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參數(shù)資料
| 型號(hào)： | SN54AS821AFK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 10-BIT BUS-INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS |
| 中文描述： | 10位總線接口倒裝3觸發(fā)器態(tài)輸出 |
| 文件頁(yè)數(shù)： | 3/6頁(yè) |
| 文件大?。?/td> | 92K |
| 代理商： | SN54AS821AFK |
SN54AS821A, SN74AS821A
10-BIT BUS-INTERFACE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SDAS230A – DECEMBER 1983 – REVISED AUGUST 1995
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
SN54AS821A
MIN
NOM
SN74AS821A
MIN
NOM
UNIT
MAX
MAX
VCC
VIH
VIL
IOH
IOL
tw*
tsu*
th*
TA
* On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested.
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
High-level input voltage
2
2
V
Low-level input voltage
0.8
0.8
V
High-level output current
–24
–24
mA
Low-level output current
32
48
mA
Pulse duration, CLK high or low
Setup time, data before CLK
↑
Hold time, data after CLK
↑
Operating free-air temperature
9
8
ns
7
6
ns
0
0
ns
°
C
–55
125
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54AS821A
TYP
SN74AS821A
TYP
UNIT
MIN
MAX
MIN
MAX
VIK
VCC = 4.5 V,
VCC = 4.5 V to 5.5 V,
II = –18 mA
IOH = –2 mA
IOH = –15 mA
IOH = –24 mA
IOL = 32 mA
IOL = 48 mA
VO = 2.7 V
VI = 0.4 V
VI = 7 V
VI = 2.7 V
VI = 0.4 V
VO = 2.25 V
Outputs high
–1.2
–1.2
V
VCC –2
2.4
VCC –2
2.4
VOH
VCC= 4 5 V
VCC = 4.5 V
3.2
3.2
V
2
2
VOL
VCC= 4 5 V
VCC = 4.5 V
0.25
0.5
V
0.35
0.5
IOZH
IOZL
II
IIH
IIL
IO
VCC = 5.5 V,
VCC = 5.5 V,
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
mA
–50
–50
0.1
0.1
20
20
–0.5
–0.5
–30
–112
–30
–112
mA
55
88
55
88
ICC
VCC = 5.5 V
Outputs low
Outputs disabled
68
70
109
113
68
70
109
113
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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