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參數(shù)資料
| 型號： | DM7490A |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | Decade and Binary Counters(十進(jìn)制和二進(jìn)制計數(shù)器) |
| 中文描述： | 十年二進(jìn)制計數(shù)器（十進(jìn)制和二進(jìn)制計數(shù)器） |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 47K |
| 代理商： | DM7490A |
2000 Fairchild Semiconductor Corporation
DS006533
www.fairchildsemi.com
August 1986
Revised March 2000
D
DM7490A
Decade and Binary Counters
General Description
The DM7490A monolithic counter contains four master-
slave flip-flops and additional gating to provide a divide-by-
two counter and a three-stage binary counter for which the
count cycle length is divide-by-five.
The counter has a gated zero reset and also has gated set-
to-nine inputs for use in BCD nine’s complement applica-
tions.
To use the maximum count length (decade or four-bit
binary), the B input is connected to the Q
A
output. The
input count pulses are applied to input A and the outputs
are as described in the appropriate Function Table. A sym-
metrical divide-by-ten count can be obtained from the
counters by connecting the Q
D
output to the A input and
applying the input count to the B input which gives a divide-
by-ten square wave at output Q
A
.
Features
I
Typical power dissipation
145 mW
I
Count frequency 42 MHz
Ordering Code:
Connection Diagram
Order Number
DM7490AN
Package Number
N14A
Package Description
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DM7490AN | Decade and Binary Counters |
| DM74ALS00 | Quad 2-Input NAND Gate |
| DM74ALS00AM | Quad 2-Input NAND Gate |
| DM74ALS00AN | Low-Offset Voltage Operational Amplifier 8-SOIC 0 to 70 |
| DM74ALS00ASJ | Low-Offset Voltage Operational Amplifier 8-SOIC 0 to 70 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM7490A DIE | 制造商:Texas Instruments 功能描述: |
| DM7490AJ/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Asynchronous Up Counter |
| DM7490AN | 功能描述:計數(shù)器 IC 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 |
| DM7490AN/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Asynchronous Up Counter |
| DM7490AN/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Asynchronous Up Counter |
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