參數(shù)資料
型號(hào)： 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(jìn)制計(jì)數(shù)器
文件頁(yè)數(shù)： 6/8頁(yè)
文件大?。?/td> 140K
代理商： SN54ALS190
fclock
Clock frequency
MHz
CLK high or low
tsu
Setup time
ns
VOL
V
IIL
VCC = 5.5 V,
VI = 0.4 V
mA
SN54ALS190, SN54ALS191, SN74ALS190, SN74ALS191
SYNCHRONOUS 4-BIT UP/DOWN DECADE COUNTERS
SDAS210 – D2661, DECEMBER 1982 – REVISED MAY 1986
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
6
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
CC
Input voltage
Operating free-air temperature range: SN54ALS190, SN54ALS191
7 V
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–55
°
C to 125
°
C
0
°
C to 70
°
C
–65
°
C to 150
°
C
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
SN74ALS190, SN74ALS191
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
recommended operating conditions
SN54ALS190
SN54ALS191
MIN
NOM
4.5
2
SN74ALS190
SN74ALS191
MIN
NOM
4.5
2
UNIT
MAX
5.5
MAX
5.5
VCC
VIH
VIL
IOH
IOL
Supply voltage
High-level input voltage
Low-level input voltage
High-level output current
Low-level output current
5
5
V
V
V
0.7
–0.4
0.8
–0.4
mA
mA
4
8
’ALS190
’ALS191
0
0
20
20
0
0
25
30
’AS190
‘AS191
25
20
25
25
45
45
20
5
0
0
20
tw
Pulse duration
16.5
20
20
20
20
20
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
↑
5
0
0
0
tsu
Hold time
ns
TA
Operating free-air temperature
–55
125
70
°
C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS190
SN54ALS191
MIN
SN74AAL190
SN74ALS191
MIN
UNIT
TYP
MAX
–1.5
TYP
MAX
–1.5
VIK
VOH
VCC = 4.5 V,
VCC = 4.5 V to 5.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
II = –18 mA
IOH = –0.4 mA
IOL = 4 mA
IOL = 8 mA
VI = 7 V
VI = 2.7 V
V
V
VCC–2
VCC–2
0.25
0.5
0.25
0.35
0.4
0.5
0.1
20
–0.2
–0.1
– 112
II
IIH
0.1
20
–0.2
–0.1
–112
mA
μ
A
CTEN OR CLK
All others
IO
ICC
All typical values are at VCC = 5 V, TA = 25
°
C.
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
VCC = 5.5 V,
VCC = 5.5 V,
VO = 2.25 V
All inputs at 0 V
–30
–30
mA
mA
12
22
12
22
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
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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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