WF2M32 White Electronic Designs Corporation, WF2M32 Datasheet - Page 5

• Manufacturer Part Number: WF2M32
• Description: Organization = 2Mx32 ;; Speed (ns) = 90-150 ;; Volt = 5 ;; Package = 68 CQFP ;; Temp = C,i,m
• Manufacturer: White Electronic Designs Corporation

NOTES:
1. Typical value for t
2. Typical value for t
3. Typical value for Chip Erase Time is 32sec.
4. For Toggle and Data Polling.
FIG. 4
RESET TIMING DIAGRAM
Parameter
Write Cycle Time
Write Enable Setup Time
Chip Select Pulse Width
Address Setup Time
Data Setup Time
Data Hold Time
Address Hold Time
Chip Select Pulse Width High
Duration of Byte Programming Operation (1)
Sector Erase Time (2)
Read Recovery Time
Chip Programming Time
Chip Erase Time (3)
Output Enable Hold Time (4)
FIG. 3
AC TEST CIRCUIT
C
eff
AC CHARACTERISTICS – WRITE/ERASE/PROGRAM OPERATIONS,CS CONTROLLED
= 50 pf
D.U.T.
WHWH1
WHWH2
RESET
RY/BY
Current Source
Current Source
WE
CS
is 7 s.
is 1sec.
I
I
OL
OH
(V
CC
= 5.0V, V
t
RP
t
t
WHWH1
WHWH2
t
t
t
t
t
t
t
t
t
WLEL
AVAV
ELEH
AVEL
DVEH
EHDX
ELAX
EHEL
GHEL
Symbol
V
(Bipolar Supply)
SS
Z
= 0V, T
1.5V
t
t
t
t
t
t
t
t
t
WC
WS
CP
AS
DS
DH
AH
CPH
OEH
5
A
= -55 C to +125 C)
The rising edge of the last WE signal
Min
t
t
90
45
45
45
20
10
BUSY
Ready
0
0
0
0
-90
NOTES:
V
I
Tester Impedance Z
V
I
ATE tester includes jig capacitance.
OL
OL
Parameter
Input Pulse Levels
Input Rise and Fall
Input and Output Reference Level
Output Timing Reference Level
Z
Z
is programmable from -2V to +7V.
is typically the midpoint of V
& I
& I
Max
300
256
15
44
OH
OH
are adjusted to simulate a typical resistive load circuit.
programmable from 0 to 16mA.
White Electronic Designs Corporation • Phoenix, AZ • [phone]
AC TEST CONDITIONS
Min
120
50
50
50
20
10
0
0
0
0
0
Entire programming
or erase operations
-120
= 75
Max
300
256
15
44
.
OH
and V
WF2M32-XXX5
V
OL
Min
150
IL
50
50
50
20
10
0
0
0
0
.
= 0, V
Typ
1.5
1.5
-150
5
IH
= 3.0
Max
300
256
15
44
Unit
ns
V
V
V
Unit
sec
sec
sec
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s