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參數(shù)資料
| 型號： | HCC4555BD |
| 英文描述： | Logic IC |
| 中文描述： | 邏輯IC |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 237K |
| 代理商： | HCC4555BD |
HCC4521B
HCF4521B
September 1990
24 - STAGE FREQUENCY DIVIDER
PRODUCT PREVIEW
EY
(Plastic Package)
.
VERY LOW QUIESCENT CURRENT
.
HIGH NOISE IMMUNITY
.
VOLTAGE SUPPLY RANGE3V TO 18V
.
ALL STAGES ARE RESETTABLE
.
RESETDISABLES THERCOSCILLATOR FOR
LOW STANDBYPOWER DRAIN
.
RC AND CRYSTAL OSCILLATOR OUTPUT
ARE CAPABLE
OF DRIVING EXTERNAL
LOADS
ORDER CODES :
HCC4521 BF
HCF4521 BEY
HCF4521 BM1
HCF4521 BC1
F
(Ceramic FritSeal Package)
M1
(Micro Package)
C1
(Plastic Chip Carrier)
The HCC4521B and HCF4521B are monolithic in-
tegrated circuits, available in 16-lead dual-in-line
plasticorceramic packages and plasticmicro pack-
ages.
The HCC4521B and HCF4521B have a chain of 24
flip-flopswithan inputcircuitthatallowsthreemodes
of operation. The input circuit functions as a crystal
or an RC oscillator or as an input buffer for an ex-
ternaloscillator. Each flip-flop preforms a divide-by-
two function giving a total count of 2
24
= 16, 777,
216. The count advances on the negative going
edge of the clock. Access is available to the final
seven stages giving the device added flexibility.
DESCRIPTION
PIN CONNECTION
(top view)
1/6
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HCC4555BK | Logic IC |
| HCC4556BD | Logic IC |
| HCC4556BK | Logic IC |
| HCF4532BE | Encoder |
| HCF4532BF | Encoder |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HCC4555BEY | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DUAL BINARY TO 1 OF 4 DECODER/DEMULTIPLEXERS |
| HCC4555BF | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DUAL BINARY TO 1 OF 4 DECODER/DEMULTIPLEXERS |
| HCC4555BK | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Logic IC |
| HCC4555BM1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DUAL BINARY TO 1 OF 4 DECODER/DEMULTIPLEXERS |
| HCC4556B | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DUAL BINARY TO 1 OF 4 DECODER/DEMULTIPLEXERS |
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