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參數資料
| 型號： | W49F020-70 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | PROM |
| 英文描述： | Circular Connector; Body Material:Aluminum; Series:PT07; No. of Contacts:8; Connector Shell Size:12; Connecting Termination:Crimp; Circular Shell Style:Jam Nut Receptacle; Circular Contact Gender:Pin; Insert Arrangement:12-8 |
| 中文描述： | 256K X 8 FLASH 5V PROM, 70 ns, PDIP32 |
| 封裝： | PLASTIC, DIP-32 |
| 文件頁數： | 12/21頁 |
| 文件大小： | 190K |
| 代理商： | W49F020-70 |
Preliminary W49F020
- 12 -
AC Characteristics, continued
Read Cycle Timing Parameters
(V
CC
= 5.0V
±
10
%
, V
CC
= 0V, T
A
= 0 to 70
°
C)
PARAMETER
SYM.
W49F020-70
W49F020-90
UNIT
MIN.
MAX.
MIN.
MAX.
Read Cycle Time
T
RC
70
-
90
-
nS
Chip Enable Access Time
T
CE
-
70
-
90
nS
Address Access Time
T
AA
-
70
-
90
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
Write Cycle Timing Parameters
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Address Setup Time
Address Hold Time
T
AS
T
AH
T
CS
0
50
0
-
-
-
-
-
-
nS
nS
nS
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
100
-
-
nS
WE Pulse Width
T
WP
100
-
-
nS
WE High Width
Data Setup Time
Data Hold Time
T
WPH
100
-
-
nS
T
DS
T
DH
50
0
-
-
-
-
nS
nS
Byte programming Time
T
BP
-
10
50
μ
S
S
Erase Cycle Time
T
EC
-
0.1
1
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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PDF描述 |
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| W49F020Q-70B | 256K X 8 CMOS FLASH MEMORY |
| W49F020Q-90 | 256K X 8 CMOS FLASH MEMORY |
| W49F020Q-90B | 256K X 8 CMOS FLASH MEMORY |
| W49F102Q40 | 64K X 16 CMOS FLASH MEMORY |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W49F020-70B | 制造商:WINBOND 制造商全稱:Winbond 功能描述:256K X 8 CMOS FLASH MEMORY |
| W49F020-90 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:256K X 8 CMOS FLASH MEMORY |
| W49F020-90B | 制造商:WINBOND 制造商全稱:Winbond 功能描述:256K X 8 CMOS FLASH MEMORY |
| W49F020P-70 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:256K X 8 CMOS FLASH MEMORY |
| W49F020P-70B | 制造商:WINBOND 制造商全稱:Winbond 功能描述:256K X 8 CMOS FLASH MEMORY |
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