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TC551664BJ-15 from TOSHIBA

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TC551664BJ-15

Manufacturer: TOSHIBA, TOS, TOSH

65,536-WORD BY 16-BIT CMOS STATIC RAM

Partnumber Manufacturer Quantity Availability
TC551664BJ-15,TC551664BJ15 TOSHIBA, TOS, TOSH 2724 In Stock

Description and Introduction

65,536-WORD BY 16-BIT CMOS STATIC RAM The TC551664BJ-15 is a 1Mbit (64K x 16) CMOS static RAM (SRAM) manufactured by Toshiba. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Organization:** 64K words × 16 bits  
- **Density:** 1 Megabit (1,048,576 bits)  
- **Supply Voltage:** 5V ±10%  
- **Access Time:** 15 ns (max)  
- **Operating Current:** 70 mA (max)  
- **Standby Current:** 10 μA (max, CMOS level)  
- **Package:** 44-pin TSOP (Thin Small Outline Package)  
- **Operating Temperature Range:** 0°C to +70°C (commercial grade)  
- **Data Retention Voltage:** 2V (min)  

### **Descriptions:**  
- **Type:** High-speed CMOS static RAM  
- **Function:** Volatile memory for fast read/write operations  
- **Interface:** Parallel (16-bit data bus)  
- **Control Signals:** Chip Enable (CE), Output Enable (OE), Write Enable (WE)  

### **Features:**  
- **High-Speed Operation:** 15 ns access time  
- **Low Power Consumption:**  
  - Active current: 70 mA (max)  
  - Standby current: 10 μA (max) in CMOS mode  
- **Fully Static Operation:** No clock or refresh required  
- **TTL-Compatible Inputs/Outputs:**  
- **Single 5V Power Supply:**  
- **Three-State Outputs:**  
- **Battery Backup Capability:** Data retention at reduced voltage (2V min)  

This SRAM is commonly used in applications requiring fast, low-power memory, such as embedded systems, networking equipment, and industrial controls.  

Let me know if you need further details.

Application Scenarios & Design Considerations

65,536-WORD BY 16-BIT CMOS STATIC RAM

Alternative Part Number

  • IS61C6416AL-15TLI --: 64K x 16 asynchronous SRAM with 15 ns access time, functionally equivalent to the TC551664BJ-15 and widely available.
  • CY7C1021CV33-15ZXC --: 64K x 16 high-speed CMOS SRAM with 15 ns speed grade, pin-compatible replacement for the Toshiba part.
  • AS6C6416-15TIN --: 64K x 16 low-power SRAM with 15 ns access time, drop-in alternative often used to replace discontinued Toshiba SRAMs.
  • IS61C6416AL-15T --: 64K x 16 asynchronous SRAM with 15 ns access time, functionally equivalent to the TC551664BJ-15 and widely available.
  • CY7C1041CV33-15ZXC --: 256K x 16 high-speed SRAM with 15 ns speed grade, suitable replacement for the 64K x 16 SRAM in most designs.
  • AS6C6416-55TIN --: Low-power 64K x 16 CMOS SRAM in the same organization; slower 55 ns access but pin-compatible and a good drop-in for non-timing-critical applications.
  • AS7C164A-15TCN --: 64K x 16 asynchronous SRAM with 15 ns access time, pin-compatible alternative to the TC551664BJ-15.

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