CD74HC40103-Q1 汽车类高速 CMOS 逻辑 8 级同步减计数器
The CD74HC40103 is manufactured with high-speed silicon-gate technology and consists of an 8-stage synchronous down counter with a single output, which is active when the internal count is zero. The device contains a single 8-bit binary counter. Each device has control inputs for enabling or disabling the clock, for clearing the counter to its maximum count, and for presetting the counter either synchronously or asynchronously. All control inputs and the terminal count (TC) output are active-low logic.
In normal operation, the counter is decremented by one count on each positive transition of the clock (CP) output. Counting is inhibited when the terminal enable (TE) input is high. (TC) goes low when the count reaches zero, if (TE) is low, and remains low for one full clock period.
When the synchronous preset enable ( PE) input is low, data at the P0-P7 inputs are clocked into the counter on the next positive clock transition, regardless of the state of (TE). When the asynchronous preset enable (PL) input is low, data at the P0-P7 inputs asynchronously are forced into the counter, regardless of the state of the PE, TE, or CP inputs. Inputs P0-P7 represent a single 8-bit binary word for the CD74HC40103. When the master reset (MR) input is low, the counter asynchronously is cleared to its maximum count of 25510, regardless of the state of any other input. The precedence relationship between control inputs is indicated in the truth table.
If all control inputs except TE are high at the time of zero count, the counters jump to the maximum count, giving a counting sequence of 10016 or 25610 clock pulses long.
The CD74HC40103 may be cascaded using the TE input and the TC output, in either synchronous or ripple mode. These circuits have the low power consumption usually associated with CMOS circuitry, yet have speeds comparable to low-power Schottky TTL circuits and can drive up to ten LSTTL loads
| CD74HC40103-Q1 | |
| Rating | Automotive |
| Technology Family | HC |
CD74HC40103-Q1 特性
- Qualified for Automotive Applications
- Synchronous or Asynchronous Preset
- Cascadable in Synchronous or Ripple Mode
- Fanout (Over Temperature Range)
- Standard Outputs . . . 10 LSTTL Loads
- Bus Driver Outputs . . . 15 LSTTL Loads
- Balanced Propagation Delay and Transition Times
- Significant Power Reduction Compared to LSTTL Logic ICs
- VCC Voltage = 2 V to 6 V
- High Noise Immunity NIL or NIH = 30% of VCC, VCC = 5 V
CD74HC40103-Q1 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 |
| CD74HC40103QM96Q1 | ACTIVE | -40 to 125 | 0.80 | 1ku | SOIC (DW) | 16 | 2500 | |
| HC40103QM96G4Q1 | ACTIVE | -40 to 125 | 0.80 | 1ku | SOIC (DW) | 16 | 2500 |
CD74HC40103-Q1 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 |
| CD74HC40103QM96Q1 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CD74HC40103QM96Q1 | CD74HC40103QM96Q1 |
| HC40103QM96G4Q1 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | HC40103QM96G4Q1 | HC40103QM96G4Q1 |
CD74HC40103-Q1 应用技术支持与电子电路设计开发资源下载
- CD74HC40103-Q1 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)