SN74AS161 同步 4 位二进制计数器
These synchronous, presettable, 4-bit decade and binary counters feature an internal carry look-ahead circuitry for application in high-speed counting designs. The SN54ALS162B is a 4-bit decade counter. The \x92ALS161B, \x92ALS163B, \x92AS161, and \x92AS163 devices are 4-bit binary counters. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincidentally with each other when instructed by the count-enable (ENP, ENT) inputs and internal gating. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple-clock) counters. A buffered clock (CLK) input triggers the four flip-flops on the rising (positive-going) edge of the clock input waveform.
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SN74AS161 |
| Rating |
Catalog |
| Technology Family |
AS |
SN74AS161 特性
- Internal Look-Ahead Circuitry for Fast Counting
- Carry Output for n-Bit Cascading
- Synchronous Counting
- Synchronously Programmable
- Package Options Include Plastic Small-Outline (D) and Shrink Small-Outline (DB) Packages, Ceramic Chip Carriers (FK), Standard Plastic (N) and Ceramic (J) DIPs
SN74AS161 芯片订购指南
| 器件 |
状态 |
温度 |
价格 |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| SN74AS161N |
ACTIVE |
0 to 70 |
3.15 | 1ku |
PDIP (N) | 16 |
25 | TUBE |
|
| SN74AS161NE4 |
ACTIVE |
0 to 70 |
3.15 | 1ku |
PDIP (N) | 16 |
25 | TUBE |
|
| SN74AS161NSR |
ACTIVE |
0 to 70 |
3.15 | 1ku |
SO (NS) | 16 |
2000 | LARGE T&R |
|
| SN74AS161NSRE4 |
ACTIVE |
0 to 70 |
3.15 | 1ku |
SO (NS) | 16 |
2000 | LARGE T&R |
|
| SN74AS161NSRG4 |
ACTIVE |
0 to 70 |
3.15 | 1ku |
SO (NS) | 16 |
2000 | LARGE T&R |
|
SN74AS161 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| SN74AS161N |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
SN74AS161N |
SN74AS161N |
| SN74AS161NE4 |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
SN74AS161NE4 |
SN74AS161NE4 |
| SN74AS161NSR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74AS161NSR |
SN74AS161NSR |
| SN74AS161NSRE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74AS161NSRE4 |
SN74AS161NSRE4 |
| SN74AS161NSRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74AS161NSRG4 |
SN74AS161NSRG4 |
SN74AS161 应用技术支持与电子电路设计开发资源下载
- SN74AS161 数据资料 dataSheet 下载.PDF
- TI 德州仪器MSI 功能产品选型与价格 . xls
- Logic Guide 2009 (PDF 4263 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
- Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
- TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
- Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
- CMOS Power Consumption and CPD Calculation (PDF 89 KB)
- Designing With Logic (PDF 186 KB)
- Live Insertion (PDF 150 KB)
- Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
- Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- LOGIC Pocket Data Book (PDF 6001 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- Logic Cross-Reference (PDF 2938 KB)
