A29L040A-70 AMICC [AMIC Technology], A29L040A-70 Datasheet - Page 22

• Manufacturer Part Number: A29L040A-70
• Description: 512K X 8 Bit CMOS 3.0 Volt-only, Uniform Sector Flash Memory
• Manufacturer: AMICC [AMIC Technology]

Notes:
1. Typical program and erase times assume the following conditions: 25°C, 3.0V VCC, 100,000 cycles. Additionally,
2. Under worst case conditions of 90°C, VCC = 2.7V, 100,000 cycles.
3. The typical chip programming time is considerably less than the maximum chip programming time listed, since most bytes
4. In the pre-programming step of the Embedded Erase algorithm, all bytes are programmed to 00h before erasure.
5. System-level overhead is the time required to execute the four-bus-cycle command sequence for programming. See Table 4
6. The device has a guaranteed minimum erase and program cycle endurance of 100,000 cycles.
Timing Waveforms for Alternate CE Controlled Write Operation
Erase and Programming Performance
PRELIMINARY (March, 2005, Version 0.0)
Sector Erase Time
Chip Erase Time
Byte Programming Time
Chip Programming Time (Note 3)
programming typically assumes checkerboard pattern.
program faster than the maximum byte program time listed. If the maximum byte program time given is exceeded, only then
does the device set I/O
for further information on command definitions.
Addresses
Data
Note :
1. PA = Program Address, PD = Program Data, SA = Sector Address, I/O
2. Figure indicates the last two bus cycles of the command sequence.
WE
OE
CE
Parameter
t
RH
t
t
WS
GHEL
555 for program
2AA for erase
5
= 1. See the section on I/O
A0 for program
55 for erase
t
WC
t
t
CP
DS
Typ. (Note 1)
PA for program
SA for sector erase
555 for chip erase
t
t
t
DH
WH
CPH
t
11
17
AS
2
6
5
PD for program
30 for sector erase
10 for chip erase
for further information.
Max. (Note 2)
t
AH
21
t
BUSY
13.5
200
64
8
Data Polling
t
WHWH1 or 2
7
= Complement of Data Input, D
Unit
sec
sec
sec
µs
PA
AMIC Technology, Corp.
Excludes 00h programming
prior to erasure (Note 4)
Excludes system-level
overhead (Note 5)
I/O
7
A29L040A Series
Comments
OUT
D
OUT
= Array Data.