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參數(shù)資料
| 型號(hào)： | 74AC16862 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 20-Bit Bus Transceivers With 3-State Outputs(20位總線收發(fā)器(三態(tài)輸出)) |
| 中文描述： | 20位總線收發(fā)器與三態(tài)輸出（20位總線收發(fā)器（三態(tài)輸出）） |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大?。?/td> | 20K |
| 代理商： | 74AC16862 |
54AC16862, 54ACT16862
74AC16862, 74ACT16862
20-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCAS411 – JUNE 1990
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Copyright
1990, Texas Instruments Incorporated
1
PRODUCT PREVIEW information concerns products in
Characteristic data and other specifications are design
goals. Texas Instruments reserves the right to change or
discontinue these products without notice.
Members of Texas Instruments Widebus
Family
Packaged in Shrink Small-Outline 300-mil
Packages (SSOP) and 380-mil Fine-Pitch
Ceramic Flat Packages Using 25-mil
Center-to-Center Pin Spacings
Inputs are TTL- or CMOS-Voltage
Compatible
3-State Outputs Drive Bus Lines Directly
Flow-Through Architecture Optimizes PCB
Layout
Distributed V
CC
and GND Pin Configuration
Minimizes High-Speed Switching Noise
EPIC
(Enhanced-Performance Implanted
CMOS) 1-
μ
m Process
500-mA Typical Latch-Up Immunity at
125
°
C
description
The ’AC16862 and ’ACT16862 are inverting 20-bit
bus transceivers composed of two 10-bit
transceiver sections with separate control
signals. These devices allow data transmission
from the A bus to the B bus or from the B bus to the
A bus, depending upon the levels present at the
output-enable inputs (1GAB, 2GAB, 1GBA, and
2GBA). The control logic also allows for isolation
and latching.
The 74AC16862 and 74ACT16862 are packaged in TI’s shrink small-outline package (SSOP) with 25-mil
center-to-center pin spacings. This package provides twice the I/O pin count and functionality of a standard
small-outline package in the same printed-circuit-board area.
The ’AC16862 has CMOS-compatible input thresholds. The ’ACT16862 has TTL-compatible input thresholds.
The 54AC16862 and 54ACT16862 are characterized over the full military temperature range of –55
°
C to 125
°
C.
The 74AC16862 and 74ACT16862 are characterized for operation from –40
°
C to 85
°
C.
FUNCTION TABLE, EACH SECTION
INPUTS
GAB
GBA
L
H
H
L
H
H
L
L
OPERATION
A to B
B to A
Isolation
Latch A and B
(A = B)
EPIC and Widebus are trademarks of Texas Instruments
Incorporated.
1
2
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5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
1GAB
1B1
1B2
GND
1B3
1B4
V
CC
1B5
1B6
1B7
GND
1B8
1B9
1B10
2B1
2B2
2B3
GND
2B4
2B5
2B6
V
CC
2B7
2B8
GND
2B9
2B10
1GBA
1A1
1A2
GND
1A3
1A4
V
CC
1A5
1A6
1A7
GND
1A8
1A9
1A10
2A1
2A2
2A3
GND
2A4
2A5
2A6
V
CC
2A7
2A8
GND
2A9
2A10
16862, 54ACT16862 . . . WD PACKAGE
16862, 74ACT16862 . . . DL PACKAGE
(T0P VIEW)
P
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