- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄369293 > 74ACT11190 (Texas Instruments, Inc.) Synchronous 4-Bit Up/Down Decade Counters(4位同步十進制計數(shù)器) PDF資料下載
參數(shù)資料
| 型號： | 74ACT11190 |
| 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 Counters(4位同步十進制計數(shù)器) |
| 中文描述： | 同步4位向上/向下計數(shù)器十年（4位同步十進制計數(shù)器） |
| 文件頁數(shù)： | 1/9頁 |
| 文件大小： | 167K |
| 代理商： | 74ACT11190 |
54ACT11190, 74ACT11190
SYNCHRONOUS 4-BIT UP/DOWN DECADE COUNTERS
SCAS383 – MARCH 1990
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Copyright
1990, Texas Instruments Incorporated
1
Inputs Are TTL-Voltage Compatible
Single Down/Up Count Control Line
Look-Ahead Circuitry Enhances Speed of
Cascaded Counters
Fully Synchronous in Count Modes
Asynchronously Presettable With Load
Control
Flow-Through Architecture to Optimize
PCB Layout
Center-Pin V
CC
and GND Configurations to
Minimize High-Speed Switching Noise
EPIC (Enhanced-Performance Implanted
CMOS) 1- m Process
500-mA Typical Latch-Up Immunity
at 125
°
C
Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and
Ceramic 300-mil DIPs
description
The ’ACT11190 is a synchronous, 4-bit decade
reversable up/down counter. Synchronous
counting operation is provided by having all
flip-flops clocked simultaneously so that the
outputs change coincident with each other when
so instructed by the steering logic.This mode of
operation eliminates the output counting spikes
normally
associated
(ripple-clock) counters.
with
asynchronous
The outputs of the four flip-flops are triggered on
a low-to-high transition of the clock input if the
enable input (CTEN) is low. A high at CTEN
inhibits counting. The direction of the count is
determined by the level of the down/up (D/U)
input. When the D/U input is low, the counter
counts up. When the D/U input is high, the counter
counts down.
These counters feature a fully independent clock
circuit. Changes at control inputs (CTEN and D/U)
that will modify the operating mode have no effect
on the contents of the counter until clocking
occurs. The function of the counter is dictated
solely by the condition meeting the stable setup
and hold times.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
RCO
Q
A
Q
B
GND
GND
GND
GND
Q
C
Q
D
MAX/MIN
54ACT11190 . . . J PACKAGE
74ACT11190 . . . DW OR N PACKAGE
(T0P VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
D
CTEN
LOAD
MAX/MIN
Q
D
CLK
D/U
RCO
Q
A
Q
B
54ACT11190 . . . FK PACKAGE
(T0P VIEW)
A
B
V
G
Q
V
C
G
G
G
logic symbol
B
12
20
18
17
13
14
11
19
CLK
C
D
A
G1
M2 [DOWN]
M3 [UP]
1,2–/1,3+
G4
C5
9
8
3
2
6,1,4
3(CT=9)Z6
2(CT=0)Z6
CTRDIV10
RCO
MAX/MIN
10
1
5D
[1]
[2]
[4]
[8]
CTEN
LOAD
D/U
QA
QB
QC
QD
This symbol is in accordance with ANSI/IEEE Std. 91-1984 and
IEC Publication 617-12.
Pin numbers shown are for DW, J, and N packages.
D/U
CLK
A
B
V
CC
V
CC
C
D
CTEN
LOAD
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
P
EPIC is a trademark of Texas Instruments Incorporated.
相關PDF資料 |
PDF描述 |
|---|---|
| 74ACT11240DB | OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS |
| 74ACT11244DB | CAP .001UF 50V PPS FILM 0805 2% |
| 74ACT11245DB | OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS |
| 74ACT11257DB | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS |
| 74ACT11257N | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 74ACT11208DW | 制造商:TI 功能描述:11208 TI |
| 74ACT11208N | 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, DIP |
| 74ACT11240DBLE | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 74ACT11240DBR | 功能描述:緩沖器和線路驅(qū)動器 Octal Buf/Line Drv w/3-State Outputs RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74ACT11240DBRE4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buf/Line Drv w/3-State Outputs RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復。