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| 型號(hào)： | DM7490AN |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Decade and Binary Counters |
| 中文描述： | TTL/H/L SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP DECADE COUNTER, PDIP14 |
| 封裝： | 0.300 INCH, PLASTIC, MS-001, DIP-14 |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大小： | 47K |
| 代理商： | DM7490AN |
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 |
|---|---|
| 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 |
| DM74ALS00A | Quad 2-Input NAND Gate(四2輸入與非門) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| DM7491AN | 制造商:Texas Instruments 功能描述: |
| DM7492AJ/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Asynchronous Up Counter |
| DM7492AN | 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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