SN74LS161A 同步 4 位二进制计数器
These synchronous, presettable counters feature an internal carry look-ahead for application in high-speed counting designs. The '160, '162, 'LS160A, 'LS162A, and 'S162 are decade counters and the '161, '163, 'LS161A, 'LS163A, and 'S163 are 4-bit binary counters. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the count-enable inputs and internal gating. This mode of operation eliminates the output counting spikes that are normally associated with asynchronous (ripple clock) counters, however counting spikes may occur on the (RCO) ripple carry output. A buffered clock input triggers the four flip-flops on the rising edge of the clock input waveform.
SN74LS161A 特性
- Internal Look-Ahead for Fast Counting
- Carry Output for n-Bit Cascading
- Synchronous Counting
- Synchronously Programmable
- Load Control Line
- Diode-Clamped Inputs
SN74LS161A 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 |
| SN74LS161AD |
ACTIVE |
0 to 70 |
0.40 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
|
| SN74LS161ADE4 |
ACTIVE |
0 to 70 |
0.40 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
|
| SN74LS161ADG4 |
ACTIVE |
0 to 70 |
0.40 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
|
| SN74LS161ADR |
ACTIVE |
0 to 70 |
0.33 | 1ku |
SOIC (D) | 16 |
2500 | LARGE T&R |
|
| SN74LS161ADRE4 |
ACTIVE |
0 to 70 |
0.33 | 1ku |
SOIC (D) | 16 |
2500 | LARGE T&R |
|
| SN74LS161ADRG4 |
ACTIVE |
0 to 70 |
0.33 | 1ku |
SOIC (D) | 16 |
2500 | LARGE T&R |
|
| SN74LS161AN |
ACTIVE |
0 to 70 |
0.35 | 1ku |
PDIP (N) | 16 |
25 | TUBE |
|
| SN74LS161ANE4 |
ACTIVE |
0 to 70 |
0.35 | 1ku |
PDIP (N) | 16 |
25 | TUBE |
|
SN74LS161A 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 |
| SN74LS161AD |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74LS161AD |
SN74LS161AD |
| SN74LS161ADE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74LS161ADE4 |
SN74LS161ADE4 |
| SN74LS161ADG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74LS161ADG4 |
SN74LS161ADG4 |
| SN74LS161ADR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74LS161ADR |
SN74LS161ADR |
| SN74LS161ADRE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74LS161ADRE4 |
SN74LS161ADRE4 |
| SN74LS161ADRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74LS161ADRG4 |
SN74LS161ADRG4 |
| SN74LS161AN |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
SN74LS161AN |
SN74LS161AN |
| SN74LS161ANE4 |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
SN74LS161ANE4 |
SN74LS161ANE4 |
SN74LS161A 应用技术支持与电子电路设计开发资源下载
- SN74LS161A 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)