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HM62W16258BLTTI-7 from HITACHI

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HM62W16258BLTTI-7

Manufacturer: HITACHI

4 M SRAM (256-kword x 16-bit)
Partnumber Manufacturer Quantity Availability
HM62W16258BLTTI-7,HM62W16258BLTTI7 HITACHI 86 In Stock

Description and Introduction

4 M SRAM (256-kword x 16-bit) The part **HM62W16258BLTTI-7** is a **2M x 16-bit (32M-bit) CMOS Synchronous DRAM (SDRAM)** manufactured by **HITACHI**.  

### Key Specifications:  
- **Organization**: 2M words × 16 bits  
- **Density**: 32M-bit  
- **Supply Voltage**: 3.3V ± 0.3V  
- **Access Time**: 7ns (CL=3)  
- **Package**: 54-pin TSOP-II  
- **Refresh Cycles**: 4096 (64ms refresh interval)  
- **Operating Temperature**: Industrial (-40°C to +85°C)  
- **Interface**: LVTTL-compatible  
- **Burst Length**: 1, 2, 4, 8, or full page  
- **CAS Latency (CL)**: 2 or 3  

This SDRAM is designed for high-speed data transfer applications.  

(Source: HITACHI datasheet for HM62W16258BLTTI-7)

Application Scenarios & Design Considerations

4 M SRAM (256-kword x 16-bit)

Alternative Part Number

  • IS61WV25616BLL-10TLI --: 256K x 16 asynchronous SRAM with similar 44-pin TSOP II package and 3.3V supply; widely available and commonly used as a drop-in replacement for Hitachi 256Kx16 SRAMs.
  • CY7C1041CV33-10ZXI --: 256K x 16 high-speed CMOS SRAM in 44-pin TSOP II, 3.3V, 10 ns access; functionally equivalent to the HM62W16258 series with comparable timing.
  • AS7C34096A-10TIN --: 512K x 8 asynchronous SRAM in 44-pin TSOP II, 3.3V; Alliance Memory specializes in legacy SRAM replacements and offers pin-compatible options for Hitachi SRAM families.

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