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參數(shù)資料
| 型號： | SN54BCT25245W |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | Reference Voltage Generator for Vcom Adjustment 10-SON |
| 中文描述： | 25ohm八路總線收發(fā)器與三態(tài)輸出 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 91K |
| 代理商： | SN54BCT25245W |
SN54BCT25245, SN74BCT25245
25-
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS053B – MAY 1990 – REVISED APRIL 1994
Copyright
1994, Texas Instruments Incorporated
2–1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
State-of-the-Art BiCMOS Design
Significantly Reduces I
CCZ
ESD Protection Exceeds 2000 V Per
MIL-STD-883C, Method 3015; Exceeds
200 V Using Machine Model (C = 200 pF,
R = 0)
Designed to Facilitate Incident-Wave
Switching for Line Impedances of 25
or Greater
Distributed V
CC
and GND Pins Minimize
Noise Generated by the Simultaneous
Switching of Outputs
Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK) and Flatpacks (W), and
Standard Plastic and Ceramic 300-mil DIPs
(JT, NT)
description
The
′
BCT25245 is a 25-
octal bus transceiver
designed for asynchronous communication
between data buses. It improves both the
performance and density of 3-state memory
address drivers, clock drivers, and bus-oriented
transceivers.
The device allows data transmission from the A
bus to the B bus or from the B bus to the A bus
depending upon the logic level at the
direction-control (DIR) input. The output-enable
(OE) input can disable the device so that both
buses are effectively isolated.
These transceivers are capable of sinking 188-mA
I
OL
, which facilitates switching 25-
transmission
lines on the incident wave. The distributed V
CC
and GND pins minimize switching noise for more
reliable system operation.
The SN54BCT25245 is characterized for opera-
tion over the full military temperature range of
–55
°
C to 125
°
C. The SN74BCT25245 is
characterized for operation from 0
°
C to 70
°
C.
FUNCTION TABLE
INPUTS
OPERATION
OE
DIR
L
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
A1
GND
A2
A3
GND
A4
A5
GND
A6
A7
GND
A8
DIR
B1
B2
V
CC
B3
B4
B5
B6
V
CC
B7
B8
OE
SN54BCT25245 . . . JT OR W PACKAGE
SN74BCT25245 . . . DW OR NT PACKAGE
(TOP VIEW)
3 2 1 28 27
12 13
5
6
7
8
9
10
11
25
24
23
22
21
20
19
OE
A8
GND
NC
A7
A6
GND
B3
V
CC
B2
NC
B1
DIR
A1
4
26
14 15 16 17 18
G
A
A
N
G
A
A
B
B
B
N
V
B
B
SN54BCT25245 . . . FK PACKAGE
(TOP VIEW)
C
NC – No internal connection
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information current as of publication date. Products conform to
specifications per the terms of Texas Instruments standard warranty.
parameters.
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