Greenwich Instruments 256kbit 70ns NVRAM, 28-Pin PDIP, GR3281-HT

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Microchip 256kbit EPROM 28-Pin PDIP, AT27C256R-70PU
RS 제품 번호
127-6559

개당가격(5개가 1팩안에)

₩4,143.52

RS 제품 번호:
172-2331
제조사 부품 번호:
GR3281-HT
제조업체:
Greenwich Instruments
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브랜드

Greenwich Instruments

Memory Size

256kbit

Organisation

32K x 8 bit

Interface Type

Parallel

Data Bus Width

8bit

Maximum Random Access Time

70ns

Mounting Type

Through Hole

Package Type

PDIP

Pin Count

28

Dimensions

37 x 18 x 7.3mm

Length

37mm

Width

18mm

Height

7.3mm

Maximum Operating Supply Voltage

5.5 V

Maximum Operating Temperature

+85 °C

Number of Words

32K

Number of Bits per Word

8bit

Minimum Operating Temperature

-40 °C

Minimum Operating Supply Voltage

4.75 V

COO (Country of Origin):
GB
The GR3281 is an industrial temperature range 32,768 word by 8 bits (32k x 8) non-volatile static RAM fabricated from advanced silicon gate CMOS technology and a high reliability lithium power cell.

The 28W dil pinout of the GR3281 conforms to the JEDEC standards and is fully compatible with normal static RAM.

The power down circuit is fully automatic and is referenced at 4.5V. At this point the GR3281 is write protected by an internal inhibit function for data protection and the memory contents are retained by the lithium power source.

Power down is very fast, this being essential for data integrity, taking a maximum 15 microseconds to power down from 5V to 0V. This is much faster than any system power failure conditions; therefore there are no special conditions required when installing the GR3281.

The GR3281 can, without external power, retain data almost indefinitely; the limiting factor being the shelf life of the lithium power cell, typically 10 years.

ROHS Compliant.

For these non-cancellable (NC), and non-returnable (NR) products, Terms and Conditions apply.


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