A29L040-70 AMICC [AMIC Technology], A29L040-70 Datasheet - Page 2

• Manufacturer Part Number: A29L040-70
• Description: 512K X 8 Bit CMOS 3.0 Volt-only, Uniform Sector Flash Memory
• Manufacturer: AMICC [AMIC Technology]

Preliminary
Features
n Single power supply operation
n Access times:
n Current:
n Flexible sector architecture
n Embedded Erase Algorithms
General Description
PRELIMINARY
The A29L040 is a 3.0 volt-only Flash memory organized as
524,288 bytes of 8 bits each. The 512 Kbytes of data are
further divided into eight sectors of 64 Kbytes each for
flexible sector erase capability. The 8 bits of data appear on
I/O
A29L040 is offered in 32-pin PLCC, TSOP (8mm x 20mm)
or sTSOP (8mm x 14mm) packages. This device is
designed to be programmed in-system with the standard
system 3.0 volt VCC supply. Additional 12.0 volt VPP is not
required for in-system write or erase operations. However,
the A29L040 can also be programmed in standard EPROM
programmers.
The A29L040 has a second toggle bit, I/O
whether the addressed sector is being selected for erase,
and also offers the ability to program in the Erase Suspend
mode. The standard A29L040 offers access times of 70ns,
allowing high-speed microprocessors to operate without
wait states. To eliminate bus contention the device has
separate chip enable (
enable (
- 200 nA typical CMOS standby
- 200 nA Automatic Sleep Mode current
- 8 uniform sectors of 64 Kbyte each
- Any combination of sectors can be erased
- Supports full chip erase
- Sector protection:
- Full voltage range: 2.7 to 3.6 volt read and write
- Regulated voltage range: 3.0 to 3.6 volt read and
- 70 (max.)
- 4 mA typical active read current
- 20 mA typical program/erase current
0
operations for battery-powered applications
write
performance 3.3 volt microprocessors
A hardware method of protecting sectors to prevent
any inadvertent program or erase operations within
that sector
- I/O
OE
7
while the addresses are input on A0 to A18. The
operations
) controls.
(June, 2003, Version 0.1)
CE
for
), write enable ( WE ) and output
compatibility
with
2
, to indicate
high
1
The A29L040 is entirely software command set compatible
with the JEDEC single-power-supply Flash standard.
Commands are written to the command register using
standard microprocessor write timings. Register contents
serve as input to an internal state-machine that controls the
erase and programming circuitry. Write cycles also
internally latch addresses and data needed for the
programming and erase operations. Reading data out of the
device is similar to reading from other Flash or EPROM
devices.
The device requires only a single 3.0 volt power supply for
both read and write functions. Internally generated and
regulated voltages are provided for the program and erase
operations.
Device programming occurs by writing the proper program
command sequence. This initiates the Embedded Program
algorithm - an internal algorithm that automatically times the
program pulse widths and verifies proper program margin.
Device erasure occurs by executing the proper erase
command sequence. This initiates the Embedded Erase
algorithm - an internal algorithm that automatically
preprograms the array (if it is not already programmed)
n Typical 100,000 program/erase cycles per sector
n 20-year data retention at 125 C
n Compatible with JEDEC-standards
n
n Erase Suspend/Erase Resume
n Package options
512K X 8 Bit CMOS 3.0 Volt-only,
- Embedded Erase algorithm will automatically erase
- Embedded Program algorithm automatically writes
- Reliable operation for the life of the system
- Pinout and software compatible with single-power-
- Superior inadvertent write protection
- Provides a software method of detecting completion
- Suspends a sector erase operation to read data
- 32-pin DIP, PLCC, TSOP (8mm x 20mm) or sTSOP
Data
the entire chip or any combination of designated
sectors and verify the erased sectors
and verifies bytes at specified addresses
supply Flash memory standard
of program or erase operations
from, or program data to, a non-erasing sector, then
resumes the erase operation
(8mm x 14mm)
Uniform Sector Flash Memory
Polling and toggle bits
AMIC Technology, Corp.
A29L040 Series