參數(shù)資料
型號(hào): W78M32V120BC
英文描述: 8Mx32 Flash 3.3V Page Mode Simultaneous Read/Write Operation Multi-Chip Package
中文描述: 8Mx32閃光3.3V的頁(yè)面模式同步讀/寫操作多芯片封裝
文件頁(yè)數(shù): 42/54頁(yè)
文件大?。?/td> 756K
代理商: W78M32V120BC
42
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W78M32V-XBX
April 2006
Rev. 3
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
Current Source
Current Source
I
OL
I
OH
D.U.T.
= 50 pf
C
EFF
V ~ 1.5v
(Bipolar Supply)
AC TEST CIRCUIT
FIG 10:
AC TEST CONDITIONS
Parameter
Input Pulse Levels
Input Rise and Fall
Input and Output Reference Level
Output Timing Reference Level
Typ
Unit
V
ns
V
V
V
IL
- 0, V
IH
= 2.5
5
1.5
1.5
Notes:
VZ is programmable from -2V to +7V.
IOL & IOH programmable from 0 to 16 mA.
Tester Impedance Z0 = 50
.
VZ is typically the midpoint of V
OH
and V
OL.
IOL & IOH are adjusted to similate a typical resistive load circuit.
ATE tester Includes jig capacitance.
AC CHARACTERISTICS - READ-ONLY OPERATIONS
V
CC
= 3.3V ± 0.3V, -55°C
T
A
+125°C
Parameter
Symbol
-70
Min Max
70
-90
Min Max
90
-100
Min Max
100
-120
Min Max
120
Unit
Read Cycle Time (3)
Address Access Time
Chip Select Access Time
Page Access Time
Output Enable to Output Valid
Chip Select High to Output High Z
Output Enable High to Output High Z
Output Hold from Addresses, CS# or OE#
Change, Whichever occurs first
Output Enable Hold
Time (1)
t
AVAV
t
AVQV
t
ELQV
t
RC
t
ACC
t
CE
t
PACC
t
OE
t
DF
t
DF
t
OH
ns
ns
ns
ns
ns
ns
ns
ns
70
70
25
30
20
20
90
90
25
40
20
20
100
100
100
40
20
20
120
120
120
50
20
20
t
OLQV
t
EHQZ
t
GHQZ
t
AXQX
5
5
5
5
Read
Toggle and
Data# Polling
t
OEH
0
0
0
0
10
10
10
10
1. Guaranteed by design, not tested.
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