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參數(shù)資料
| 型號(hào)： | HD74HC4520 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Dual BCD Use Converters/Dual Binary Up Converters |
| 中文描述： | 使用雙BCD碼轉(zhuǎn)換器/上變頻器雙二進(jìn)制 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 59K |
| 代理商： | HD74HC4520 |
HD74HC4518/HD74HC4520
Dual BCD Use Converters/Dual Binary Up Converters
Description
The HD74HC4518 dual BCD counter and the HD74HC4520 dual binary counter consist of two identical,
independent, internally synchronous 4-stage counters. The counter stages are type D flip-flops, with
interchangeable Clock and Enable lines for incrementing on either the positive-going or negative-going
transition as required when cascading multiple stages. Each counter can be cleared by applying a high
level on the Reset line. In addition, the HD74HC4518 will count out of all undefined states within two
clock periods. These complementary MOS up counters find primary use in multi-stage synchronous or
ripple counting applications requiring low power dissipation and/or high noise immunity.
Features
High Speed Operation
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: V
CC
= 2 to 6 V
Low Input Current: 1 μA max
Low Quiescent Supply Current: I
CC
(static) = 4 μA max (Ta = 25°C)
Function Table
Clock
Enable
Reset
Operation
H
L
Increment counter
L
L
Increment counter
X
L
No change
X
L
No change
L
L
No change
H
L
No change
X
X
H
Q
0
to Q
3
= L
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD74HC4538 | Dual Precision Retriggerable/Resettable Monostable Multivibrators |
| HD74HC4543 | BCD-to-Seven Segment Latch/Decoder/Driver |
| HD74HC490 | Dual 4-bit Decade Counters |
| HD74HC51 | 2-wide 2-input, 2-wide 3-input AND-OR-INVERT Gate |
| HD74HC533 | Octal D-type Flip-Flops With Clear 20-CDIP -55 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD74HC4520FP | 制造商:Renesas Electronics Corporation 功能描述:Counter Dual 4-Bit Binary UP 16-Pin SOP |
| HD74HC4520P | 制造商:Renesas Electronics 功能描述:74HC Dual Binary up Counter Bulk |
| HD74HC4538FP(E) | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HC4538P-E | 制造商:Renesas Electronics 功能描述:74HC Dual Precision Mono Multivibrator |
| HD74HC4543FP-E | 制造商:Renesas Electronics Corporation 功能描述: |
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