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參數(shù)資料
| 型號： | 74HCT190PW |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 通用總線功能 |
| 英文描述： | Quadruple 2-Line To 1-Line Data Selectors/Multiplexers 16-PDIP -40 to 85 |
| 中文描述： | HCT SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, PDSO16 |
| 文件頁數(shù)： | 5/13頁 |
| 文件大?。?/td> | 101K |
| 代理商： | 74HCT190PW |
December 1990
5
Philips Semiconductors
Product specification
Presettable synchronous BCD decade
up/down counter
74HC/HCT190
FUNCTION TABLE
TC AND RC FUNCTION TABLE
Notes
1.
H = HIGH voltage level
L
= LOW voltage level
I
= LOW voltage level one set-up time prior to the LOW-to-HIGH CP transition
X = don’t care
↑
= LOW-to-HIGH CP transition
= one LOW level pulse
= TC goes LOW on a LOW-to-HIGH CP transition
OPERATING MODE
INPUTS
OUTPUTS
PL
U/D
CE
CP
D
n
L
H
X
X
X
Q
n
L
H
count up
count down
no change
parallel load
L
L
H
H
H
X
X
L
H
X
X
X
I
I
H
X
X
↑
↑
X
count up
count down
hold (do nothing)
INPUTS
TERMINAL COUNT STATE
OUTPUTS
U/D
CE
CP
Q
0
H
H
H
Q
1
X
X
X
Q
2
X
X
X
Q
3
H
H
H
TC
RC
H
L
L
H
H
L
X
X
L
H
H
H
L
H
H
H
H
L
X
X
L
L
L
L
L
L
L
L
L
L
L
L
L
H
H
H
Fig.4 Functional diagram.
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相關代理商/技術參數(shù) |
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| 74HCT191D | 功能描述:計數(shù)器 IC SYNC BIN U/D COUNTER RoHS:否 制造商:NXP Semiconductors 計數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計數(shù)法: 計數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| 74HCT191D,652 | 功能描述:計數(shù)器 IC SYNC BIN U/D COUNTER RoHS:否 制造商:NXP Semiconductors 計數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計數(shù)法: 計數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| 74HCT191D,653 | 功能描述:計數(shù)器 IC SYNC BIN U/D COUNTER RoHS:否 制造商:NXP Semiconductors 計數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計數(shù)法: 計數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| 74HCT191D-T | 功能描述:計數(shù)器 IC SYNC BIN U/D COUNTER RoHS:否 制造商:NXP Semiconductors 計數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計數(shù)法: 計數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| 74HCT191N | 功能描述:計數(shù)器 IC SYNC BIN U/D COUNTER RoHS:否 制造商:NXP Semiconductors 計數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計數(shù)法: 計數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
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