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參數資料
型號: W49F201T-45
廠商: WINBOND ELECTRONICS CORP
元件分類: PROM
英文描述: 128K X 16 CMOS FLASH MEMORY
中文描述: 128K X 16 FLASH 5V PROM, 45 ns, PDSO48
封裝: 12 X 20 MM, TSOP-48
文件頁數: 14/23頁
文件大小: 267K
代理商: W49F201T-45
Preliminary W49F201
- 14 -
AC Characteristics, continued
Read Cycle Timing Parameters
(V
CC
= 5.0V
±
10
%
, V
CC
= 0V, T
A
= 0 to 70
°
C)
PARAMETER
SYM.
W49F201-45
W49F201-55
UNIT
MIN.
MAX.
MIN.
MAX.
Read Cycle Time
T
RC
45
-
55
-
nS
Chip Enable Access Time
T
CE
-
45
-
55
nS
Address Access Time
T
AA
-
45
-
55
nS
Output Enable Access Time
T
OE
-
35
-
40
nS
CE
Low to Active Output
T
CLZ
0
-
0
-
nS
OE
Low to Active Output
T
OLZ
0
-
0
-
nS
CE
High to High-Z Output
T
CHZ
-
25
-
25
nS
OE
High to High-Z Output
T
OHZ
-
25
-
25
nS
Output Hold from Address Change
T
OH
0
-
0
-
nS
Note: The parameter of T
CLZ
, T
OLZ
, T
CHZ
, T
OHZ
are characterized only and is not 100% tested.
Write Cycle Timing Parameters
PARAMETER
SYMBOL
T
AS
T
AH
T
CS
MIN.
0
50
0
TYP.
-
-
-
MAX.
-
-
-
UNIT
nS
nS
nS
Address Setup Time
Address Hold Time
WE
and
CE
Setup Time
WE
and
CE
Hold Time
T
CH
0
-
-
nS
OE
High Setup Time
T
OES
0
-
-
nS
OE
High Hold Time
T
OEH
0
-
-
nS
CE
Pulse Width
T
CP
70
-
-
nS
WE
Pulse Width
T
WP
70
-
-
nS
WE
High Width
Data Setup Time
Data Hold Time
Word programming Time
T
WPH
100
-
-
nS
T
DS
T
DH
T
BC
50
10
-
-
-
-
-
nS
nS
35
50
μ
S
mS
Erase Cycle Time
T
EC
-
60
200
Note: All AC timing signals observe the following guidelines for determining setup and hold times:
(a) High level signal's reference level is V
IH
and (b) low level signal's reference level is V
IL
.
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