Anterwell Technology Ltd.

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AT27C256R-15PCProgramming IC Chips Original DIP Electronics Chip 256K OTP EPROM

Good quality Programmable IC Chips for sales
Good quality Programmable IC Chips for sales
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AT27C256R-15PCProgramming IC Chips Original DIP Electronics Chip 256K OTP EPROM

China AT27C256R-15PCProgramming IC Chips  Original DIP Electronics Chip 256K OTP EPROM supplier

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Product Details:

Place of Origin: Malaysia
Brand Name: A tmel
Certification: Original Factory Pack
Model Number: AT27C256R-15PC

Payment & Shipping Terms:

Minimum Order Quantity: 5pcs
Price: Negotiation
Packaging Details: please contact me for details
Delivery Time: 1 Day
Payment Terms: T/T , Western Union,PayPal
Supply Ability: 780PCS
Detailed Product Description
Programming Algorithm: 100 µs/byte Package: PDIP-28
Memory: 256k Main Line:: Ic,module,transistor,diodes,capacitor,resistor Etc
Mark: OTP EPROM Mold: Programmable Read

 

Original DIP Programming IC Chips 256K OTP EPROM AT27C256R-15PC

 

256K (32K x 8) OTP EPROM AT27C256R-15PC


Features

 

• Fast Read Access Time - 45 ns

• Low-Power CMOS Operation – 100 µA max. Standby – 20 mA max. Active at 5 MHz

• JEDEC Standard Packages – 28-Lead 600-mil PDIP – 32-Lead PLCC – 28-Lead TSOP and SOIC

• 5V ± 10% Supply

• High Reliability CMOS Technology – 2,000V ESD Protection – 200 mA Latchup Immunity • Rapid™ Programming Algorithm - 100 µs/byte (typical)

• CMOS and TTL Compatible Inputs and Outputs

• Integrated Product Identification Code

• Commercial, Industrial and Automotive Temperature Ranges

 

Description

 

The AT27C256R is a low-power, high-performance 262,144-bit one-time programmable read only memory (OTP EPROM) organized 32K by 8 bits. It requires only one 5V power supply in normal read mode operation.

 

Any byte can be accessed in less than 45 ns, eliminating the need for speed reducing WAIT states on high-performance microprocessor systems.

 

Atmel’s scaled CMOS technology provides low-active power consumption, and fast programming. Power consumption is typically only 8 mA in Active Mode and less than 10 µA in Standby.

 

AT27C256R-15PCProgramming IC Chips  Original DIP Electronics Chip 256K OTP EPROM

AT27C256R-15PCProgramming IC Chips  Original DIP Electronics Chip 256K OTP EPROM

 

The AT27C256R is available in a choice of industry standard JEDEC-approved one time programmable (OTP) plastic DIP, PLCC, SOIC, and TSOP packages.

 

All devices feature two-line control (CE, OE) to give designers the flexibility to prevent bus contention. With 32K byte storage capability, the AT27C256R allows firmware to be stored reliably and to be accessed by the system without the delays of mass storage media.

 

Atmel’s 27C256R has additional features to ensure high quality and efficient production use. The Rapid™ Programming Algorithm reduces the time required to program the part and guarantees reliable programming. Programming time is typically only 100 µs/byte.

 

The Integrated Product Identification Code electronically identifies the device and manufacturer. This feature is used by industry standard programming equipment to select the proper programming algorithms and voltages.

 

 

System Considerations

 

Switching between active and standby conditions via the Chip Enable pin may produce transient voltage excursions. Unless accommodated by the system design, these transients may exceed data sheet limits, resulting in device non-conformance.

 

At a minimum, a 0.1 µF high frequency, low inherent inductance, ceramic capacitor should be utilized for each device.

 

This capacitor should be connected between the VCC and Ground terminals of the device, as close to the device as possible.

 

Additionally, to stabilize the supply voltage level on printed circuit boards with large EPROM arrays, a 4.7 µF bulk electrolytic capacitor should be utilized, again connected between the VCC and Ground terminals. This capacitor should be positioned as close as possible to the point where the power supply is connected to the array.

 

 

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