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參數(shù)資料
| 型號： | SN54LVTH2952FK |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | LVT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CQCC28 |
| 封裝： | CERAMIC, CC-28 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 220K |
| 代理商： | SN54LVTH2952FK |
SN54LVTH2952, SN74LVTH2952
3.3-V ABT OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCBS710D – OCTOBER 1997 – REVISED APRIL 1999
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
These devices are fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry
disables the outputs, preventing damaging current backflow through the devices when they are powered down.
The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,
which prevents driver conflict.
The SN54LVTH2952 is characterized for operation over the full military temperature range of –55
°C to 125°C.
The SN74LVTH2952 is characterized for operation from –40
°C to 85°C.
FUNCTION TABLE
INPUTS
OUTPUT
CLKENAB
CLKAB
OEAB
A
B
H
X
L
X
B0
X
H or L
L
X
B0
L
↑
LL
L
↑
LH
H
X
H
X
Z
A-to-B data flow is shown; B-to-A data flow is similar
but uses CLKENBA, CLKBA, and OEBA.
Level of B before the indicated steady-state input
conditions were established
logic symbol§
B1
8
5D
A1
16
A2
17
A3
18
A4
19
EN3
15
1 C5
B2
7
B3
6
B4
5
A5
20
A6
21
A7
22
A8
23
B5
4
B6
3
B7
2
B8
1
G2
11
G1
13
EN4
9
2 C6
OEBA
CLKENBA
OEAB
CLKENAB
14
CLKBA
10
CLKAB
§ This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the DB, DGV, DW, JT, and PW packages.
4
1
6D
3
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