參數(shù)資料
型號(hào)： CY7C432-25PC
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： 4K X 9 OTHER FIFO, 25 ns, PDIP28
封裝： 0.600 INCH, DIP-28
文件頁(yè)數(shù)： 1/22頁(yè)
文件大小： 522K
代理商： CY7C432-25PC
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(guān)PDF資料
PDF描述
CY7C432-40PC 256/512/1K/2K/4K x 9 Asynchronous FIFO
CY7C424-65PC 256/512/1K/2K/4K x 9 Asynchronous FIFO
CY7C428-20PC 256/512/1K/2K/4K x 9 Asynchronous FIFO
CY7C428-25DMB 256/512/1K/2K/4K x 9 Asynchronous FIFO
CY7C428-65PC 256/512/1K/2K/4K x 9 Asynchronous FIFO
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
cy7c432-30pc 制造商:Rochester Electronics LLC 功能描述:
CY7C432-65PC 制造商:Rochester Electronics LLC 功能描述:- Bulk
CY7C432-65PI 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Cypress Semiconductor 功能描述:
CY7C433-10AC 制造商:Cypress Semiconductor 功能描述:
CY7C433-10AXC 功能描述:IC ASYNC FIFO MEM 4KX9 32-TQFP RoHS:是 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:CY7C 標(biāo)準(zhǔn)包裝:15 系列:74F 功能:異步 存儲(chǔ)容量:256（64 x 4） 數(shù)據(jù)速率:- 訪問時(shí)間:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:24-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:24-PDIP 包裝:管件 其它名稱:74F433
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