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參數資料
| 型號： | 74HC190 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 通用總線功能 |
| 英文描述： | Presettable synchronous BCD decade up/down counter |
| 中文描述： | 可預置同步BCD碼十年向上/向下計數器 |
| 文件頁數： | 3/13頁 |
| 文件大小： | 101K |
| 代理商： | 74HC190 |
December 1990
3
Philips Semiconductors
Product specification
Presettable synchronous BCD decade
up/down counter
74HC/HCT190
QUICK REFERENCE DATA
GND = 0 V; T
amb
= 25
°
C; t
r
= t
f
= 6 ns
Notes
1.
C
PD
is used to determine the dynamic power dissipation (P
D
in
μ
W):
P
D
= C
PD
×
V
CC2
×
f
i
+ ∑
(C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz
f
o
= output frequency in MHz
∑
(C
L
×
V
CC2
×
f
o
) = sum of outputs
C
L
= output load capacitance in pF
V
CC
= supply voltage in V
For HC the condition is V
I
= GND to V
CC
For HCT the condition is V
I
= GND to V
CC
1.5 V
2.
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package Information”
.
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
HC
HCT
t
PHL
/ t
PLH
f
max
C
I
C
PD
propagation delay CP to Q
n
maximum clock frequency
input capacitance
power dissipation capacitance per flip-flop
C
L
= 15 pF; V
CC
= 5 V
22
28
3.5
36
24
30
3.5
38
ns
MHz
pF
pF
notes 1 and 2
相關PDF資料 |
PDF描述 |
|---|---|
| 74HC190D | Presettable synchronous BCD decade up/down counter |
| 74HC190DB | Presettable synchronous BCD decade up/down counter |
| 74HC190N | Presettable synchronous BCD decade up/down counter |
| 74HC190PW | Presettable synchronous BCD decade up/down counter |
| 74HCT190D | Presettable synchronous BCD decade up/down counter |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 74HC190D | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Presettable synchronous BCD decade up/down counter |
| 74HC190DB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Presettable synchronous BCD decade up/down counter |
| 74HC190D-T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Asynchronous Up/Down Counter |
| 74HC190N | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Presettable synchronous BCD decade up/down counter |
| 74HC190PW | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Presettable synchronous BCD decade up/down counter |
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