参数资料
型号: W29C022-90
厂商: WINBOND ELECTRONICS CORP
元件分类: PROM
英文描述: 256K X 8 FLASH 5V PROM, 90 ns, PDIP32
封装: 0.600 INCH, PLASTIC, DIP-32
文件页数: 4/21页
文件大小: 303K
代理商: W29C022-90
W29C022
- 12 -
AC Characteristics, continued
Read Cycle Timing Parameters
(VDD = 5.0V
±10% for 90 nS and 120 nS; VDD = 5.0V ±5% for 70 nS, VSS = 0V, TA = 0 to 70° C)
PARAMETER
SYM.
W29C022-70
W29C022-90
W29C022-12
UNIT
MIN.
MAX.
MIN.
MAX.
MIN.
MAX.
Read Cycle Time
TRC
70
-
90
-
120
-
nS
Chip Enable Access Time
TCE
-
70
-
90
-
120
nS
Address Access Time
TAA
-
70
-
90
-
120
nS
Output Enable Access Time
TOE
-
35
-
40
-
50
nS
#CE High to High-Z Output
TCHZ
-
25
-
25
-
30
nS
#OE High to High-Z Output
TOHZ
-
25
-
25
-
30
nS
Output Hold from Address Change
TOH
0
-
0
-
0
-
nS
Byte/Page-write Cycle Timing Parameters
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Write Cycle (Erase and Program)
TWC
-
10
mS
Address Setup Time
TAS
0
-
nS
Address Hold Time
TAH
50
-
nS
#WE and #CE Setup Time
TCS
0
-
nS
#WE and #CE Hold Time
TCH
0
-
nS
#OE High Setup Time
TOES
0
-
nS
#OE High Hold Time
TOEH
0
-
nS
#CE Pulse Width
TCP
70
-
nS
#WE Pulse Width
TWP
70
-
nS
#WE High Width
TWPH
100
-
nS
Data Setup Time
TDS
50
-
nS
Data Hold Time
TDH
0
-
nS
Byte Load Cycle Time
TBLC
-
150
S
Note: All AC timing signals observe the following guideline for determining setup and hold times:
Reference level is VIH for high-level signal and VIL for low-level signal.
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