A29L400A AMICC [AMIC Technology], A29L400A Datasheet - Page 30

• Manufacturer Part Number: A29L400A
• Description: 512K X 8 Bit / 256K X 16 Bit CMOS 3.0 Volt-only, Boot Sector Flash Memory
• Manufacturer: AMICC [AMIC Technology]

Timing Waveforms for Toggle Bit (During Embedded Algorithms)
Note: VA = Valid Address; not required for I/O
Timing Waveforms for Sector Protect/Unprotect
PRELIMINARY
Addresses
read cycle, and array data read cycle.
I/O
RESET
SA, A6,
A1, A0
RY/BY
Data
6
WE
Note : For sector protect, A6=0, A1=1, A0=0. For sector unprotect, A6=1, A1=1, A0=0
OE
CE
, I/O
WE
OE
CE
2
t
CH
(July, 2005, Version 0.0)
V
V
ID
IH
t
BUSY
High-Z
t
OEH
1us
t
ACC
t
CE
VA
60h
t
RC
Sector Protect/Unprotect
(first read)
Valid Status
t
OE
6
t
OH
. Illustration shows first two status cycle after command sequence, last status
t
DF
Valid*
60h
(second read)
Valid Status
29
Sector Unprotect:15ms
VA
Sector Protect:150us
Verify
Valid*
40h
Valid Status
(stop togging)
VA
AMIC Technology, Corp.
A29L400A Series
Valid Data
VA
Status
Valid*