參數(shù)資料
型號: W29D040C-55C
廠商: WINBOND ELECTRONICS CORP
元件分類: PROM
英文描述: 512K X 8 FLASH 5V PROM, 55 ns, PDIP32
封裝: PLASTIC, DIP-32
文件頁數(shù): 13/40頁
文件大?。?/td> 280K
代理商: W29D040C-55C
W29D040C
- 20 -
Write Cycle Timing Parameters
PARAMETER
SYM.
W29D040C
-55
W29D040C
-70
UNIT
Write Cycle Time
TWC
Min.
55
70
nS
Address Setup Time
TAS
Min.
0
nS
Address Hold Time
TAH
Min.
40
45
nS
Data Setup Time
TDS
Min.
25
30
nS
Data Hold Time
TDH
Min.
0
nS
Output Enable Read
TOEH
Min.
0
nS
Hold Time
Toggle and Data Polling
Min.
10
nS
Read Recover Time Before Write
(OE High to
WE Low)
TGHWL
Min.
0
nS
CE Setup Time
TCS
Min.
0
nS
CE Hold Time
TCH
Min.
0
nS
Write Pulse Width
TWP
Min.
30
35
nS
Write Pulse Width High
TWPH
Min.
20
nS
Byte Programming Operation
TWHWH1 Typ.
40
S
Sector Erase Operation
TWHWH2 Typ.
30
mS
Max.
4
sec
Chip Erase Operation
TWHWH3 Typ.
300
mS
Max.
32
sec
VCC Set Up Time
TVCS
Min.
50
S
Notes:
All AC timing signals observe the following guidelines for determining setup and hold times:
(a) High level signal's reference level is VIH.
(b) Low level signal's reference level is V IL.
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