參數(shù)資料
型號: 74FCT162823
廠商: Texas Instruments, Inc.
英文描述: 18-Bit Registers
中文描述: 18位寄存器
文件頁數(shù): 1/8頁
文件大?。?/td> 69K
代理商: 74FCT162823
18-Bit Registers
CY74FCT16823T
CY74FCT162823T
SCCS062 - August 1994 - Revised March 2000
Data sheet acquired from Cypress Semiconductor Corporation.
Data sheet modified to remove devices not offered.
Copyright
2000, Texas Instruments Incorporated
Features
FCT-E speed at 4.4 ns
Power-off disable outputs permits live insertion
Edge-rate control circuitry for significantly improved
noise characteristics
Typical output skew < 250 ps
ESD > 2000V
TSSOP (19.6-mil pitch) and SSOP (25-mil pitch)
packages
Industrial temperature range of
40C to +85C
V
CC
= 5V
±
10%
CY74FCT16823T Features:
64 mA sink current, 32 mA source current
Typical V
OLP
(ground bounce) <1.0V at V
CC
= 5V,
T
A
= 25C
CY74FCT162823T Features:
Balanced 24 mA output drivers
Reduced system switching noise
Typical V
OLP
(ground bounce) <0.6V at V
CC
= 5V,
T
A
= 25C
Functional Description
The CY74FCT16823T and the CY74FCT162823T 18-bit bus
interface registers are designed for use in high-speed,
low-power systems needing wide registers and parity. 18-bit
operation is achieved by connecting the control lines of the two
9-bit
registers.
Flow-through
packaging aids in simplifying board layout. The outputs are
designed with a power-off disable feature to allow live insertion
of boards.
The
CY74FCT16823T
is
high-capacitance loads and low-impedance backplanes.
The CY74FCT162823T has 24-mA balanced output drivers
with current limiting resistors in the outputs. This reduces the
need for external terminating resistors and provides for
minimal undershoot and reduced ground bounce. The
CY74FCT162823T is ideal for driving transmission lines.
pinout
and
small
shrink
ideally
suited
for
driving
Logic Block Diagrams
C
D
Pin Configuration
SSOP/TSSOP
Top View
R
1
2
3
4
5
6
7
8
9
10
11
12
33
32
31
30
29
36
35
34
1
CLR
1
OE
1
Q
1
GND
13
14
15
16
17
18
19
20
21
22
23
24
25
45
44
43
42
41
37
38
39
40
48
47
46
1
CLR
1
D
1
1
OE
1
Q
2
1
Q
3
V
CC
1
Q
4
1
Q
5
1
Q
6
GND
1
Q
7
FCT16823-1
1
CLK
1
CLKEN
1
Q
1
TO 8 OTHER CHANNELS
GND
1
D
2
1
D
3
1
D
1
1
D
4
1
D
5
1
D
6
1
CLK
GND
1
D
7
1
D
9
2
D
1
2
D
2
V
CC
GND
2
D
4
GND
2
D
5
2
D
6
V
CC
2
D
7
2
D
8
2
CLK
1
CLKEN
26
27
28
49
50
51
52
53
54
55
56
1
D
8
2
D
3
2
D
9
2
CLKEN
C
D
R
2
CLR
2
D
2
2
OE
2
CLK
2
CLKEN
2
Q
1
TO 8 OTHER CHANNELS
1
Q
8
1
Q
9
2
Q
1
2
Q
2
2
Q
3
GND
2
Q
4
2
Q
5
2
Q
6
V
CC
2
Q
7
2
Q
8
GND
2
Q
9
2
OE
2
CLR
FCT16823-2
FCT16823-3
相關PDF資料
PDF描述
74FCT162823ATPACT 18-Bit Registers
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