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AM29F040-120JC 32 Pin PLCC IC AMD
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Manufacturer: AMD
Part Number: AM29F040-120JC
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Price: $3.75
237 available for immediate delivery
Product code: IC276
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Item Specifications and Additional Information:
4 Megabit (524,288 x 8-Bit) CMOS 5.0 Volt-only,
Sector Erase Flash Memory
DISTINCTIVE CHARACTERISTICS:
5.0 V ± 10% for read and write operations
Compatible with JEDEC-standards
Embedded Erase Algorithms
- Automatically preprograms and erases the chip
or any combination of sectors
Embedded Program Algorithms
- Automatically programs and verifies data at
specified address
Data Polling and Toggle Bit feature for detection
of program or erase cycle completion
Erase suspend/resume
- Supports reading data from a sector not being
erased
Low power consumption
- 20 mA typical active read current
- 30 mA typical program/erase current
Enhanced power management for standby
mode
GENERAL DESCRIPTION:
The Am29F040 is a 4 Mbit, 5.0 Volt-only Flash memory
organized as 512 Kbytes of 8 bits each. The Am29F040
is offered in a 32-pin package. This device is designed
to be programmed in-system with the standard system
5.0 V VCC supply. A 12.0 V VPP is not required for
write or erase operations. The device can also be
reprogrammed in standard EPROM programmers.
The standard AM29F040 offers access times between
55 ns and 150 ns, allowing operation of high-speed
microprocessors without wait states. To eliminate bus
contention the device has separate chip enable (CE),
write enable (WE) and output enable (OE) controls.
The Am29F040 is entirely 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
which 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 12.0 Volt Flash or EPROM devices.
The Am29F040 is programmed by executing the program
command sequence. This will invoke the Embedded
Program Algorithm which is an internal algorithm
that automatically times the program pulse widths and
verifies proper cell margin.
Typically, each sector can
be programmed and verified in less than one second.
Erase is accomplished by executing the erase command
sequence. This will invoke the Embedded Erase
Algorithm which is an internal algorithm that automatically
preprograms the array if it is not already programmed
before executing the erase operation. During
erase, the device automatically times the erase pulse
widths and verifies proper cell margin.
Manufactured by: AMD
Part Number: AM29F040-120JC |
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