SN74ALS29821 具有三态输出的 10 位总线接口触发器
These 10-bit edge-triggered D-type flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. These devices are particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers.
On the positive transition of the clock (CLK) input, the Q outputs are true to the data (D) input.
A buffered output-enable (
) input can place the ten outputs in either a normal logic state (high or low logic levels) or a high-impedance state. The outputs also are in the high-impedance state during power-up and power-down conditions. The outputs remain in the high-impedance state while the device is powered down
| SN74ALS29821 | |
| Voltage Nodes(V) | 5 |
| Rating | Catalog |
SN74ALS29821 特性
- Functionally Equivalent to AMD's AM29821
- Provide Extra Data Width Necessary for Wider Address/Data Paths or Buses With Parity
- Outputs Have Undershoot-Protection Circuitry
- Power-Up High-Impedance State
- Buffered Control Inputs Reduce dc Loading Effects
- Package Options Include Plastic Small-Outline (DW) Packages and Standard Plastic (NT) and Ceramic (JT) 300-mil DIPs
SN74ALS29821 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 |
| SN74ALS29821DBLE | OBSOLETE | -40 to 85 | SSOP (DB) | 24 | |||
| SN74ALS29821DBR | ACTIVE | -40 to 85 | 0.44 | 1ku | SSOP (DB) | 24 | 2000 | LARGE T&R | |
| SN74ALS29821DBRE4 | ACTIVE | -40 to 85 | 0.44 | 1ku | SSOP (DB) | 24 | 2000 | LARGE T&R | |
| SN74ALS29821DBRG4 | ACTIVE | -40 to 85 | 0.44 | 1ku | SSOP (DB) | 24 | 2000 | LARGE T&R | |
| SN74ALS29821DW | ACTIVE | -40 to 85 | 0.48 | 1ku | SOIC(DW) | 24 | 25 | TUBE | |
| SN74ALS29821DWE4 | ACTIVE | -40 to 85 | 0.48 | 1ku | SOIC(DW) | 24 | 25 | TUBE | |
| SN74ALS29821DWG4 | ACTIVE | -40 to 85 | 0.48 | 1ku | SOIC(DW) | 24 | 25 | TUBE | |
| SN74ALS29821DWR | ACTIVE | -40 to 85 | 0.40 | 1ku | SOIC(DW) | 24 | 2000 | LARGE T&R | |
| SN74ALS29821DWRE4 | ACTIVE | -40 to 85 | 0.40 | 1ku | SOIC(DW) | 24 | 2000 | LARGE T&R | |
| SN74ALS29821DWRG4 | ACTIVE | -40 to 85 | 0.40 | 1ku | SOIC(DW) | 24 | 2000 | LARGE T&R | |
| SN74ALS29821N | ACTIVE | -40 to 85 | 0.44 | 1ku | PDIP (N) | 24 | 20 | TUBE | |
| SN74ALS29821NE4 | ACTIVE | -40 to 85 | 0.44 | 1ku | PDIP (N) | 24 | 20 | TUBE | |
| SN74ALS29821NSR | ACTIVE | -40 to 85 | 0.44 | 1ku | SO (NS) | 24 | 2000 | LARGE T&R | |
| SN74ALS29821NSRE4 | ACTIVE | -40 to 85 | 0.44 | 1ku | SO (NS) | 24 | 2000 | LARGE T&R | |
| SN74ALS29821NSRG4 | ACTIVE | -40 to 85 | 0.44 | 1ku | SO (NS) | 24 | 2000 | LARGE T&R | |
| SN74ALS29821PW | ACTIVE | -40 to 85 | 0.48 | 1ku | TSSOP (PW) | 24 | 70 | TUBE | |
| SN74ALS29821PWE4 | ACTIVE | -40 to 85 | 0.48 | 1ku | TSSOP (PW) | 24 | 70 | TUBE | |
| SN74ALS29821PWG4 | ACTIVE | -40 to 85 | 0.48 | 1ku | TSSOP (PW) | 24 | 70 | TUBE | |
| SN74ALS29821PWLE | OBSOLETE | -40 to 85 | TSSOP (PW) | 24 | |||
| SN74ALS29821PWR | ACTIVE | -40 to 85 | 0.40 | 1ku | TSSOP (PW) | 24 | 2000 | LARGE T&R | |
| SN74ALS29821PWRE4 | ACTIVE | -40 to 85 | 0.40 | 1ku | TSSOP (PW) | 24 | 2000 | LARGE T&R | |
| SN74ALS29821PWRG4 | ACTIVE | -40 to 85 | 0.40 | 1ku | TSSOP (PW) | 24 | 2000 | LARGE T&R |
SN74ALS29821 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 |
| SN74ALS29821DBR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821DBR | SN74ALS29821DBR |
| SN74ALS29821DBRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821DBRE4 | SN74ALS29821DBRE4 |
| SN74ALS29821DBRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821DBRG4 | SN74ALS29821DBRG4 |
| SN74ALS29821DW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821DW | SN74ALS29821DW |
| SN74ALS29821DWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821DWE4 | SN74ALS29821DWE4 |
| SN74ALS29821DWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821DWG4 | SN74ALS29821DWG4 |
| SN74ALS29821DWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821DWR | SN74ALS29821DWR |
| SN74ALS29821DWRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821DWRE4 | SN74ALS29821DWRE4 |
| SN74ALS29821DWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821DWRG4 | SN74ALS29821DWRG4 |
| SN74ALS29821N | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74ALS29821N | SN74ALS29821N |
| SN74ALS29821NE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74ALS29821NE4 | SN74ALS29821NE4 |
| SN74ALS29821NSR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821NSR | SN74ALS29821NSR |
| SN74ALS29821NSRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821NSRE4 | SN74ALS29821NSRE4 |
| SN74ALS29821NSRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821NSRG4 | SN74ALS29821NSRG4 |
| SN74ALS29821PW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821PW | SN74ALS29821PW |
| SN74ALS29821PWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821PWE4 | SN74ALS29821PWE4 |
| SN74ALS29821PWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821PWG4 | SN74ALS29821PWG4 |
| SN74ALS29821PWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821PWR | SN74ALS29821PWR |
| SN74ALS29821PWRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821PWRE4 | SN74ALS29821PWRE4 |
| SN74ALS29821PWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS29821PWRG4 | SN74ALS29821PWRG4 |
SN74ALS29821 应用技术支持与电子电路设计开发资源下载
- SN74ALS29821 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)