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參數(shù)資料
| 型號： | SN54ALS273FK |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | OCTAL D-TYPE FLIP-FLOPS WITH CLEAR |
| 中文描述： | 八路D型倒裝，沒有明確的觸發(fā)器 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大小： | 93K |
| 代理商： | SN54ALS273FK |
SN54ALS273, SN74ALS273
OCTAL D-TYPE FLIP-FLOPS
WITH CLEAR
SDAS218A – APRIL 1982 – REVISED DECEMBER 1994
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
SN54ALS273
MIN
NOM
SN74ALS273
MIN
NOM
UNIT
MAX
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
–1
–2.6
mA
Low-level output current
12
24
mA
Clock frequency
0
30
0
35
MHz
CLR low
10
10
tw
Pulse duration
CLK high
16.5
14
ns
CLK low
16.5
14
tsu
Set p time before CLK
Setup time before CLK
↑
Data
10
10
ns
CLR inactive state
15
15
th
TA
Hold time, data after CLK
↑
Operating free-air temperature
0
0
ns
°
C
–55
125
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS273
MIN
TYP
SN74ALS273
MIN
TYP
UNIT
MAX
MAX
VIK
VCC = 4.5 V,
VCC = 4.5 V to 5.5 V,
II = –18 mA
IOH = –0.4 mA
IOH = –1 mA
IOH = –2.6 mA
IOL = 12 mA
IOL = 24 mA
VI = 7 V
VI = 2.7 V
VI = 0.4 V
VO = 2.25 V
–1.5
–1.5
V
VCC –2
2.4
VCC –2
VOH
VCC= 4 5 V
VCC = 4.5 V
3.3
V
2.4
3.2
VOL
VCC= 4 5 V
VCC = 4.5 V
0.25
0.4
0.25
0.4
V
0.35
0.5
II
IIH
IIL
IO
ICCH
ICCL
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V
VCC = 5.5 V
0.1
0.1
mA
μ
A
mA
20
20
–0.2
–0.2
–20
–112
–30
–112
mA
11
20
11
20
mA
19
29
19
29
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.
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