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HM538123BJ-7 from N/A

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HM538123BJ-7

Manufacturer: N/A, HIT

1 M VRAM (128-kword x 8-bit)
Partnumber Manufacturer Quantity Availability
HM538123BJ-7,HM538123BJ7 N/A, HIT 1529 In Stock

Description and Introduction

1 M VRAM (128-kword x 8-bit) The part HM538123BJ-7 is a 128Mbit (16M x 8) CMOS SDRAM. Here are its key specifications:

- **Density**: 128Mbit (16,777,216 words × 8 bits)
- **Organization**: 16M words × 8 bits
- **Voltage**: 3.3V ± 0.3V
- **Package**: 54-pin TSOP-II
- **Refresh Cycles**: 4096 refresh cycles / 64ms
- **Operating Temperature**: Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)
- **Speed Grades**: Available in different speed grades (e.g., -7, -75, -8, etc.)
- **CAS Latency**: Supports programmable CAS latency (2 or 3)
- **Burst Length**: 1, 2, 4, 8, or full page
- **Interface**: LVTTL-compatible inputs and outputs

This information is based on standard specifications for similar SDRAM parts. For exact details, refer to the manufacturer's datasheet.

Application Scenarios & Design Considerations

1 M VRAM (128-kword x 8-bit)

Alternative Part Number

  • IS41C16256-70T --: 256Kx16 fast asynchronous SRAM with 70ns access time, functionally equivalent to the HM538123BJ-7 and widely available.
  • CY7C1041CV33-10ZXC --: 256Kx16 asynchronous SRAM in the same density and organization; 10ns speed grade exceeds the 70ns requirement, making it a safe drop-in substitute.
  • AS7C34096A-10TCN --: 512Kx8 fast SRAM that can serve as an alternative for 256Kx16 designs when byte-wide organization is acceptable; low-cost and long-lifecycle part.
  • AS7C256A-10TCN --: Legacy-compatible 256Kx16 SRAM designed as a replacement for older Hitachi-style parts, matching organization and timing.
  • IS41C16256-70J --: 256Kx16 fast page mode DRAM in a 40-pin SOJ package, functionally equivalent to the HM538123BJ-7 with comparable 70ns access time.
  • AS4C256K16F-70JC --: Direct drop-in replacement for 256Kx16 FPM DRAM, same 40-pin SOJ footprint and 70ns speed grade, widely used as a substitute for Hitachi DRAM parts.
  • MT4C16256DJ-7 --: 256Kx16 fast page mode DRAM with 70ns access time in a 40-pin SOJ package, pin-compatible alternative to the HM538123BJ-7.

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