SN74ACT7803 512 x 18 同步 FIFO 存储器
The SN74ACT7803 is a 512-word × 18-bit FIFO suited for buffering asynchronous datapaths up to 67-MHz clock rates and 12-ns access times. Two devices can be configured for bidirectional data buffering without additional logic. Multiple distributed VCC and GND pins, along with Texas Instruments patented output edge control (OECTM) circuit, dampen simultaneous switching noise.
The write clock (WRTCLK) and read clock (RDCLK) are free running and can be asynchronous or coincident. Data is written to memory on the rising edge of WRTCLK when WRTEN1 is high, WRTEN2\ is low, and input ready (IR) is high. Data is read from memory on the rising edge of RDCLK when RDEN\, OE1\, and OE2\ are low and output ready (OR) is high
|
SN74ACT7803 |
| Depth |
512 |
| Width |
18 |
| Fmax(MHz) |
67 |
| Sync/Async |
S |
| Voltage Nodes(V) |
5 |
| Technology Family |
ACT |
| Output Drive(mA) |
-8/16 |
| Rating |
Catalog |
SN74ACT7803 特性
- Member of the Texas Instruments WidebusTM Family
- Free-Running Read and Write Clocks Can Be Asynchronous or Coincident
- Read and Write Operations Synchronized to Independent System Clocks
- Input-Ready Flag Synchronized to Write Clock
- Output-Ready Flag Synchronized to Read Clock
- 512 Words by 18 Bits
- Low-Power Advanced CMOS Technology
- Half-Full Flag and Programmable Almost-Full/Almost-Empty Flag
- Bidirectional Configuration and Width Expansion Without Additional Logic
- Fast Access Times of 12 ns With a 50-pF Load and All Data Outputs Switching Simultaneously
- Data Rates up to 67 MHz
- Pin-to-Pin Compatible With SN74ACT7805 and SN74ACT7813
- Packaged in Shrink Small-Outline 300-mil Package Using 25-mil Center-to-Center Spacing
SN74ACT7803 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 |
| SN74ACT7803-15DL |
ACTIVE |
0 to 70 |
10.53 | 1ku |
SSOP (DL) | 56 |
20 | TUBE |
|
| SN74ACT7803-15DLR |
ACTIVE |
0 to 70 |
10.53 | 1ku |
SSOP (DL) | 56 |
1000 | LARGE T&R |
|
| SN74ACT7803-20DL |
ACTIVE |
0 to 70 |
5.27 | 1ku |
SSOP (DL) | 56 |
20 | TUBE |
|
| SN74ACT7803-25DL |
ACTIVE |
0 to 70 |
9.02 | 1ku |
SSOP (DL) | 56 |
20 | TUBE |
|
| SN74ACT7803-25DLR |
ACTIVE |
0 to 70 |
5.27 | 1ku |
SSOP (DL) | 56 |
1000 | LARGE T&R |
|
| SN74ACT7803-40DL |
ACTIVE |
0 to 70 |
9.02 | 1ku |
SSOP (DL) | 56 |
20 | TUBE |
|
SN74ACT7803 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 |
| SN74ACT7803-15DL |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74ACT7803-15DL |
SN74ACT7803-15DL |
| SN74ACT7803-15DLR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74ACT7803-15DLR |
SN74ACT7803-15DLR |
| SN74ACT7803-20DL |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74ACT7803-20DL |
SN74ACT7803-20DL |
| SN74ACT7803-25DL |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74ACT7803-25DL |
SN74ACT7803-25DL |
| SN74ACT7803-25DLR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74ACT7803-25DLR |
SN74ACT7803-25DLR |
| SN74ACT7803-40DL |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74ACT7803-40DL |
SN74ACT7803-40DL |
SN74ACT7803 应用技术支持与电子电路设计开发资源下载
- SN74ACT7803 数据资料 dataSheet 下载.PDF
- TI 德州仪器特殊逻辑产品选型与价格 . 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)