SN74ABT7820 512 x 18 x 2 双向异步 FIFO 存储器
A FIFO memory is a storage device that allows data to be written into and read from its array at independent data rates. The SN74ABT7820
is arranged as two 512 × 18-bit FIFOs for high speed and fast access times. It processes data at rates up to 67 MHz with access times of 12 ns in a bit-parallel format.
The SN74ABT7820 consists of bus-transceiver circuits, two 512 × 18 FIFOs, and control circuitry arranged for multiplexed transmission of data directly from the data bus or from the internal FIFO memories. Enable inputs (GAB and GBA) control the transceiver functions. The SAB and SBA control inputs select whether real-time or stored data is transferred. The circuitry used for select control eliminates the typical decoding glitch that occurs in a multiplexer during the transition between stored and real-time data
|
SN54ABT7820 |
SN74ABT7820 |
| Depth |
512 |
512 |
| Width |
18 |
18 |
| Fmax(MHz) |
40 |
67 |
| Sync/Async |
A |
A |
| Voltage Nodes(V) |
5 |
5 |
| Vcc range(V) |
4.5 to 5.5 |
4.5 to 5.5 |
| Output Drive(mA) |
|
-12/24 |
| Rating |
Military |
Catalog |
| Technology Family |
ABT |
ABT |
SN74ABT7820 特性
- Member of the Texas Instruments Widebus™ Family
- Advanced BiCOMS Technology
- Released as DSCC SMD (Standard Microcircuit Drawing) 5962-9650901QXA
- Independent Asynchronous Inputs and Outputs
- Two Separate 512 × 18 FIFOs Buffering Data in Opposite Directions
- Programmable Almost-Full/Almost-Empty Flag
- Empty, Full, and Half-Full Flags
- Fast Access Times of 12 ns With a 50-pF Load and Simultanious Switching Data Outputs
- Packaged in 84-Pin Ceramic Pin Grid Array
SN74ABT7820 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 |
| 1O7820-15PNG4 |
ACTIVE |
0 to 70 |
15.80 | 1ku |
LQFP (PN) | 80 |
119 | JEDEC TRAY (10+1) |
|
| 1O7820-20PNG4 |
ACTIVE |
0 to 70 |
15.80 | 1ku |
LQFP (PN) | 80 |
119 | JEDEC TRAY (10+1) |
|
| SN74ABT7820-15PH |
ACTIVE |
0 to 70 |
15.80 | 1ku |
QFP (PH) | 80 |
66 | JEDEC TRAY (10+1) |
|
| SN74ABT7820-15PN |
ACTIVE |
0 to 70 |
15.80 | 1ku |
LQFP (PN) | 80 |
119 | JEDEC TRAY (10+1) |
|
| SN74ABT7820-20PH |
ACTIVE |
0 to 70 |
15.80 | 1ku |
QFP (PH) | 80 |
66 | JEDEC TRAY (10+1) |
|
| SN74ABT7820-20PN |
ACTIVE |
0 to 70 |
15.80 | 1ku |
LQFP (PN) | 80 |
119 | JEDEC TRAY (10+1) |
|
| SN74ABT7820-25PH |
ACTIVE |
0 to 70 |
14.04 | 1ku |
QFP (PH) | 80 |
66 | JEDEC TRAY (10+1) |
|
| SN74ABT7820-30PH |
ACTIVE |
0 to 70 |
13.61 | 1ku |
QFP (PH) | 80 |
66 | JEDEC TRAY (10+1) |
|
| SN74ABT7820-30PN |
ACTIVE |
0 to 70 |
13.61 | 1ku |
LQFP (PN) | 80 |
119 | JEDEC TRAY (10+1) |
|
SN74ABT7820 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 |
| 1O7820-15PNG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
1O7820-15PNG4 |
1O7820-15PNG4 |
| 1O7820-20PNG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
1O7820-20PNG4 |
1O7820-20PNG4 |
| SN74ABT7820-15PH |
TBD |
A42 |
Level-3-220C-168 HR |
SN74ABT7820-15PH |
SN74ABT7820-15PH |
| SN74ABT7820-15PN |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
SN74ABT7820-15PN |
SN74ABT7820-15PN |
| SN74ABT7820-20PH |
TBD |
A42 |
Level-3-220C-168 HR |
SN74ABT7820-20PH |
SN74ABT7820-20PH |
| SN74ABT7820-20PN |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
SN74ABT7820-20PN |
SN74ABT7820-20PN |
| SN74ABT7820-25PH |
TBD |
A42 |
Level-3-220C-168 HR |
SN74ABT7820-25PH |
SN74ABT7820-25PH |
| SN74ABT7820-30PH |
TBD |
A42 |
Level-3-220C-168 HR |
SN74ABT7820-30PH |
SN74ABT7820-30PH |
| SN74ABT7820-30PN |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
SN74ABT7820-30PN |
SN74ABT7820-30PN |
SN74ABT7820 应用技术支持与电子电路设计开发资源下载
- SN74ABT7820 数据资料 dataSheet 下载.PDF
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