MC14521B:24-Stage Frequency Divider
The MC14521B consists of a chain of 24 flip-flops with an input circuit that allows three modes of operation. The input will function as a crystal oscillator, an RC oscillator, or as an input buffer for an external oscillator. Each flip-flop divides the frequency of the previous flip-flop by two, consequently this part will count up to 224 = 16,777,216. The count advances on the negative going edge of the clock. The outputs of the last seven-stages are available for added flexibility.
技术特性
- All Stages are Resettable
- Reset Disables the RC Oscillator for Low Standby Power Drain
- RC and Crystal Oscillator Outputs Are Capable of Driving External Loads
- Test Mode to Reduce Test Time
- VDD' and VSS' Pins Brought Out on Crystal Oscillator Inverter to Allow the Connection of External Resistors for Low-Power Operation
- Supply Voltage Range = 3.0 Vdc to 18 Vdc
- Capable of Driving Two Low-power TTL Loads or One Low-power Schottky TTL Load over the Rated Temperature Range.
- Pb-Free Packages are Available
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封装图 MARKING DIAGRAM
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订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| MC14521BCPG |
Lifetime |
|
24-Stage Frequency Divider |
PDIP-16 |
648-08 |
|
Tube |
500 |
$0.44 |
| MC14521BDG |
Active |
|
24-Stage Frequency Divider |
SOIC-16 |
751B-05 |
1 |
Tube |
48 |
$0.4 |
| MC14521BDR2G |
Active |
|
24-Stage Frequency Divider |
SOIC-16 |
751B-05 |
1 |
Tape and Reel |
2500 |
$0.4 |
| NLV14521BDG |
Active |
| AEC Qualified |
| PPAP Capable |
| Pb-free |
| Halide free |
|
24-Stage Frequency Divider |
SOIC-16 |
751B-05 |
1 |
Tube |
48 |
$0.44 |
| NLV14521BDR2G |
Active |
| AEC Qualified |
| PPAP Capable |
| Pb-free |
| Halide free |
|
24-Stage Frequency Divider |
SOIC-16 |
751B-05 |
1 |
Tape and Reel |
2500 |
$0.44 |
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