參數(shù)資料
型號: MC74AC74DR2
廠商: MOTOROLA INC
元件分類: 鎖存器
英文描述: AC SERIES, DUAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, PDSO14
封裝: PLASTIC, SOIC-14
文件頁數(shù): 5/6頁
文件大小: 188K
代理商: MC74AC74DR2
MC74AC74 MC74ACT74
5-5
FACT DATA
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
Symbol
Parameter
VCC*
(V)
74ACT
Unit
Fig.
No.
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85
°C
CL = 50 pF
Unit
Fig.
No.
Min
Typ
Max
Min
Max
fmax
Maximum Clock
Frequency
5.0
145
210
125
MHz
3-3
fmax
Frequency
5.0
145
210
125
MHz
3-3
tPLH
Propagation Delay
CDn or SDn to Qn or Qn
5.0
3.0
5.5
9.5
2.5
10.5
ns
3-6
tPLH
CDn or SDn to Qn or Qn
5.0
3.0
5.5
9.5
2.5
10.5
ns
3-6
tPHL
Propagation Delay
CDn or SDn to Qn or Qn
5.0
3.0
6.0
10.0
3.0
11.5
ns
3-6
tPHL
CDn or SDn to Qn or Qn
5.0
3.0
6.0
10.0
3.0
11.5
ns
3-6
tPLH
Propagation Delay
CPn to Qn or Qn
5.0
4.0
7.5
11.0
4.0
13.0
ns
3-6
tPLH
CPn to Qn or Qn
5.0
4.0
7.5
11.0
4.0
13.0
ns
3-6
tPHL
Propagation Delay
CPn to Qn or Qn
5.0
3.5
6.0
10.0
3.0
11.5
ns
3-6
tPHL
CPn to Qn or Qn
5.0
3.5
6.0
10.0
3.0
11.5
ns
3-6
* Voltage Range 5.0 V is 5.0 V
±0.5 V.
AC OPERATING REQUIREMENTS
Symbol
Parameter
VCC*
(V)
74ACT
Unit
Fig.
No.
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85
°C
CL = 50 pF
Unit
Fig.
No.
Typ
Guaranteed Minimum
ts
Set-up Time, HIGH or LOW
5.0
1.0
3.0
3.5
ns
3-9
ts
Dn to CPn
5.0
1.0
3.0
3.5
ns
3-9
th
Hold Time, HIGH or LOW
5.0
–0.5
1.0
ns
3-9
th
Dn to CPn
5.0
–0.5
1.0
ns
3-9
tw
CPn or CDn or SDn
5.0
3.0
5.0
6.0
ns
3-6
tw
Pulse Width
5.0
3.0
5.0
6.0
ns
3-6
trec
Recovery TIme
5.0
–2.5
0
ns
3-9
trec
CDn or SDn to CP
5.0
–2.5
0
ns
3-9
* Voltage Range 5.0 V is 5.0 V
±0.5 V.
CAPACITANCE
Symbol
Parameter
Value
Typ
Unit
Test Conditions
CIN
Input Capacitance
4.5
pF
VCC = 5.0 V
CPD
Power Dissipation Capacitance
35
pF
VCC = 5.0 V
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