參數(shù)資料
型號(hào): XC5200SERIES
廠商: Xilinx, Inc.
英文描述: Field Programmable Gate Arrays
中文描述: 現(xiàn)場(chǎng)可編程門陣列
文件頁數(shù): 29/73頁
文件大?。?/td> 598K
代理商: XC5200SERIES
R
November 5, 1998 (Version 5.2)
7-117
XC5200 Series Field Programmable Gate Arrays
7
.
Note:
1. At power-up, VCC must rise from 2.0 V to VCC min in less then 25 ms, otherwise delay configuration by pulling PROGRAM
Low until VCC is Valid.
2. The first Data byte is loaded and CCLK starts at the end of the first RCLK active cycle (rising edge).
This timing diagram shows that the EPROM requirements are extremely relaxed. EPROM access time can be longer than
500 ns. EPROM data output has no hold-time requirements.
Figure 32: Master Parallel Mode Programming Switching Characteristics
Address for Byte n
Byte
2 TDRC
Address for Byte n + 1
D7
D6
A0-A17
(output)
D0-D7
RCLK
(output)
CCLK
(output)
DOUT
(output)
1 TRAC
7 CCLKs
CCLK
3 TRCD
Byte n - 1
X6078
Description
Symbol
Min
Max
Units
CCLK
Delay to Address valid
1
TRAC
0
200
ns
Data setup time
2
TDRC
60
ns
Data hold time
3
TRCD
0ns
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