec 13
4
FUNCTION TABLE
INPUTS
DATA I/O
OPERATING MODE
OE
DIR
CPAB
CPBA
SAB
SBA
An
Bn
X
X
Input
Unspecified
output*
Store A, B unspecified
X
X
Unspecified
output*
Input
Store B, A unspecified
H
X
H or L
H or L
X
Input
Store A and B data
Isolation, hold storage
L
X
H or L
X
L
H
Output
Input
Real time B data to A bus
Stored B data to A bus
L
H
X
H or L
X
L
H
X
Input
Output
Real time A data to B bus
Stored A data to B bus
H = HIGH voltage level
L
= LOW voltage level
X = Don’t care
↑ = LOW-to-HIGH clock transition
*
The data output function may be enabled or disabled by various signals at the OE input. Data input functions are always enabled, i.e.,
data at the bus pins will be stored on every LOW-to-HIGH transition of the clock.
LOGIC DIAGRAM
1D
C1
Q
19
18
17
16
15
14
13
B1
B2
B3
B4
B5
B6
B7
A1
A2
A3
A4
A5
A6
A7
DETAIL A X 7
OE
DIR
CPBA
SBA
CPAB
SAB
20
B0
1D
C1
Q
4
A0
1of 8 Channels
SA00081
5
6
7
8
9
10
11
2
1
22
23
3
21
相关PDF资料
PDF描述
935178870112 ABT SERIES, OCTAL 1-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24
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