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參數(shù)資料
| 型號： | SN54LVTH543W |
| 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, CDFP24 |
| 封裝： | CERAMIC, DFP-24 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 228K |
| 代理商： | SN54LVTH543W |
SN54LVTH543, SN74LVTH543
3.3-V ABT OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS704D – AUGUST 1997 – REVISED APRIL 1999
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
When VCC is between 0 and 1.5 V, the device is in the high-impedance state during power up or power down.
However, to ensure the high-impedance state above 1.5 V, OE should be tied to VCC through a pullup resistor;
the minimum value of the resistor is determined by the current-sinking capability of the driver.
This device is 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 device when it is 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 SN54LVTH543 is characterized for operation over the full military temperature range of –55
°C to 125°C.
The SN74LVTH543 is characterized for operation from –40
°C to 85°C.
FUNCTION TABLE
INPUTS
OUTPUT
CEAB
LEAB
OEAB
A
B
H
X
Z
X
XH
X
Z
L
HL
X
B0
L
LL
L
H
A-to-B data flow is shown; B-to-A flow control is the
same except that it uses CEBA, LEBA, and OEBA.
Output level before the indicated steady-state
input conditions were established
logic symbol§
4
2C6
14
3
A1
4
A2
B1
22
5D
5
A3
6
A4
7
A5
8
A6
9
A7
10
A8
B2
21
B3
20
B5
18
B4
19
B6
17
B8
15
B7
16
LEAB
3
G2
11
CEAB
2EN4
13
OEAB
1C5
1
LEBA
G1
23
CEBA
1EN3
2
OEBA
6D
§ 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, PW, and W packages.
1
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