AM29DL400BB-120EC AMD [Advanced Micro Devices], AM29DL400BB-120EC Datasheet - Page 32

• Manufacturer Part Number: AM29DL400BB-120EC
• Description: 4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Operation Flash Memory
• Manufacturer: AMD [Advanced Micro Devices]

AC CHARACTERISTICS
Notes:
1. SA = sector address (for Sector Erase), VA = Valid Address for reading status data (see “Write Operation Status”).
2. Illustration shows device in word mode.
32
Notes:
1. PA = program address, PD = program data, D
2. Illustration shows device in word mode.
Addresses
Addresses
RY/BY#
RY/BY#
WE#
Data
OE#
CE#
V
CC
WE#
Data
OE#
CE#
V
CC
t
VCS
t
VCS
Program Command Sequence (last two cycles)
555h
t
CS
t
t
CS
t
t
GHWL
Figure 18. Chip/Sector Erase Operation Timings
WC
GHWL
2AAh
t
WC
t
Figure 17. Program Operation Timings
t
WP
t
WP
t
DS
DS
55h
A0h
t
t
t
DH
CH
DH
t
CH
P R E L I M I N A R Y
t
555h for chip erase
OUT
WPH
t
WPH
t
AS
is the true data at the program address.
PA
Am29DL400B
t
AS
SA
t
AH
10 for Chip Erase
PD
t
AH
t
30h
BUSY
t
BUSY
t
WHWH1
Read Status Data (last two cycles)
PA
t
WHWH2
Status
VA
Progress
In
D
OUT
PA
t
VA
RB
Complete
t
RB
21606C-22
21606C-21