CD4045B CMOS 21 级计数器
CD4045B is a timing circuit consisting of 21 counter stages, two output-shaping flip-flops, two inverter output drivers, and input inverters for use in a crystal oscillator. The CD4045B configuration provides 21 flip-flop counting stages, and two flip-flops for shaping the output waveform for a 3.125% duty cycle. Push-pull operation is provided by the inverter output drivers.
The first inverter is intended for use as a crystal oscillator/amplifier. However, it may be used as a normal logic inverter if desired. A crystal oscillator circuit can be made less sensitive to voltage-supply variations by the user of source resistors. In this device, the sources of the p and n transistors have been brought out to package terminals
|
CD4045B |
| Voltage Nodes(V) |
5, 10, 15 |
| Vcc range(V) |
3.0 to 18.0 |
| Input Level |
CMOS |
| Output Level |
CMOS |
| Rating |
Catalog |
| Technology Family |
CD4000 |
CD4045B 特性
- Very low operating dissipation . . . . . <1 mW (typ.) @ VDD = 5 V, f
= 1 MHz
- Output drivers with sink or source capability . . . . . 7 mA (typ.) @ VDD = 5 V
- Medium speed (typ.) . . . f = 25 MHz @ VDD = 10 V
- 100% tested for quiescent current at 20 V
- 5-V, 10-V, and 15-V parametric ratings
- Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices"
- Applications
- Digital equipment in which ultra-low dissipation and/or operation using a battery source is required.
- Accurate timing from a crystal oscillator for timing applications such as wall clocks, table clocks, automobile clocks, and digital timing references in any circuit requiring accurately timed outputs at various intervals in the counting sequence.
- Driving miniature synchronous motors, stepping motors, or external bipolar transistors in push-pull fashion
CD4045B 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 |
| CD4045BE |
ACTIVE |
-55 to 125 |
1.20 | 1ku |
PDIP (N) | 16 |
25 | TUBE |
|
| CD4045BEE4 |
ACTIVE |
-55 to 125 |
1.20 | 1ku |
PDIP (N) | 16 |
25 | TUBE |
|
| CD4045BNSR |
ACTIVE |
-55 to 125 |
1.15 | 1ku |
SO (NS) | 16 |
2000 | LARGE T&R |
|
| CD4045BNSRE4 |
ACTIVE |
-55 to 125 |
1.15 | 1ku |
SO (NS) | 16 |
2000 | LARGE T&R |
|
| CD4045BNSRG4 |
ACTIVE |
-55 to 125 |
1.15 | 1ku |
SO (NS) | 16 |
2000 | LARGE T&R |
|
| CD4045BPWR |
ACTIVE |
-55 to 125 |
1.20 | 1ku |
TSSOP (PW) | 16 |
90 | TUBE |
|
| CD4045BPWRE4 |
ACTIVE |
-55 to 125 |
1.20 | 1ku |
TSSOP (PW) | 16 |
90 | TUBE |
|
| CD4045BPWRG4 |
ACTIVE |
-55 to 125 |
1.20 | 1ku |
TSSOP (PW) | 16 |
90 | TUBE |
|
CD4045B 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 |
| CD4045BE |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
CD4045BE |
CD4045BE |
| CD4045BEE4 |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
CD4045BEE4 |
CD4045BEE4 |
| CD4045BNSR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD4045BNSR |
CD4045BNSR |
| CD4045BNSRE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD4045BNSRE4 |
CD4045BNSRE4 |
| CD4045BPWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD4045BPWR |
CD4045BPWR |
| CD4045BPWRE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD4045BPWRE4 |
CD4045BPWRE4 |
| CD4045BPWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD4045BPWRG4 |
CD4045BPWRG4 |
CD4045B 应用技术支持与电子电路设计开发资源下载
- CD4045B 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)