The ON Semiconductor serial SRAM family includes severalintegrated memory devices including this 1 Mb serially accessedStatic Random Access Memory, internally organized as 128 K wordsby 8 bits. The devices are designed and fabricated usingON Semiconductor’s advanced CMOS technology to provide bothhigh-speed performance and low power. The devices operate with asingle chip select (CS) input and use a simple Serial PeripheralInterface (SPI) protocol. In SPI mode, a single data-in (SI) anddata-out (SO) line is used along with the clock (SCK) to access datawithin the device. In DUAL mode, two multiplexed data-in/data-out(SIO0-SIO1) lines are used and in QUAD mode, four multiplexeddata-in/data-out (SIO0-SIO3) lines are used with the clock to accessthe memory. The devices can operate over a wide temperature range of−40°C to +85°C and are available in a 8-lead TSSOP package. TheN01S830xA device has two different variations, a HOLD version thatallows communication to the device to be paused and a batteryback-up (BBU) version to be used with a battery to retain data whenpower is lost.
Feature
- Power Supply Range: 2.5 to 5.5 V
- Very Low Typical Standby Current: < 4 µA
- Very Low Operating Current: < 10 mA
- Simple Serial Interface- Single-bit SPI Access - DUAL-bit and QUAD-bit SPI-like Access
- Flexible Operating Modes- Word Mode- Page Mode - Burst Mode (Full Array)
- High Frequency Read and Write Operation - Clock Frequency 20 MHz
- Functional Options- HOLD Pin for Pausing Operation - VBAT Pin for Battery−Back up
- Built-in Write Protection (CS High)
- High Reliability- Unlimited Write Cycles
Applications
- Smart Meter
- Cardiac Monitoring Device
- Video Processing
- Event Recorder
- Alarm System
- MP3 Interface for Automobile
- Medical Monitoring Device
- Game Controller
- IP Camera Buffer
- Battery Charger
- Laser Receiver System
- GPS Offender Tracking
- Programmable Logic Controller
- IP Radio
