This Data Sheet may be revised by subsequent versions

©2003 Eon Silicon Solution, Inc., www.essi.com.tw

or modifications due to changes in technical specifications.

6

EN29F002A / EN29F002AN

Rev. A, Issue Date: 2003/03/26

USER MODE DEFINITIONS

Reset Mode

EN29F002A features a Reset mode that resets the program and erase operation immediately to

program or erase which was terminated should be repeated since data will be corrupted. This pin is

not available for EN29F002AN.

Standby Mode

The EN29F002A / EN29F002AN has a CMOS-compatible standby mode which reduces the current

to

standby with current typically reduced to

compatible standby with current reduced to

< 1mA. When in standby modes, the outputs are in a

Read Mode

The EN29F002A / EN29F002AN has two control functions which must be satisfied in order to obtain

data at the outputs. Chip Enable ( CE ) is the power control and should be used for device selection.

Output Enable ( OE ) is the output control and should be used to gate data to the output pins,

delay from stable CE to valid data at output pins. Data is available at the outputs after output

Output Disable Mode

EN29F002AN is disabled. The output pins are placed in a high impedance state.

Auto Select Identification Mode

The manufacturer and device type can be identified by hardware or software operations. This mode

allows applications or programming equipment automatically matching the device with its

corresponding interface characteristics.

To activate the Auto Select Identification mode, the programming equipment must force 11.0 V

±

0.5V on address line A9 of the EN29F002AT/B. Two identifier bytes can then be sequenced from the

The manufacturer and device identification may also be read via the command register. By following

the command sequence referenced in the Command Definition Table (Table 5). This method is

desirable for in-system identification (using only + 5.0V).