WMF2M8-120DAC5 Ver la hoja de datos (PDF) - White Electronic Designs Corporation
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WMF2M8-120DAC5 Datasheet PDF : 14 Pages
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White Electronic Designs
WMF2M8-XXX5
AC CHARACTERISTICS – WRITE/ERASE/PROGRAM OPERATIONS,CS# CONTROLLED
VCC = 5.0V, VSS = 0V, VSS = 0V, -55°C ≤ TA ≤ +125°C
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)
Symbol
tAVAV
tWC
tWLEL
tWS
tELEH
tCP
tAVEL
tAS
tDVEH
tDS
tEHDX
tDH
tELAX
tAH
tEHEL
tCPH
tWHWH1
tWHWH2
tGHEL
tOEH
-90
-120
-150
Unit
Min Max Min Max Min Max
90
120
150
ns
0
0
0
ns
45
50
50
ns
0
0
0
ns
45
50
50
ns
0
0
0
ns
45
50
50
ns
20
20
20
ns
300
300
300
µs
15
15
15
sec
0
0
0
µs
44
44
44
sec
256
256
256
sec
10
10
10
ns
NOTES:
1. Typical value for tWHWH1 is 7µs.
2. Typical value for tWHWH2 is 1sec.
3. Typical value for Chip Erase Time is 32sec.
4. For Toggle and Data Polling.
Current Source
D.U.T.
Ceff = 50 pf
Current Source
FIGURE 2 – AC TEST CIRCUIT
AC Test Conditions
IOL
Parameter
Typ
Unit
Input Pulse Levels
VIL = 0, VIH = 3.0 V
Input Rise and Fall
5
ns
Input and Output Reference Level
1.5
V
VZ = 1.5V
Output Timing Reference Level
1.5
V
(Bipolar Supply)
Notes:
VZ is programmable from -2V to +7V.
IOL & IOH programmable from 0 to 16mA.
Tester Impedance Z0 = 75 Ω.
IOL
VZ is typically the midpoint of VOH and VOL.
IOL & IOH are adjusted to simulate a typical resistive load circuit.
ATE tester includes jig capacitance.
Parameter
Std
tREADY
tREADY
tRP
tRH
tRB
HARDWARE RESET (RESET#)
Description
RESET Pin Low (During Embedded Algorithms) to Read or Write (See Note)
RESET Pin Low (Not During Embedded Algorithms) to Read or Write (See Note)
RESET Pulse Width
RESET High Time Before Read (See Note)
RY/BY Recovery Time
Test Setup
Max
Max
Min
Min
Min
All Speed Options Unit
20
µs
500
ns
500
ns
50
ns
0
ns
May 2004
Rev. 6
4
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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