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參數(shù)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(yù)置同步BCD碼十年向上/向下計(jì)數(shù)器 |
| 文件頁數(shù)： | 12/13頁 |
| 文件大?。?/td> | 101K |
| 代理商： | 74HC190 |
December 1990
12
Philips Semiconductors
Product specification
Presettable synchronous BCD decade
up/down counter
74HC/HCT190
AC WAVEFORMS
Fig.10 Waveforms showing the clock (CP) to
output (Q
n
) propagation delays, the clock
pulse width and the maximum clock pulse
frequency.
(1) HC : V
M
= 50%; V
I
= GND to V
.
HCT : V
M
= 1.3 V; V
I
= GND to 3 V.
Fig.11 Waveforms showing the clock and count
enable inputs (CP, CE) to ripple clock
output (RC) propagation delays.
(1) HC : V
M
= 50%; V
I
= GND to V
.
HCT : V
M
= 1.3 V; V
I
= GND to 3 V.
Fig.12 Waveforms showing the input (D
n
) to output
(Q
n
) propagation delays.
(1) HC : V
M
= 50%; V
I
= GND to V
.
HCT : V
M
= 1.3 V; V
I
= GND to 3 V.
Fig.13 Waveforms showing the input (PL) to output
(Q
n
) propagation delays.
(1) HC : V
M
= 50%; V
I
= GND to V
.
HCT : V
M
= 1.3 V; V
I
= GND to 3 V.
Fig.14 Waveforms showing the up/down count
input (U/D) to terminal count and ripple
clock output (TC, RC) propagation delays.
(1) HC : V
M
= 50%; V
I
= GND to V
.
HCT : V
M
= 1.3 V; V
I
= GND to 3 V.
Fig.15 Waveforms showing the parallel load input
(PL) pulse width, removal time to clock (CP)
and the output (Q
n
) transition times.
(1) HC :
V
M
= 50%;
V
I
= GND to
V
CC
.
HCT :
V
M
= 1.3 V;
V
= GND to
3 V.
相關(guān)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(guān)代理商/技術(shù)參數(shù) |
參數(shù)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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