參數(shù)資料
型號: SN54ALS190
廠商: Texas Instruments, Inc.
元件分類: 通用總線功能
英文描述: SYNCHRONOUS 4-BIT UP/DOWN DECADE AND BINARY COUNTERS
中文描述: 同步4位向上/向下十年和二進制計數(shù)器
文件頁數(shù): 5/8頁
文件大?。?/td> 140K
代理商: SN54ALS190
SN54ALS191, SN54ALS191
SYNCHRONOUS 4-BIT UP/DOWN DECADE COUNTERS
SDAS210 – D2661, DECEMBER 1982 – REVISED MAY 1986
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
5
typical load, count, and inhibit sequences
7
8
9
0
1
2
2
2
1
0
9
8
RCO
MAX/MIN
QD
QC
QB
QA
7
Count Down
Load
Inhibit
Count Up
Data
Inputs
CTEN
D/U
CLOCK
D
C
B
A
LOAD
’ALS191
Illustrated below is the following sequence:
1. Load (preset) to BCD seven
2. Count up to eight, nine (maximum), zero, one, and two
3. Inhibit
4. Count down to one, zero (minimum), nine, eight, and seven
相關(guān)PDF資料
PDF描述
SN54LS109J LOG CMOS GATE AND QUAD; Package: SOEIAJ-14; No of Pins: 14; Container: Tape and Reel; Qty per Container: 2000
SN54LS112A DUAL JK NEGATIVE EDGE-TRIGGERED FLIP-FLOP
SN74LS112D DUAL JK NEGATIVE EDGE-TRIGGERED FLIP-FLOP
SN74LS112N DUAL JK NEGATIVE EDGE-TRIGGERED FLIP-FLOP
SN54LS113A DUAL JK NEGATIVE EDGE-TRIGGERED FLIP-FLOP
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