- 您現在的位置：買賣IC網 > PDF目錄380214 > CY7C428-65PC (CYPRESS SEMICONDUCTOR CORP) 256/512/1K/2K/4K x 9 Asynchronous FIFO PDF資料下載
參數資料
| 型號： | CY7C428-65PC |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | DRAM |
| 英文描述： | 256/512/1K/2K/4K x 9 Asynchronous FIFO |
| 中文描述： | 2K X 9 OTHER FIFO, 65 ns, PDIP28 |
| 封裝： | 0.600 INCH, DIP-28 |
| 文件頁數： | 1/22頁 |
| 文件大小： | 522K |
| 代理商： | CY7C428-65PC |
256/512/1K/2K/4K x 9 Asynchronous FIFO
CY7C419/21/25/29/33
Cypress Semiconductor Corporation
Document #: 38-06001 Rev. *A
3901 North First Street
San Jose
CA 95134
Revised December 30, 2002
408-943-2600
19/21/25/29/
Features
Asynchronous first-in first-out (FIFO) buffer memories
256 x 9 (CY7C419)
512 x 9 (CY7C421)
1K x 9 (CY7C425)
2K x 9 (CY7C429)
4K x 9 (CY7C433)
Dual-ported RAM cell
High-speed 50.0-MHz read/write independent of
depth/width
Low operating power: I
CC
= 35 mA
Empty and Full flags (Half Full flag in standalone)
TTL compatible
Retransmit in standalone
Expandable in width
PLCC, 7x7 TQFP, SOJ, 300-mil and 600-mil DIP
Pin compatible and functionally equivalent to IDT7200,
IDT7201, IDT7202, IDT7203, IDT7204, AM7200, AM7201,
AM7202, AM7203, and AM7204
Functional Description
The CY7C419, CY7C420/1, CY7C424/5, CY7C428/9, and
CY7C432/3 are first-in first-out (FIFO) memories offered in
600-mil wide and 300-mil wide packages. They are, respec-
tively, 256, 512, 1,024, 2,048, and 4,096 words by 9-bits wide.
Each FIFO memory is organized such that the data is read in
the same sequential order that it was written. Full and Empty
flags are provided to prevent overrun and underrun. Three ad-
ditional pins are also provided to facilitate unlimited expansion
in width, depth, or both. The depth expansion technique steers
the control signals from one device to another in parallel, thus
eliminating the serial addition of propagation delays, so that
throughput is not reduced. Data is steered in a similar manner.
The read and write operations may be asynchronous; each
can occur at a rate of 50.0 MHz. The write operation occurs
when the write (W) signal is LOW. Read occurs when read (R)
goes LOW. The nine data outputs go to the high-impedance
state when R is HIGH.
A Half Full (HF) output flag is provided that is valid in the stan-
dalone and width expansion configurations. In the depth ex-
pansion configuration, this pin provides the expansion out
(XO) information that is used to tell the next FIFO that it will be
activated.
In the standalone and width expansion configurations, a LOW
on the retransmit (RT) input causes the FIFOs to retransmit
the data. Read enable (R) and write enable (W) must both be
HIGH during retransmit, and then R is used to access the data.
The CY7C419, CY7C420, CY7C421, CY7C424, CY7C425,
CY7C428, CY7C429, CY7C432, and CY7C433 are fabricated
using an advanced 0.65-micron P-well CMOS technology. In-
put ESD protection is greater than 2000V and latch-up is pre-
vented by careful layout and guard rings.
相關PDF資料 |
PDF描述 |
|---|---|
| CY7C4251V-15AC | CONNECTOR ACCESSORY |
| CY7C4201V | Low-Voltage 64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs |
| CY7C4201V-15AC | Low-Voltage 64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs |
| CY7C4201V-25AC | Low-Voltage 64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs |
| CY7C4211V | Low-Voltage 64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CY7C429 WAF | 制造商:Cypress Semiconductor 功能描述: |
| CY7C429-10ACT | 制造商:Cypress Semiconductor 功能描述: |
| CY7C429-10AXC | 功能描述:先進先出 2Kx9 .300" PARALLEL CASCADEABLE 先進先出 COM RoHS:否 制造商:IDT 電路數量: 數據總線寬度:18 bit 總線定向:Unidirectional 存儲容量:4 Mbit 定時類型:Synchronous 組織:256 K x 18 最大時鐘頻率:100 MHz 訪問時間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝: |
| CY7C429-10AXCT | 功能描述:先進先出 2Kx9 .300" PARALLEL CASCADEABLE 先進先出 COM RoHS:否 制造商:IDT 電路數量: 數據總線寬度:18 bit 總線定向:Unidirectional 存儲容量:4 Mbit 定時類型:Synchronous 組織:256 K x 18 最大時鐘頻率:100 MHz 訪問時間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝: |
| CY7C429-10JC | 制造商:Cypress Semiconductor 功能描述:FIFO Mem Async Dual Depth/Width Uni-Dir 2K x 9 32-Pin PLCC |
發布緊急采購，3分鐘左右您將得到回復。