Rainbow Electronics W27E040 - Manual (Page 8)

W27E040
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TIMING WAVEFORMS
AC Read Waveform
CE
Outputs
T
High Z
High Z
Valid Output
CE
T OE
T ACC
T OH
T DF
Address Address Valid
V IL
V IH
V IH
V IL
V IH
V IL
OE
Erase Waveform
Address
Read
SID
Device
Read
SID
A9 = 12.0V
Others = V IL
A0 = V IL
Data
Chip Erase
A9 = 14.0V Erase Verify
Address
Stable
T ACC
DA 86 Data All One
14.0V
5.0V
A0= V IH
5V
Read Verify
Blank Check
Manufacturer
Address
Stable Address
Stable
Others = V IL
Others = V IL
T ACC T
AS T
ARC
T
DS T AHC
T VPS
T DFP
D OUT D OUT
D OUT
T AH
T
ACC
V IH
V IL
V
PP
CE
OE
T CE
T OE T
OE
T OES
T OEV
T
OE
V
IH
V
IL
V IH
V
IL
T PWE