MC54F646 Просмотр технического описания (PDF) - Motorola => Freescale
Номер в каталоге
Компоненты Описание
Список матч
MC54F646 Datasheet PDF : 6 Pages
| |||
MC54/74F646 • MC54/74F648
AC ELECTRICAL CHARACTERISTICS
Symbol
fMAX
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPZH
tPZL
tPHZ
tPLZ
Parameter
Maximum Clock Frequency
Propagation Delay
Clock to Bus
Propagation Delay
Bus to Bus (F646)
Propagation Delay
Bus to Bus (F648)
Propagation Delay
SBA or SAB to An or Bn
Output Enable Time
OE to An or Bn
Output Disable Time
OE to An or Bn
Output Enable Time
DIR to An or Bn
Output Disable Time
DIR to An or Bn
AC OPERATING REQUIREMENTS
Symbol
ts(H)
ts(L)
th(H)
th(L)
tw(H)
tw(L)
Parameter
Setup Time, HIGH or LOW
Bus to Clock
Hold Time, HIGH or LOW
Bus to Clock
Clock Pulse Width
HIGH or LOW
54/74F
TA = +25°C
VCC = +5.0 V
CL = 50 pF
RL = 500 Ω
Min
Max
100
—
2.0
7.0
2.0
8.0
1.0
7.0
1.0
6.5
1.0
7.0
1.0
6.5
2.0
7.5
2.0
7.5
2.0
7.0
2.0
7.0
1.0
7.0
2.0
7.0
2.0
7.0
2.0
7.0
1.0
7.0
2.0
7.0
54F
TA = –55°C to +125°C
VCC = +5.0 V ±10%
CL = 50 pF
RL = 500 Ω
Min
Max
75
—
2.0
8.5
2.0
9.5
1.0
8.0
1.0
8.0
1.0
10.0
1.0
9.0
2.0
10.0
2.0
10.0
2.0
9.5
2.0
9.5
1.0
9.5
2.0
9.5
2.0
9.5
2.0
9.5
1.0
9.5
2.0
9.5
74F
TA = 0°C to +70°C
VCC = +5.0 V ±10%
CL = 50 pF
RL = 500 Ω
Min
Max
90
—
2.0
8.0
2.0
9.0
1.0
7.5
1.0
7.0
1.0
7.5
1.0
7.0
2.0
9.0
2.0
9.0
2.0
8.5
2.0
8.5
1.0
8.5
2.0
8.5
2.0
8.5
2.0
8.5
1.0
8.5
2.0
8.5
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
54/74F
54F
74F
TA = +25°C
VCC = +5.0 V
CL = 50 pF
RL = 500 Ω
TA = –55°C to +125°C
VCC = +5.0 V ±10%
CL = 50 pF
RL = 500 Ω
TA = 0°C to +70°C
VCC = +5.0 V ±10%
CL = 50 pF
RL = 500 Ω
Min
Max
Min
Max
Min
Max
Unit
4.0
—
5.0
—
5.0
—
ns
4.0
—
5.0
—
5.0
—
0.0
—
0.0
—
0.0
—
ns
0.0
—
0.0
—
0.0
—
4.0
—
4.0
—
4.0
—
ns
5.0
—
5.0
—
5.0
—
FAST AND LS TTL DATA
4-246
Share Link: 