AT28BV64-30PI Просмотр технического описания (PDF) - Atmel Corporation

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AT28BV64-30PI

64K (8K x 8) Battery-Voltage CMOS E2PROM

Atmel Corporation 

Description (Continued)

lowing the initiation of a write cycle, the device will go to a

busy state and automatically clear and write the latched

data using an internal control timer. The device includes

two methods for detecting the end of a write cycle, level

detection of RDY/BUSY and DATA polling of I/O7. Once

the end of a write cycle has been detected, a new access

for a read or write can begin.

Atmel’s 28BV64 has additional features to ensure high

quality and manufacturability. The device utilizes error cor-

rection internally for extended endurance and for im-

proved data retention characteristics. An extra 32-bytes of

E2PROM are available for device identification or tracking.

Block Diagram

Absolute Maximum Ratings*

Temperature Under Bias................. -55°C to +125°C

Storage Temperature...................... -65°C to +150°C

All Input Voltages

(including NC Pins)

with Respect to Ground ................... -0.6V to +6.25V

All Output Voltages

with Respect to Ground .............-0.6V to VCC + 0.6V

Voltage on OE and A9

with Respect to Ground ................... -0.6V to +13.5V

*NOTICE: Stresses beyond those listed under “Absolute Maxi-

mum Ratings” may cause permanent damage to the device.

This is a stress rating only and functional operation of the

device at these or any other conditions beyond those indi-

cated in the operational sections of this specification is not

implied. Exposure to absolute maximum rating conditions

for extended periods may affect device reliability.

2-128

AT28BV64

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