数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

SN74HC191NSR 数据表(PDF) 1 Page - Texas Instruments

Click here to check the latest version.
部件名 SN74HC191NSR
功能描述  4-BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS
Download  21 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

SN74HC191NSR 数据表(HTML) 1 Page - Texas Instruments

  SN74HC191NSR Datasheet HTML 1Page - Texas Instruments SN74HC191NSR Datasheet HTML 2Page - Texas Instruments SN74HC191NSR Datasheet HTML 3Page - Texas Instruments SN74HC191NSR Datasheet HTML 4Page - Texas Instruments SN74HC191NSR Datasheet HTML 5Page - Texas Instruments SN74HC191NSR Datasheet HTML 6Page - Texas Instruments SN74HC191NSR Datasheet HTML 7Page - Texas Instruments SN74HC191NSR Datasheet HTML 8Page - Texas Instruments SN74HC191NSR Datasheet HTML 9Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 21 page
background image
SN54HC191, SN74HC191
4BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS
SCLS121D − DECEMBER 1982 − REVISED OCTOBER 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Wide Operating Voltage Range of 2 V to 6 V
D Outputs Can Drive Up To 10 LSTTL Loads
D Low Power Consumption, 80-µA Max ICC
D Typical tpd = 13 ns
D ±4-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
D Single Down/Up Count-Control Line
D Look-Ahead Circuitry Enhances Speed of
Cascaded Counters
D Fully Synchronous in Count Modes
D Asynchronously Presettable With Load
Control
description/ordering information
The ’HC191 devices are 4-bit synchronous,
reversible,
up/down
binary
counters.
Synchronous counting operation is provided by
having all flip-flops clocked simultaneously so that
the outputs change coincident with each other
when instructed by the steering logic. This mode
of operation eliminates the output counting spikes
normally
associated
with
asynchronous
(ripple-clock) counters.
The outputs of the four flip-flops are triggered on
a low- to high-level transition of the clock (CLK)
input if the count-enable (CTEN) input 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 D/U is low, the counter
counts up, and when D/U is high, it counts down.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N
Tube of 25
SN74HC191N
SN74HC191N
Tube of 40
SN74HC191D
−40
°C to 85°C
SOIC − D
Reel of 2500
SN74HC191DR
HC191
−40 C to 85 C
SOIC − D
Reel of 250
SN74HC191DT
HC191
SOP − NS
Reel of 2000
SN74HC191NSR
HC191
CDIP − J
Tube of 25
SNJ54HC191J
SNJ54HC191J
−55
°C to 125°C
CFP − W
Tube of 150
SNJ54HC191W
SNJ54HC191W
−55 C to 125 C
LCCC − FK
Tube of 55
SNJ54HC191FK
SNJ54HC191FK
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
B
QB
QA
CTEN
D/U
QC
QD
GND
VCC
A
CLK
RCO
MAX/MIN
LOAD
C
D
SN54HC191 ...J OR W PACKAGE
SN74HC191 . . . D, N, OR NS PACKAGE
(TOP VIEW)
32 1 20 19
910 11 1213
4
5
6
7
8
18
17
16
15
14
CLK
RCO
NC
MAX/MIN
LOAD
QA
CTEN
NC
D/U
QC
SN54HC191 . . . FK PACKAGE
(TOP VIEW)
NC − No internal connection
Copyright
 2003, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
On products compliant to MILPRF38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.


类似零件编号 - SN74HC191NSR

制造商部件名数据表功能描述
logo
Texas Instruments
SN74HC191NSR TI-SN74HC191NSR Datasheet
473Kb / 17P
[Old version datasheet]   4-BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS
SN74HC191NSRE4 TI-SN74HC191NSRE4 Datasheet
473Kb / 17P
[Old version datasheet]   4-BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS
More results

类似说明 - SN74HC191NSR

制造商部件名数据表功能描述
logo
Aeroflex Circuit Techno...
UT54ACS191 AEROFLEX-UT54ACS191 Datasheet
258Kb / 10P
   Synchronous 4-Bit Up-Down Binary Counters
logo
Texas Instruments
SN54ALS191A TI1-SN54ALS191A_15 Datasheet
625Kb / 18P
[Old version datasheet]   SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
SN54ALS169B TI-SN54ALS169B_07 Datasheet
686Kb / 19P
[Old version datasheet]   SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
SN54ALS169B TI-SN54ALS169B Datasheet
148Kb / 9P
[Old version datasheet]   SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
SN54ALS191A TI-SN54ALS191A Datasheet
133Kb / 8P
[Old version datasheet]   SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
SN54ALS193A TI1-SN54ALS193A_15 Datasheet
404Kb / 15P
[Old version datasheet]   SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
SN54LS169B TI-SN54LS169B_99 Datasheet
421Kb / 12P
[Old version datasheet]   SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
SN54HC191 TI-SN54HC191 Datasheet
473Kb / 17P
[Old version datasheet]   4-BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS
SN54LS169B TI-SN54LS169B Datasheet
823Kb / 20P
[Old version datasheet]   SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
logo
Hitachi Semiconductor
HD74LS669 HITACHI-HD74LS669 Datasheet
102Kb / 7P
   Synchronous Up/Down 4-bit Binary Counters
logo
Texas Instruments
SN54ALS169B TI-SN54ALS169B_08 Datasheet
826Kb / 20P
[Old version datasheet]   SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com