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參數(shù)資料
| 型號： | CY7C4205-10AC |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | DRAM |
| 英文描述： | 64/256/512/1K/2K/4K x18 Low-Voltage Synchronous FIFOs |
| 中文描述： | 256 X 18 OTHER FIFO, 8 ns, PQFP64 |
| 封裝： | 14 X 14 MM, PLASTIC, TQFP-64 |
| 文件頁數(shù)： | 16/25頁 |
| 文件大小： | 409K |
| 代理商： | CY7C4205-10AC |
CY7C4425/4205/4215
CY7C4225/4235/4245
16
Depth Expansion Configuration
(with Programmable Flags)
The CY7C42X5 can easily be adapted to applications requir-
ing more than 64/256/512/1024/2048/4096 words of buffering.
Figure2 shows Depth Expansion using three CY7C42X5s. Maxi-
mum depth is limited only by signal loading. Follow these steps:
1. The first device must be designated by grounding the First
Load (FL) control input.
2. All other devices must have FL in the HIGH state.
3. The Write Expansion Out (WXO) pin of each device must be
tied to the Write Expansion In (WXI) pin of the next device.
4. The Read Expansion Out (RXO) pin of each device must be
tied to the Read Expansion In (RXI) pin of the next device.
5. All Load (LD) pins are tied together.
6. The Half-Full Flag (HF) is not available in the Depth Expansion
Configuration.
7. EF, FF, PAE, and PAF are created with composite flags by
ORing together these respective flags for monitoring. The
composite PAE and PAF flags are not precise.
Figure 2. Block Diagram of 192 x 18/768 x 18/1536 x 18/3072 x 18/12288 x 18 Synchronous FIFO Memory
with Programmable Flags used in Depth Expansion Configuration.
42X5–23
WRITECLOCK(WCLK)
WRITE ENABLE(WEN)
RESET(RS)
LOAD(LD)
FF
PAF
PAF
FF
EF
PAE
PAE
EF
WXI RXI
FIRSTLOAD(FL)
READCLOCK(RCLK)
READ ENABLE (REN)
OUTPUT ENABLE(OE)
WXO RXO
7C4425
7C4205
7C4215
7C4225
7C4235
7C4235
PAF
FF
EF
PAE
WXI RXI
WXO RXO
7C4425
7C4205
7C4215
7C4225
7C4235
7C4235
V
CC
FIRSTLOAD(FL)
PAF
FF
EF
PAE
WXI RXI
WXO RXO
7C4425
7C4205
7C4215
7C4225
7C4235
7C4235
V
CC
FIRSTLOAD(FL)
DATAIN (D)
DATAOUT(Q)
相關PDF資料 |
PDF描述 |
|---|---|
| CY7C4205-10AI | 64/256/512/1K/2K/4K x18 Low-Voltage Synchronous FIFOs |
| CY7C4205-10ASC | 64/256/512/1K/2K/4K x18 Low-Voltage Synchronous FIFOs |
| CY7C4205-10ASI | 64/256/512/1K/2K/4K x18 Low-Voltage Synchronous FIFOs |
| CY7C4205-10JC | 64/256/512/1K/2K/4K x18 Low-Voltage Synchronous FIFOs |
| CY7C4205-10JI | 64/256/512/1K/2K/4K x18 Low-Voltage Synchronous FIFOs |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| CY7C4205-10ACT | 制造商:Cypress Semiconductor 功能描述: |
| CY7C4205-10AXC | 功能描述:先進先出 256x18 IDT Compat SYNC 先進先出 COM RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)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: |
| CY7C4205-10AXCT | 功能描述:先進先出 256x18 IDT Compat SYNC 先進先出 COM RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)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: |
| CY7C4205-15AC | 制造商:Cypress Semiconductor 功能描述: |
| CY7C4205-15ACT | 制造商:Cypress Semiconductor 功能描述: |
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