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M5M5256CFP-70LL from MIT

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M5M5256CFP-70LL

Manufacturer: MIT, OKI

262144-BIT (32768-WORD BY 8-BIT) CMOS STATIC RAM

Partnumber Manufacturer Quantity Availability
M5M5256CFP-70LL,M5M5256CFP70LL MIT, OKI 6514 In Stock

Description and Introduction

262144-BIT (32768-WORD BY 8-BIT) CMOS STATIC RAM The part **M5M5256CFP-70LL** is a **256K-word × 8-bit (2M-bit) CMOS static RAM (SRAM)** manufactured by **Mitsubishi Electric**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Organization:** 256K × 8-bit  
- **Density:** 2M-bit  
- **Access Time:** 70 ns  
- **Operating Voltage:** 5V ±10%  
- **Operating Temperature Range:** Commercial (0°C to +70°C)  
- **Package Type:** 28-pin Plastic SOP (Small Outline Package)  
- **Pin Count:** 28  

### **Descriptions:**
- **Type:** High-speed CMOS static RAM  
- **Function:** Provides fast, low-power data storage for embedded systems, industrial applications, and computing devices.  
- **Interface:** Parallel (8-bit data bus)  
- **Refresh:** Not required (static RAM retains data without refresh cycles).  

### **Features:**
1. **Low Power Consumption:**  
   - Operating current: 60 mA (typical)  
   - Standby current: 10 µA (typical) in CMOS mode  
2. **High-Speed Operation:**  
   - 70 ns access time  
3. **Wide Voltage Tolerance:**  
   - Supports 5V ±10% supply voltage  
4. **Fully Static Operation:**  
   - No clock or refresh required  
5. **Tri-State Output:**  
   - Allows bus sharing in multi-memory systems  
6. **TTL-Compatible Inputs/Outputs:**  
   - Ensures compatibility with standard logic levels  
7. **Reliable Packaging:**  
   - 28-pin SOP for compact PCB mounting  

This SRAM is suitable for applications requiring moderate speed and low power, such as embedded systems, networking devices, and industrial controls.  

(Note: This part may be obsolete; verify availability with authorized distributors.)

Application Scenarios & Design Considerations

262144-BIT (32768-WORD BY 8-BIT) CMOS STATIC RAM

Alternative Part Number

  • IS62C256AL-70TLI --: 32K x 8 low-power CMOS SRAM with 70 ns access time, functionally equivalent to the original 32K x 8 SRAM and widely available.
  • CY62256NLL-70ZXI --: 32K x 8 low-power SRAM, 70 ns speed grade, pin-compatible with standard 32K x 8 SRAM devices and a common drop-in replacement.
  • AS6C62256-55SIN --: 32K x 8 low-power CMOS SRAM with 55 ns access time (faster than 70 ns requirement), pin-compatible and often used as a replacement for legacy 62256-type SRAMs.
  • AS6C62256-70PCN --: 32K x 8 low-power SRAM, 70 ns speed grade, pin-compatible replacement for the M5M5256 series with a different naming scheme.
  • CY62256NLL-70PXC --: 32K x 8 low-power SRAM with 70 ns access time, drop-in compatible with the M5M5256CFP-70LL and from a distinct manufacturer series.

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