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參數資料
| 型號： | SN54ABT273W |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLEAR |
| 中文描述： | 八路邊沿觸發(fā)的D型倒裝，沒有明確的觸發(fā)器 |
| 文件頁數： | 3/16頁 |
| 文件大?。?/td> | 541K |
| 代理商： | SN54ABT273W |
SN54ABT273, SN74ABT273
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLEAR
SCBS185B – FEBRUARY 1991 – REVISED JANUARY 1997
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54ABT273
MIN
SN74ABT273
MIN
UNIT
MAX
MAX
VCC
VIH
VIL
VI
IOH
IOL
t/
v
TA
NOTE 3: Unused inputs must be held high or low to prevent them from floating.
Supply voltage
4.5
5.5
4.5
5.5
V
High-level input voltage
2
2
V
Low-level input voltage
0.8
0.8
V
Input voltage
0
VCC
–24
0
VCC
–32
V
High-level output current
mA
Low-level output current
48
64
mA
Input transition rise or fall rate
10
10
ns/V
°
C
Operating free-air temperature
–55
125
–40
85
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TA = 25
°
C
TYP
SN54ABT273
MIN
SN74ABT273
MIN
UNIT
MIN
MAX
MAX
MAX
VIK
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 5 V,
II = –18 mA
IOH = –3 mA
IOH = –3 mA
IOH = –24 mA
IOH = –32 mA
IOL = 48 mA
IOL = 64 mA
–1.2
–1.2
–1.2
V
2.5
2.5
2.5
VOH
3
3
3
V
VCC= 4 5 V
VCC = 4.5 V
2
2
2*
2
VOL
VCC= 4 5 V
VCC = 4.5 V
0.55
0.55
V
0.55*
0.55
Vhys
II
Ioff
ICEX
IO
100
mV
μ
A
μ
A
μ
A
mA
μ
A
mA
VCC = 5.5 V,
VCC = 0,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,O
VI = VCC or GND
VCC = 5.5 V, One input at 3.4 V,
Other inputs at VCC or GND
VI = 2.5 V or 0.5 V
VI = VCC or GND
VI or VO
≤
4.5 V
VO = 5.5 V
VO = 2.5 V
±
1
±
1
±
1
±
100
50
–200§
400§
±
100
50
–200§
400§
Outputs high
50
–50
–100
–50
–200§
400§
–50
ICC
Outputs high
1
Outputs low
24
30
30
30
ICC
1.5
1.5
1.5
mA
Ci
7
pF
* On products compliant to MIL-PRF-38535, this parameter does not apply.
All typical values are at VCC = 5 V.
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
§This data sheet limit may vary among suppliers.
This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
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