- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄369300 > 74ALS191 (Texas Instruments, Inc.) SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS PDF資料下載
參數(shù)資料
| 型號： | 74ALS191 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS |
| 中文描述： | 同步4位向上/向下二進(jìn)制計(jì)數(shù)器 |
| 文件頁數(shù)： | 5/8頁 |
| 文件大小： | 133K |
| 代理商： | 74ALS191 |
SN54ALS191A, SN74ALS191A
SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
SDAS210C – DECEMBER 1982 – REVISED JULY 1996
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
CC
Input voltage, V
I
Operating free-air temperature range, T
A
: SN54ALS191A
7 V
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS191A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
–55
°
C to 125
°
C
0
°
C to 70
°
C
–65
°
C to 150
°
C
recommended operating conditions
SN54ALS191A
SN74ALS191A
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
VCC
VIH
VIL
IOH
IOL
fclock
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
High-level input voltage
2
2
V
Low-level input voltage
0.7
0.8
V
High-level output current
–0.4
–0.4
mA
Low-level output current
4
8
mA
Clock frequency
0
20
0
30
MHz
tw
Pulse duration
CLK high or low
20
16.5
ns
LOAD low
Data before LOAD
↑
CTEN before CLK
↑
D/U before CLK
↑
LOAD inactive before CLK
↑
Data after LOAD
↑
CTEN after CLK
↑
D/U after CLK
↑
25
20
25
20
tsu
Setup time
45
20
ns
30
20
20
20
5
5
th
Hold time
0
0
ns
0
0
TA
Operating free-air temperature
–55
125
0
70
°
C
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74ALS540 | OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS |
| 74ALS540 | Octal Inverting Buffer and Line Driver with 3-STATE Outputs |
| 74ALS573 | OCTAL D-TYPE TRANSPARENT LATCHES WITH 3-STATE OUTPUTS |
| 74ALS574 | OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS |
| 74ALS688 | 8-BIT IDENTITY COMPARATORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74ALS193N | 制造商:Texas Instruments 功能描述: |
| 74ALS193NTI88 | 制造商:TI 功能描述:74ALS193N |
| 74ALS20 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual 4-Input NAND gate |
| 74ALS20A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual 4-Input NAND gate |
| 74ALS20AD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual 4-Input NAND gate |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。