Maxim DS1222+

静态 RAM（SRAM）4.5V ~ 5.5V0°C ~ 70°C

Overview

The DS1220AB-120 and DS1220AD 16k Nonvolatile (NV) SRAMs are 16,384-bit, fully static, NV SRAMs organized as 2048 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry that constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption. The NV SRAMs can be used in place of existing 2k x 8 SRAMs directly conforming to the popular bytewide 24-pin DIP standard. The devices also match the pinout of the 2716 EPROM and the 2816 EEPROM, allowing direct substitution while enhancing performance. There is no limit on the number of write cycles that can be executed and no additional support circuitry is required for microprocessor interfacing.

Features

Tube Package
Available in the 14-DIP (0.300, 7.62mm) package
Static RAM (SRAM) as controller type
Operating temperature of 0°C~70°C

Through Hole Mounting Type

Applications

There are a lot of Maxim Integrated
DS1222 Memory Controllers applications.

• Servers
• Medical Instrumentation and Industrial Products
• Industrial USB Flash Drive
• eUSB, embedded USB module
• Ultra durable Flash Drive
• Security Flash Drive
• Multi-Chip-Package (MCP)
• Disk-on-Board
• High reliability & industrial Compact FlashTM Cards (CFC)
• Solid State Disks (SSD)