參數(shù)資料
型號: W78M32V90BM
英文描述: 8Mx32 Flash 3.3V Page Mode Simultaneous Read/Write Operation Multi-Chip Package
中文描述: 8Mx32閃光3.3V的頁面模式同步讀/寫操作多芯片封裝
文件頁數(shù): 45/54頁
文件大小: 756K
代理商: W78M32V90BM
45
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W78M32V-XBX
April 2006
Rev. 3
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
AC CHARACTERISTICS - WRITE/ERASE/PROGRAM OPERATIONS - WE# CONTROLLED
V
CC
= 3.3V ± 0.3V, -55°C
T
A
+125°C
Parameter
Symbol
-70
Min Max
70
0
35
0
45
0
45
20
-90
Min Max
90
0
35
0
45
0
45
30
-100
Min Max
100
0
50
0
50
0
50
30
-120
Min Max
120
0
50
0
50
0
50
30
Unit
Write Cycle Time (3)
Chip Select Setup Time (3)
Write Enable Pulse Width
Address Setup Time
Data Setup Time
Data Hold Time
Address Hold Time
Write Enable Pulse Width High (3)
Duration of Byte Programming
Operation (1)
Sector Erase (2)
Read Recovery Time before Write (3)
V
CC
Setup Time (3)
Chip Programming Time (4)
Address Setup Time to OE# low during
toggle bit polling
Write Recovery Time from RY/BY# (3)
Program/Erase Valid to RY/BY#
t
AVAV
t
ELWL
t
WLWH
t
AVWL
t
DVWH
t
WHDX
t
WLAX
t
WHWL
t
WHWH1
t
WC
t
CS
t
WP
t
AS
t
DS
t
DH
t
AH
t
WPH
ns
ns
ns
ns
ns
ns
ns
ns
μs
300
300
300
300
t
WHWH2
t
GHWL
t
VCS
5
5
5
5
sec
ns
μs
sec
ns
0
0
0
0
50
50
50
50
200
200
200
200
t
ASO
15
15
15
15
t
RB
t
BUSY
0
0
0
0
ns
ns
70
90
90
90
Notes:
1. Typical value for t
WHWH1
is 6μs.
2. Typical value for t
WHWH2
is 0.5 sec.
3. Guaranteed by design, but not tested.
4. Typical value is 50 sec. The typical chip program time is considerably less than the maximum chip programming time listed, since most bytes program faster than the maximum program
times listed.
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