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TC55257BPL-85L from TOS,TOSHIBA

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TC55257BPL-85L

Manufacturer: TOS

85ns; V(dd/in): -0.3 to +7.0V; silicon gate CMOS: 32,768 word x 8-bit staic RAM

Partnumber Manufacturer Quantity Availability
TC55257BPL-85L,TC55257BPL85L TOS 13 In Stock

Description and Introduction

85ns; V(dd/in): -0.3 to +7.0V; silicon gate CMOS: 32,768 word x 8-bit staic RAM The TC55257BPL-85L is a 32K x 8-bit CMOS static RAM (SRAM) manufactured by Toshiba. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Organization:** 32K x 8-bit  
- **Technology:** CMOS  
- **Operating Voltage:** 5V ±10%  
- **Access Time:** 85 ns  
- **Operating Temperature Range:** Commercial (0°C to +70°C)  
- **Package Type:** 600-mil 28-pin DIP (Dual In-line Package)  
- **Pin Count:** 28  
- **I/O Type:** Common input/output (I/O)  

### **Descriptions:**  
- The TC55257BPL-85L is a high-speed, low-power static RAM designed for applications requiring fast data access and low power consumption.  
- It features a fully static operation, meaning no refresh cycles are required.  
- The device is compatible with TTL levels for easy interfacing with microprocessors and other logic circuits.  

### **Features:**  
- **Low Power Consumption:**  
  - Active current: 70 mA (typical)  
  - Standby current: 10 µA (typical)  
- **Fully Static Operation:** No clock or refresh required.  
- **Tri-State Outputs:** Allows direct connection to a common bus.  
- **TTL-Compatible Inputs and Outputs:** Ensures easy interfacing.  
- **Single 5V Power Supply:** Simplifies system design.  
- **High Noise Immunity:** Ensures reliable operation in noisy environments.  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

85ns; V(dd/in): -0.3 to +7.0V; silicon gate CMOS: 32,768 word x 8-bit staic RAM

Alternative Part Number

  • IS62C256AL-45ULI --: 32K x 8 low-power CMOS SRAM with comparable 5V operation and pinout, widely available and often used as a drop-in replacement for Toshiba 32Kx8 SRAMs.
  • AS6C62256-55PCN --: 32K x 8 low-power SRAM in DIP package with 5V supply, functionally equivalent and commonly cross-referenced for TC55257 series parts.
  • CY62256NLL-70PXC --: 32K x 8 low-power SRAM with similar access time and pin-compatible DIP package, a well-established alternative for legacy 32Kx8 SRAM designs.

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