PRODUCT DESCRIPTION
The SST30VR021/022/023 are ROM/RAM combo chips consisting of 2 Mbit Read Only Memory organized as 256 KBytes and Static Random Access Memory organized as 128, 256, and 32 KBytes.

FEATURES:
• ROM + SRAM ROM/RAM Combo
    – SST30VR021: 256K x8 ROM + 128K x8 SRAM
    – SST30VR022: 256K x8 ROM + 256K x8 SRAM
    – SST30VR023: 256K x8 ROM + 32K x8 SRAM
• ROM/RAM combo on a monolithic chip
• Equivalent ComboMemory (Flash + SRAM): SST31LF021E for code development and pre-production
• Wide Operating Voltage Range: 2.7-3.3V
• Chip Access Time
    – SST30VR022 70 ns
    – SST30VR021/023 500 ns
• Low Power Dissipation:
    – Standby: 3 µW (Typical)
    – Operating: 10 mW (Typical)
• Fully Static Operation
    – No clock or refresh required
• Three state Outputs
• Packages Available
    – 32-pin TSOP (8mm x14mm)