at28lv256 ATMEL Corporation, at28lv256 Datasheet - Page 2

• Manufacturer Part Number: at28lv256
• Description: 256k 32k X 8 Low Voltage Cmos E2 Prom
• Manufacturer: ATMEL Corporation

Description (Continued)
Absolute Maximum Ratings*
64-bytes of data are internally latched, freeing the address
and data bus for other operations. Following the initiation
of a write cycle, the device will automatically write the
latched data using an internal control timer. The end of a
write cycle can be detected by 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.
Block Diagram
2-146
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 V
Voltage on OE and A9
with Respect to Ground ................... -0.6V to +13.5V
AT28LV256
CC
+ 0.6V
Atmel’s 28LV256 has additional features to ensure high
quality and manufacturability. The device utilizes internal
error correction for extended endurance and improved
data retention characteristics. An optional software data
protection mechanism is available to guard against inad-
vertent writes. The device also includes an extra 64-bytes
of E
*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
PROM for device identification or tracking.