Rainbow Electronics W27E512 - Manual (Page 8)

W27E512
- 8 -
TIMING WAVEFORMS
AC Read Waveform
OE/Vpp
Outputs
High Z
High Z
Valid Output
T OE
T ACC
T OH
T DF
V IH
V IL
Address
CE
Address Valid
T CE
V IL
V IH
V IH
V IL
Erase Waveform
Address
Data
Vcc
V IH
V IL
5V
Read
Company
SID Read
Device
SID
A9=12.0V
Chip Erase
A9= 14.0V
Blank Check
Read Verify
Address Valid
T ACC T ACC
DA 08 Data All One
T AS
T AHC
T ACV
D OUT
T ACV T ACC
T DS T DH T
VCS
3.75V
Erase Verify
OE/Vpp
CE
V IH
V IH
V IL
V IL
14.0V
T OE
T OE
T OES
T PRT
T OEH
T OEV
V IH
T OE V IH
T CE T
VS
T PWE T VR
Address Valid Address Valid Address Valid
Always=V IL
IL
Others=V IL
IL
Others=V IL A0=VIH
D OUT D OUT
Others=V
A0=V
=250 nS =250 nS
=150 nS