at28lv256 ATMEL Corporation, at28lv256 Datasheet

no-image

at28lv256

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

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
at28lv256-20JC
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
at28lv256-20JI
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
at28lv256-20SI
Manufacturer:
adesto
Quantity:
5 000
Part Number:
at28lv256-20TC
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
at28lv256-25JC
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
at28lv256-25JI
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
at28lv256-25TI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Pin Configurations
Features
Description
The AT28LV256 is a high-performance Electrically Erasable and Programmable
Read Only Memory. Its 256K of memory is organized as 32,768 words by 8 bits.
Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers
access times to 200 ns with power dissipation of just 54 mW. When the device is
deselected, the CMOS standby current is less than 200 A.
The AT28LV256 is accessed like a Static RAM for the read or write cycle without the
need for external components. The device contains a 64-byte page register to allow
writing of up to 64-bytes simultaneously. During a write cycle, the addresses and 1 to
Pin Name
A0 - A14
CE
OE
WE
I/O0 - I/O7
NC
DC
Fast Read Access Time - 200 ns
Automatic Page Write Operation
Fast Write Cycle Times
Low Power Dissipation
Hardware and Software Data Protection
DATA Polling for End of Write Detection
High Reliability CMOS Technology
Single 3.3V
JEDEC Approved Byte-Wide Pinout
Commercial and Industrial Temperature Ranges
Note: PLCC package pins 1 and
17 are DON’T CONNECT.
Internal Address and Data Latches for 64-Bytes
Internal Control Timer
Page Write Cycle Time: 10 ms Maximum
1 to 64-Byte Page Write Operation
15 mA Active Current
20 A CMOS Standby Current
Endurance: 10,000 Cycles
Data Retention: 10 Years
Top View
PLCC
Function
Addresses
Chip Enable
Output Enable
Write Enable
Data Inputs/Outputs
No Connect
Don’t Connect
5% Supply
PDIP, SOIC
Top View
Top View
TSOP
(continued)
AT28LV256
AT28LV256
256K (32K x 8)
Low Voltage
CMOS
E
2
PROM
2-145
0273E

Related parts for at28lv256

at28lv256 Summary of contents

Page 1

... When the device is deselected, the CMOS standby current is less than 200 A. The AT28LV256 is accessed like a Static RAM for the read or write cycle without the need for external components. The device contains a 64-byte page register to allow writing 64-bytes simultaneously ...

Page 2

... Respect to Ground ................... -0.6V to +6.25V All Output Voltages with Respect to Ground .............-0. Voltage on OE and A9 with Respect to Ground ................... -0.6V to +13.5V AT28LV256 2-146 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 ...

Page 3

... WC ing operation. PAGE WRITE AT28LV256 allows 1 to 64-bytes of data to be written into the device during a single internal programming period. A page write operation is initiated in the same manner as a byte write; the first byte written can then be followed additional bytes ...

Page 4

... 12.0V H Condition I 0. MHz OUT -100 A OH AT28LV256-25 0°C - 70°C -40°C - 85° OUT High High Z V High Z IL 0.5V. Min Max Units 10 10 Com ...

Page 5

... ACC after the falling 4. This parameter is characterized and is not 100% tested ACC OE . ACC Output Test Load (1) Typ Max AT28LV256 AT28LV256-25 Min Max 250 250 80 0 100 Units Conditions OUT Units ...

Page 6

... Chip Select Hold Time CH t Write Pulse Width ( Data Set-up Time Data, OE Hold Time DH OEH t Time to Data Valid DV Note Restriction AC Write Waveforms WE Controlled CE Controlled AT28LV256 2-150 Min Max Units 200 (1) NR ...

Page 7

... ENTER DATA PROTECT STATE ( through A14 must specify the same page address during each high to low transition of WE (or CE) after the software code has been entered must be high only when WE and CE are both low. AT28LV256 Min Max ...

Page 8

... OEHP t Write Recovery Time WR Notes: 1. These parameters are characterized and not 100% tested. Toggle Bit Waveforms Notes: 1. Toggling either both OE and CE will operate toggle bit. 2. Beginning and ending state of I/O6 will vary. AT28LV256 2-152 (1) Min See AC Read Characteristics. ...

Page 9

... AT28LV256 2-153 ...

Page 10

... AT28LV256-20TC 28T AT28LV256-20JI 32J AT28LV256-20PI 28P6 AT28LV256-20SI 28S AT28LV256-20TI 28T AT28LV256-25JC 32J AT28LV256-25PC 28P6 AT28LV256-25SC 28S AT28LV256-25TC 28T AT28LV256-25JI 32J AT28LV256-25PI 28P6 AT28LV256-25SI 28S AT28LV256-25TI 28T Package and Temperature Combinations JC, JI, PC, PI, SC, SI, TC, TI JC, JI, PC, PI, SC, SI, TC, TI Package Type ...

Related keywords