參數(shù)資料
型號： SN74ALS193ADR
廠商： TEXAS INSTRUMENTS INC
元件分類： 計數(shù)器
英文描述： ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16
封裝： GREEN, PLASTIC, MS-012AC, SOIC-16
文件頁數(shù)： 15/19頁
文件大?。?/td> 726K
代理商： SN74ALS193ADR
SN54ALS193A, SN74ALS193A
SYNCHRONOUS 4BIT UP/DOWN BINARY COUNTERS
WITH DUAL CLOCK AND CLEAR
SDAS211C DECEMBER 1982 REVISED JULY 1996
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: SN54ALS193A
55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS193A
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
recommended operating conditions
SN54ALS193A
SN74ALS193A
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.7
0.8
V
IOH
High-level output current
0.4
mA
IOL
Low-level output current
4
8
mA
fclock
Clock frequency
0
20
0
30
MHz
CLR high
10
tw
Pulse duration
LOAD low
25
20
ns
tw
Pulse duration
UP or DOWN high or low
30
16.5
ns
Data before LOAD
↑
25
20
tsu
Setup time
CLR inactive before UP or DOWN
20
ns
tsu
Setup time
LOAD inactive before UP or DOWN
20
ns
Data after LOAD
↑
5
th
Hold time
UP high after DOWN
↑
5
0
ns
th
Hold time
DOWN high after UP
↑
5
0
ns
TA
Operating free-air temperature
55
125
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS193A
SN74ALS193A
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VIK
VCC = 4.5 V,
II = 18 mA
1.5
V
VOH
VCC = 4.5 V to 5.5 V,
IOH = 0.4 mA
VCC 2
V
VOL
VCC = 4.5 V
IOL = 4 mA
0.25
0.4
0.25
0.4
V
VOL
VCC = 4.5 V
IOL = 8 mA
0.35
0.5
V
II
VCC = 5.5 V,
VI = 7 V
0.1
0.35
0.1
mA
IIH
VCC = 5.5 V,
VI = 2.7 V
20
A
IIL
UP or DOWN
VCC = 5.5 V,
VI = 0.4 V
0.2
mA
IIL
All others
VCC = 5.5 V,
VI = 0.4 V
0.1
mA
IO§
VCC = 5.5 V,
VO = 2.25 V
20
112
30
112
mA
ICC
VCC = 5.5 V,
See Note 1
12
22
12
22
mA
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.
NOTE 1: ICC is measured with the clear and load inputs grounded and all other inputs at 4.5 V.
相關PDF資料
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