N25S818HA: Serial SRAM Memory, 256-kb, 1.8 V
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
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Collateral Brochures (1)
Package Drawings (2)
Data Sheets (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| N25S818HAS21I | Active | Pb-free
Halide free | SOIC-8 | 751AZ | 3 | Tube | 100 | Contact BDTIC |
| N25S818HAT21I | Active | Pb-free
Halide free | TSSOP-8 | 948S-01 | 3 | Tube | 100 | Contact BDTIC |
Specifications
| Product | Type | Density | Organization (bits) | fcycle Max (MHz) | VCC Min (V) | VCC Max (V) | Istandby Typ (µA) |
|---|
| N25S818HAS21I | Serial | 256 kb | 32k x 8 | 16 | 1.7 | 1.95 | 0.2 |
| N25S818HAT21I | Serial | 256 kb | 32k x 8 | 16 | 1.7 | 1.95 | 0.2 |
