參數(shù)資料
型號: 74ABTH16652
廠商: NXP Semiconductors N.V.
英文描述: 16-bit transceiver/register, non-inverting(3-State)(16位總線收發(fā)器/寄存器,(同相,三態(tài)))
中文描述: 16位收發(fā)器/寄存器,非反相(3態(tài))(16位總線收發(fā)器/寄存器,(同相,三態(tài)))
文件頁數(shù): 4/12頁
文件大?。?/td> 96K
代理商: 74ABTH16652
Philips Semiconductors
Product specification
74ABT16652
74ABTH16652
16-bit transceiver/register, non-inverting (3-State)
1998 Feb 27
4
LOGIC DIAGRAM
1D
C1
Q
DETAIL A X 7
nB0
1D
C1
Q
nA0
1of 8 Channels
nA7
nA6
nA5
nA4
nA3
nA2
nA1
nB1
nB2
nB3
nB4
nB5
nB6
nB7
nOEBA
nOEAB
nCPBA
nSBA
nCPAB
nSAB
SH00065
FUNCTION TABLE
INPUTS
DATA I/O
OPERATING MODE
nOEAB
nOEBA
nCPAB
nCPBA
nSAB
nSB
A
nAx
nBx
L
L
H
H
H or L
H or L
H or L
X
X
X
X
Input
Input
Isolation
Store A and B data
X
H
H
H
H or L
X
**
X
X
Input
Unspecified
output*
Store A, Hold B
Store A in both registers
L
L
X
L
X
X
X
**
Unspecified
output*
Input
Hold A, Store B
Store B in both registers
L
L
L
L
X
X
X
H or L
X
X
L
H
Output
Input
Real time B data to A bus
Stored B data to A bus
H
H
H
H
X
H or L
X
X
L
H
X
X
Input
Output
Real time A data to B bus
Store A data to B bus
H
L
H or L
H or L
H
H
Output
Output
Stored A data to B bus
Stored B data to A bus
H =
L
X =
=
*
High voltage level
Low voltage level
Don’t care
Low-to-High clock transition
The data output function may be enabled or disabled by various signals at the nOEBA and nOEAB inputs. 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.
If both Select controls (nSAB and nSBA) are Low, then clocks can occur simultaneously. If either Select control is High, the clocks must
be staggered in order to load both registers.
=
**
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