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参数资料
| 型号： | SN54LVTH16500WD |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | Analog Multiplexers/Demultiplexers with Injection Current Effect Control; Package: SOIC 16 LEAD; No of Pins: 16; Container: Tape and Reel; Qty per Container: 2500 |
| 中文描述： | 的3.3V ABT生根粉18位通用总线收发3态输出 |
| 文件页数： | 2/9页 |
| 文件大小： | 135K |
| 代理商： | SN54LVTH16500WD |
SN54LVTH16500, SN74LVTH16500
3.3-V ABT 18-BIT UNIVERSAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS701D – JULY 1997 – REVISED APRIL 1999
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
Data flow for B to A is similar to that of A to B but uses OEBA, LEBA, and CLKBA. The output enables are
complementary (OEAB is active high and OEBA is active low).
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
When V
CC
is between 0 and 1.5 V, the devices are 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 V
CC
through a pullup resistor
and OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by
the current-sinking/current-sourcing capability of the driver.
These devices are fully specified for hot-insertion applications using I
off
and power-up 3-state. The I
off
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 SN54LVTH16500 is characterized for operation over the full military temperature range of –55
°
C to 125
°
C.
The SN74LVTH16500 is characterized for operation from –40
°
C to 85
°
C.
FUNCTION TABLE
INPUTS
LEAB
OUTPUT
B
OEAB
CLKAB
A
L
X
X
X
Z
H
H
X
L
L
H
H
X
↓
↓
H
H
H
H
L
L
L
H
L
H
H
H
L
X
B0
B0§
H
L
L
X
A-to-B data flow is shown: B-to-A flow is similar but
uses OEBA, LEBA, and CLKBA.
Output level before the indicated steady-state input
conditions were established
§Output level before the indicated steady-state input
conditions were established, provided that CLKAB
was low before LEAB went low
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