DM74LS169A 데이터 시트보기 (PDF) - Fairchild Semiconductor
부품명
상세내역
제조사
DM74LS169A Datasheet PDF : 8 Pages
| |||
Switching Characteristic
at VCC = 5V and TA = 25˚C (for Test Waveforms and Output Load)
From (Input)
Symbol
Parameter
To (Output)
fMAX
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
Maximum Clock
Frequency
Propagation Delay Time
Low to High Level Output
Propagation Delay Time
High to Low Level Output
Propagation Delay Time
Low to High Level Output
Propagation Delay Time
High to Low Level Output
Propagation Delay Time
Low to High Level Output
Propagation Delay Time
High to Low Level Output
Propagation Delay Time
Low to High Level Output
Propagation Delay Time
High to Low Level Output
Clock to
Ripple Carry
Clock to
Ripple Carry
Clock to
Any Q
Clock to
Any Q
Enable T to
Ripple Carry
Enable T to
Ripple Carry
Up/Down to
Ripple Carry (Note 8)
Up/Down to
Ripple Carry (Note 8)
RL = 2 kΩ
CL = 15 pF
CL = 50 pF
Min
Max
Min
Max
25
20
35
39
35
44
20
24
23
32
18
24
18
28
25
30
29
38
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
Note 8: The propagation delay from UP/DOWN to RIPPLE CARRY must be measured with the counter at either a minimum or a maximum count. As the logic level
of the up/down input is changed, the ripple carry output will follow. If the count is minimum, the ripple carry output transition will be in phase. If the count is maximum,
the ripple carry output will be out of phase.
3
www.fairchildsemi.com
Share Link: 