HD64F3437TF16 Datasheet, PDF (456/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

V_{CC 5.0 V}
12 V
V_{PP 5.0 V}
Program setup
t_VPS
Address
CE
Valid address
t_AS
t_AH
OE
WE
I/O7
t_CES
t_OEWS ^tWEP
t_CWC
t_CEH
t_CEH
t_CES
t_WEP
t_WEH
t_DS
t_DH
t_DS
t_DH
Command
Data
input
input
Program
Program-verify
t_VPH
t_PPW
t_CES
t_WEP
t_CEH
t_OERS
t_DH
t_DS
Command
input
t_VA
t_DF
Valid data
output
I/O0 to I/O6
Command
input
Data
input
Command
input
Valid data
output
Note: Program-verify data output values may be intermediate between 1 and 0 before programming has
been completed.
Figure 19.18 High-Speed, High-Reliability Programming Timing
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