HM62256ALP-70G High Speed CMOS Static RAM Memory IC 8-Bit DIP-28

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HM62256ALP-70G High Speed CMOS Static RAM Memory IC 8-Bit DIP-28 HM62256ALP-70G High Speed CMOS Static RAM Memory IC 8-Bit DIP-28 is a high-performance 256K-bit CMOS static RAM organized as 32,768 words by 8 bits. Designed for fast data access with a maximum access time of 70ns, this memory IC offers low power consumption and direct TTL compatibility. Housed in a standard DIP-28 package, it is ideal for microprocessor-based systems, industrial controllers, embedded applications, data buffering, and memory expansion projects. The device features fully static operation, eliminating the need for refresh cycles and ensuring reliable data retention while powered. Features High-speed 70ns access time for fast memory operations. 32K × 8-bit organization providing 256K-bit storage capacity. Low power CMOS technology. Fully static operation with no refresh required. Direct TTL compatible inputs and outputs. Standard DIP-28 package for easy prototyping. Low standby current consumption. Reliable data retention during operation. Suitable for embedded and industrial applications. Simple interface with microprocessors and microcontrollers. Specifications Parameter Details Model Number HM62256ALP-70G Memory Type CMOS Static RAM Memory Organization 32K × 8 Bits Memory Capacity 256Kbit Access Time 70nsec Supply Voltage 4.5V to 5.5V Nominal Supply Voltage 5V Data Bus Width 8 Bits Address Inputs 15 Operating Mode Fully Static Input Compatibility TTL Compatible Output Configuration Three-State Outputs Standby Current (Typical) 1mA Operating Current 85mA Maximum Technology CMOS Package Type DIP-28 Mounting Type Through Hole Operating Temperature 0°C to 70°C Dimensions Pin Configuration Pin Number Pin Name Function/Description 1 A14 Address Input Bit 14. 2 A12 Address Input Bit 12. 3 A7 Address Input Bit 7. 4 A6 Address Input Bit 6. 5 A5 Address Input Bit 5. 6 A4 Address Input Bit 4. 7 A3 Address Input Bit 3. 8 A2 Address Input Bit 2. 9 A1 Address Input Bit 1. 10 A0 Address Input Bit 0. 11 DQ0 Data Input / Output Bit 0. 12 DQ1 Data Input / Output Bit 1. 13 DQ2 Data Input / Output Bit 2. 14 GND Ground Supply Connection. 15 DQ3 Data Input / Output Bit 3. 16 DQ4 Data Input / Output Bit 4. 17 DQ5 Data Input /Output Bit 5. 18 DQ6 Data Input /Output Bit 6. 19 DQ7 Data Input /Output Bit 7. 20 CE̅ Chip Enable Input (Active Low). 21 A10 Address Input Bit 10. 22 OE̅ Output Enable Input (Active Low). 23 A11 Address Input Bit 11. 24 A9 Address Input Bit 9. 25 A8 Address Input Bit 8. 26 A13 Address Input Bit 13. 27 WE̅ Write Enable Input (Active Low). 28 VCC Positive Power Supply (+5V). Applications Microprocessor memory expansion. Embedded control systems. Industrial automation equipment. Data acquisition systems. Communication devices. Digital instrumentation. Buffer memory applications. Educational and development boards. Legacy computer hardware repairs. Custom electronic projects. Package Contents 1 x HM62256ALP-70G High Speed CMOS Static RAM Memory IC 8-Bit DIP-28 Datasheet HM62256ALP-70G