Serial SRAM Memory, 256-kb, 1.8 V

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Overview

The ON Semiconductor serial SRAM family includes several integrated memory devices including this 256 kb serially accessed Static Random Access Memory, internally organized as 32 k words by 8 bits. The devices are designed and fabricated using advanced CMOS technology to provide both high-speed performance and low power. The devices operate with a single chip select (CS) input and use a simple Serial Peripheral Interface (SPI) serial bus. A single data in and data out line is used along with a clock to access data within the devices. The N25S818HA devices include a HOLD pin that allows communication to the device to be paused. While paused, input transitions will be ignored. The devices can operate over a wide temperature range of -40°C to +85°C and can be available in several standard package offerings.

  • 1.7 to 1.95 V power supply range
  • Very low standby current - typical Isb as low as 200 nA
  • Very low operating current - as low as 3 mA
  • Simple memory control: single chip select (CS), serial input (SI) and serial output (SO)
  • Flexible operating modes: word read and write, page mode (32 word page), and burst mode (full array)
  • 32 K x 8 bit organization
  • Self timed write cycles
  • Built-in write protection (CS high)
  • HOLD pin for pausing communication

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N25S818HAS21I

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Active

CAD Model

Pb

A

H

P

SOIC-8

3

260

TUBE

96

Y

Serial

256 kb

32k x 8

16

1.7

1.95

0.2

$1.1259

More Details

N25S818HAT21I

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Active

CAD Model

Pb

A

H

P

TSSOP-8

3

260

TUBE

100

Y

Serial

256 kb

32k x 8

16

1.7

1.95

0.2

$1.1259

More Details

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