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Original Programming IC Chips 256K 32K X 8 5 Volt Only Cmos Flash Memory AT29C256

Good quality Programmable IC Chips for sales
Good quality Programmable IC Chips for sales
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Original Programming IC Chips 256K 32K X 8 5 Volt Only Cmos Flash Memory AT29C256

China Original Programming IC Chips 256K 32K X 8 5 Volt Only Cmos Flash Memory AT29C256 supplier

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Product Details:

Place of Origin: original factory
Brand Name: Anterwell
Certification: new & original
Model Number: AT29C256-70PC

Payment & Shipping Terms:

Minimum Order Quantity: 10pcs
Price: Negotiate
Packaging Details: Please contact me for details
Delivery Time: 1 day
Payment Terms: T/T, Western Union, Paypal
Supply Ability: 4600pcs
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Detailed Product Description
Input Load Current: 10 µA (max) Output Leakage Current: 10 µA (max)
VCC Standby Current CMOS: 300 µA (max) VCC Standby Current TTL: 3 MA (max)
VCC Active Current: 50 MA (max) Input Low Voltage: 0.8 V (max)
Input High Voltage: 2.0 V (min) Output Low Voltage: 0.45 V (max)
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Original Programming IC Chips 256K 32K X 8 5 Volt Only Cmos Flash Memory AT29C256

 

 

256K (32K x 8) 5-volt Only Flash Memory AT29C256

 

 

Features

 

• Fast Read Access Time – 70 ns

• 5-volt Only Reprogramming

• Page Program Operation

  – Single Cycle Reprogram (Erase and Program)

  – Internal Address and Data Latches for 64 Bytes

• Internal Program Control and Timer

• Hardware and Software Data Protection

• Fast Program Cycle Times

  – Page (64 Byte) Program Time – 10 ms

  – Chip Erase Time – 10 ms

• DATA Polling for End of Program Detection

• Low-power Dissipation

  – 50 mA Active Current

  – 300 µA CMOS Standby Current

• Typical Endurance > 10,000 Cycles

• Single 5V ± 10% Supply

• CMOS and TTL Compatible Inputs and Outputs

• Commercial and Industrial Temperature Ranges

 

Description

 

The AT29C256 is a five-volt-only in-system Flash programmable and erasable read only memory (PEROM). 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 70 ns with power dissipation of just 275 mW. When the device is deselected, the CMOS standby current is less than 300 µA. The device endurance is such that any sector can typically be written to in excess of 10,000 times.

 

Pin Configurations

 

  Pin Name     Function
  A0 - A14    Addresses
  CE   Chip Enable
  OE   Output Enable
  WE   Write Enable
  I/O0 - I/O7   Data Inputs/Outputs
  NC    No Connect
  DC    Don’t Connect

 

PLCC and LCC Top View

Original Programming IC Chips 256K 32K X 8 5 Volt Only Cmos Flash Memory AT29C256

Note: PLCC package pins 1 and 17 are DON’T CONNECT.

 

TSOP Top View Type 1

Original Programming IC Chips 256K 32K X 8 5 Volt Only Cmos Flash Memory AT29C256

 

To allow for simple in-system reprogrammability, the AT29C256 does not require high input voltages for programming. Five-volt-only commands determine the operation of the device. Reading data out of the device is similar to reading from a static RAM. Reprogramming the AT29C256 is performed on a page basis; 64 bytes of data are loaded into the device and then simultaneously programmed. The contents of the entire device may be erased by using a six-byte software code (although erasure before programming is not needed). During a reprogram cycle, the address locations and 64 bytes of data are internally latched, freeing the address and data bus for other operations. Following the initiation of a program cycle, the device will automatically erase the page and then program the latched data using an internal control timer. The end of a program cycle can be detected by DATA polling of I/O7. Once the end of a program cycle has been detected a new access for a read, program or chip erase can begin.

 

Block Diagram

Original Programming IC Chips 256K 32K X 8 5 Volt Only Cmos Flash Memory AT29C256

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

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

                                                                                                           

*NOTICE: Stresses beyond those listed under “Absolute Maximum 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 indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Contact Details
Anterwell Technology Ltd.

Contact Person: Miss. Sharon Yang

Tel: 86-755-61169882

Fax: 86-755-613169859

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