FLASH

AS8F2M32

AS8F2M32

Rev. 2.7 01/10

Micross Components reserves the right to change products or specifications without notice.

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GENERAL DESCRIPTION (cont.)

The Sector Erase Architecture allows memory sectors to be erased

and reprogrammed without affecting the data contents of other sectors.

The device is fully erased when shipped from the factory.

Hardware Data Protection measures include a low VCC detector

that automatically inhibits write operations during power transitions.

The Hardware Sector Protection feature disables both program and

erase operations in any combinations of the sectors of memory. This

can be achieved via programming equipment.

The Erase Suspend feature enables the user to put erase on hold

for any period of time to read data form, or program data to, any sec-

tor that is not selected for erasure. True background erase can thus

be achieved.

The Hardware RESET\ pin terminates any operation in progress and

resets the internal state machine to reading array data. The RESET\

pin may be tied to the system reset circuitry. A system reset would

thus also reset the device, enabling the system microprocessor to read

the boot-up firmware from the FLASH memory.

The system can place the device into the standby mode. Power

consumption is greatly reduced in this mode.

FIGURE 2: FUNCTIONAL BLOCK DIAGRAM

PIN DESCRIPTION

PIN

DESCRIPTION

Data Inputs/Outputs

Address Inputs

Write Enables

Chip Selects

OE\

Output Enable

Power Supply

GND

Ground

RESET\

Reset

RESET\

OE\

A0 - A20

2M x 8

2M x 8

2M x 8

2M x 8

8

8

8

8