SN74ABT16821 具有三态输出的 20 位总线接口触发器
These 20-bit flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers.
The 'ABT16821 can be used as two 10-bit flip-flops or one 20-bit flip-flop. The 20 flip-flops are edge-triggered D-type flip-flops. On the positive transition of the clock (CLK) input, the device provides true data at the Q outputs.
A buffered output-enable (
) input can be used to place the ten outputs in either a normal logic state (high or low logic level) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly
| SN74ABT16821 | |
| Voltage Nodes(V) | 5 |
| Rating | Catalog |
SN74ABT16821 特性
- Members of the Texas Instruments WidebusTM Family
- State-of-the-Art EPIC-IIBTM BiCMOS Design Significantly Reduces Power Dissipation
- ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
- Typical VOLP (Output Ground Bounce) < 1 V at VCC = 5 V, TA = 25°C
- Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise
- Flow-Through Architecture Optimizes PCB Layout
- High-Drive Outputs (-32-mA IOH, 64-mA IOL)
- Package Options Include Plastic Thin Shrink Small-Outline (DGG), 300-mil Shrink Small-Outline (DL) Packages and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center Spacings
SN74ABT16821 芯片订购指南
| 器件 | 状态 | 温度 | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| SN74ABT16821DGGR | ACTIVE | -40 to 85 | 2.86 | 1ku | TSSOP (DGG) | 56 | 2000 | LARGE T&R | |
| SN74ABT16821DL | ACTIVE | -40 to 85 | 2.86 | 1ku | SSOP (DL) | 56 | 20 | TUBE | |
| SN74ABT16821DLG4 | ACTIVE | -40 to 85 | 2.86 | 1ku | SSOP (DL) | 56 | 20 | TUBE | |
| SN74ABT16821DLR | ACTIVE | -40 to 85 | 2.86 | 1ku | SSOP (DL) | 56 | 1000 | LARGE T&R |
SN74ABT16821 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 |
| SN74ABT16821DGGR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ABT16821DGGR | SN74ABT16821DGGR |
| SN74ABT16821DL | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ABT16821DL | SN74ABT16821DL |
| SN74ABT16821DLG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ABT16821DLG4 | SN74ABT16821DLG4 |
| SN74ABT16821DLR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ABT16821DLR | SN74ABT16821DLR |
SN74ABT16821 应用技术支持与电子电路设计开发资源下载
- SN74ABT16821 数据资料 dataSheet 下载.PDF
- TI 德州仪器触发器/锁存器/寄存器产品选型与价格 . xls
- 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)