W29C020CP90B Winbond Electronics, W29C020CP90B Datasheet - Page 12

• Manufacturer Part Number: W29C020CP90B
• Description: IC FLASH 2MBIT 90NS 32PLCC
• Manufacturer: Winbond Electronics

Specifications of W29C020CP90B

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 2M (256K x 8)
• Speed: 90ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 32-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Q1321111

AC Characteristics, continued
Read Cycle Timing Parameters
(V
Byte/Page-write Cycle Timing Parameters
Note: All AC timing signals observe the following guideline for determining setup and hold times:
Read Cycle Time
Chip Enable Access Time
Address Access Time
Output Enable Access Time
#CE High to High-Z Output
#OE High to High-Z Output
Output Hold from Address change
Write Cycle (erase and program)
Address Setup Time
Address Hold Time
#WE and #CE Setup Time
#WE and #CE Hold Time
#OE High Setup Time
#OE High Hold Time
#CE Pulse Width
#WE Pulse Width
#WE High Width
Data Setup Time
Data Hold Time
Byte Load Cycle Time
DD
= 5.0V 10 % for 90 nS and 120 nS; V
Reference level is V
PARAMETER
PARAMETER
IH
for high-level signal and V
DD
= 5.0V 5 % for 70 nS, V
SYMBOL
SYM.
T
T
T
T
T
T
T
RC
CE
AA
OE
CHZ
OHZ
OH
T
T
T
T
T
T
T
T
T
T
T
T
T
WC
AS
AH
CS
CH
OES
OEH
CP
WP
WPH
DS
DH
BLC
IL
for low-level signal.
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W29C020C-70 W29C020C-90 W29C020C-12
MIN.
70
0
-
-
-
-
-
MIN.
100
50
70
70
50
MAX.
0
0
0
0
0
0
-
-
SS
70
70
35
25
25
-
-
= 0V, T
MIN.
A
90
0
= 0 to 70 C)
-
-
-
-
-
TYP.
-
-
-
-
-
-
-
-
-
-
-
-
-
MAX.
90
90
40
25
25
-
-
MAX.
200
MIN.
10
120
W29C020C
-
-
-
-
-
-
-
-
-
-
-
0
-
-
-
-
-
MAX.
120
120
50
30
30
-
-
UNIT
mS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
S
UNIT
nS
nS
nS
nS
nS
nS
nS