N25S818HA: Serial SRAM Memory, 256-kb, 1.8 V

Datasheet: 256 kb Low Power Serial SRAMs
Rev. 12 (147.0kB)
Product Overview
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Product Change Notification
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.
Features
 
  • 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
Technical Documentation & Design Resources
Collateral Brochures (1) Package Drawings (2)
Data Sheets (1)  
Availability & Samples
Specifications
Interactive Block Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
N25S818HAS21I Active
Pb-free
Halide free
N25S818HA SOIC-8 751AZ 3 260 Tube 96 $1.1259
N25S818HAT21I Active
Pb-free
Halide free
N25S818HA TSSOP-8 948S-01 3 260 Tube 100 $1.1259
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2020-09-02) : 21,600

Product
Description
Pricing ($/Unit)
Compliance
Status
Type
Density
Organization (bits)
fcycle Max (MHz)
VCC Min (V)
VCC Max (V)
Istandby Typ (µA)
Package Type
N25S818HAS21I  
 $1.1259 
Pb
H
 Active   
Serial
256 kb
32k x 8
16
1.7
1.95
0.2
SOIC-8
N25S818HAT21I  
 $1.1259 
Pb
H
 Active   
Serial
256 kb
32k x 8
16
1.7
1.95
0.2
TSSOP-8
Case Outlines
751AZ    948S-01   
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