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參數(shù)資料
| 型號： | SN54AS374FK |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS |
| 中文描述： | 八路D型沿觸發(fā)器與觸發(fā)器3態(tài)輸出 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大小： | 125K |
| 代理商： | SN54AS374FK |
SN54ALS374A, SN54AS374, SN74ALS374A, SN74AS374
OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
WITH 3-STATE OUTPUTS
SDAS167C – APRIL 1982 – REVISED NOVEMBER 1999
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
SN54AS374
MIN
NOM
SN74AS374
MIN
NOM
UNIT
MAX
MAX
VCC
VIH
VIL
IOH
IOL
TA
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
–12
–15
mA
Low-level output current
32
48
mA
°
C
Operating free-air temperature
–55
125
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54AS374
MIN
SN74AS374
MIN
UNIT
TYP
MAX
TYP
MAX
VIK
VCC = 4.5 V,
VCC = 4.5 V to 5.5 V,
II = –18 mA
IOH = –2 mA
IOH = –12 mA
IOH = –15 mA
IOL = 32 mA
IOL = 48 mA
VO = 2.7 V
VO = 0.4 V
VI = 7 V
VI = 2.7 V
–1.2
–1.2
V
VCC–2
2.4
VCC–2
VOH
VCC= 4 5 V
VCC = 4.5 V
3.2
V
2.4
3.3
VOL
VCC= 4 5 V
VCC = 4.5 V
0.29
0.5
V
0.34
0.5
IOZH
IOZL
II
IIH
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
50
50
μ
A
μ
A
mA
μ
A
–50
–50
0.1
0.1
20
20
IIL
OE, CLK
VCC= 5 5 V
VCC = 5.5 V,
VI= 0 4 V
VI = 0.4 V
–0.5
–0.5
mA
Data
–3
–2
IO
VCC = 5.5 V,
VO = 2.25 V
Outputs high
–30
–112
–30
–112
mA
77
120
77
120
ICC
VCC = 5.5 V
Outputs low
Outputs disabled
84
84
128
128
84
84
128
128
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.
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
SN54AS374
MIN
SN74AS374
MIN
UNIT
MAX
MAX
fclock
Clock frequency
100*
125
MHz
tw
Pulse duration
CLK high
5.5*
4
ns
CLK low
Data before CLK
↑
Data after CLK
↑
3*
3
tsu
th
Setup time
3*
2
ns
Hold time
3*
2
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
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