2

AT25080A/160A/320A/640A

3347K–SEEPR–2/07

Block write protection is enabled by programming the status register with one of four blocks of

write protection. Separate program enable and program disable instructions are provided for

additional data protection. Hardware data protection is provided via the WP pin to protect

against inadvertent write attempts to the status register. The HOLD pin may be used to sus-

pend any serial communication without resetting the serial sequence.

Figure 1. Block Diagram

Absolute Maximum Ratings*

Operating Temperature.................................–55

° C to +125° C

*NOTICE:

Stresses beyond those listed under “Absolute

Maximum Ratings” may cause permanent dam-

age to the device. This is a stress rating only and

functional operation of the device at these or any

other conditions beyond those indicated in the

operational sections of this specification is not

implied. Exposure to absolute maximum rating

conditions for extended periods may affect device

reliability.

Storage Temperature ....................................–65

° C to +150° C

Voltage on Any Pin

with Respect to Ground .................................... –1.0V to +7.0V

Maximum Operating Voltage .......................................... 6.25V

DC Output Current........................................................ 5.0 mA