參數(shù)資料
型號(hào)： SNJ54LV393AW
廠商： TEXAS INSTRUMENTS INC
元件分類： 計(jì)數(shù)器
英文描述： LV/LV-A/LVX/H SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, CDFP14
封裝： CERAMIC, DFP-14
文件頁(yè)數(shù)： 12/20頁(yè)
文件大?。?/td> 631K
代理商： SNJ54LV393AW
SN54LV393A, SN74LV393A
DUAL 4BIT BINARY COUNTERS
SCLS457D FEBRUARY 2001 REVISED APRIL 2005
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering informaton (continued)
These devices comprise two independent 4-bit binary counters, each having a clear (CLR) and a clock (CLK)
input. These devices change state on the negative-going transition of the CLK pulse. N-bit binary counters can
be implemented with each package, providing the capability of divide by 256. The ’LV393A devices have parallel
outputs from each counter stage so that any submultiple of the input count frequency is available for system
timing signals.
These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the
outputs, preventing damaging current backflow through the devices when they are powered down.
FUNCTION TABLE
INPUTS
FUNCTION
CLK
CLR
FUNCTION
↑
L
No change
↓
L
Advance to next stage
X
H
All outputs L
logic diagram, each counter (positive logic)
R
T
QA
CLR
CLK
R
T
QB
R
T
QC
R
T
QD
Q
相關(guān)PDF資料
PDF描述
SN74LV393ADE4 LV/LV-A/LVX/H SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO14
SNJ54LV540AJ LV/LV-A/LVX/H SERIES, 8-BIT DRIVER, INVERTED OUTPUT, CDIP20
SNJ54LV540AFK LV/LV-A/LVX/H SERIES, 8-BIT DRIVER, INVERTED OUTPUT, CQCC20
SNJ54LV595AWR LV/LV-A/LVX/H SERIES, 8-BIT RIGHT SERIAL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, CDFP16
SN74LV595ANSRG4 LV/LV-A/LVX/H SERIES, 8-BIT RIGHT SERIAL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO16
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