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6

EN29F002 / EN29F002N

Rev. C, Issue Date: 2001/07/05

USER MODE DEFINITIONS

Reset Mode

EN29F002 features a Reset mode that resets the program and erase operation immediately to read

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

not available for EN29F002N.

Standby Mode

The EN29F002 / EN29F002N has a CMOS-compatible standby mode which reduces the current to

<

The device also has a TTL-compatible standby mode which

current typically reduced to

standby with current reduced to

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

Read Mode

The EN29F002 / EN29F002N 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 enable

Output Disable Mode

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 12.0 V

±

0.5V on address line A9 of the EN29F002T/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).