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IDT71V2548S133BG from IDT

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IDT71V2548S133BG

Manufacturer: IDT

128K x 36, 256K x 18 3.3V Synchronous ZBT SRAMs 2.5V I/O, Burst Counter Pipelined Outputs

Partnumber Manufacturer Quantity Availability
IDT71V2548S133BG IDT 23 In Stock

Description and Introduction

128K x 36, 256K x 18 3.3V Synchronous ZBT SRAMs 2.5V I/O, Burst Counter Pipelined Outputs The IDT71V2548S133BG is a high-speed 3.3V CMOS synchronous SRAM manufactured by Integrated Device Technology (IDT). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Density:** 256K x 18 (4.5 Mbit)  
- **Organization:** 262,144 words × 18 bits  
- **Supply Voltage:** 3.3V ± 0.3V  
- **Speed:** 133 MHz (7.5 ns access time)  
- **Operating Temperature Range:** Commercial (0°C to +70°C)  
- **Package:** 119-ball BGA (Ball Grid Array)  
- **I/O Type:** Common I/O (shared input/output)  
- **Interface:** Synchronous (pipelined or flow-through options)  
- **Refresh:** Not required (static RAM)  

### **Descriptions:**
- The IDT71V2548S133BG is a synchronous SRAM designed for high-performance applications requiring fast data access.  
- It supports both pipelined and flow-through operation modes.  
- The device operates with a single 3.3V power supply and is compatible with LVTTL I/O levels.  
- It features a common I/O structure, allowing for efficient data transfer.  

### **Features:**
- **High-Speed Operation:** 133 MHz clock frequency with 7.5 ns access time.  
- **Low Power Consumption:** Standby and operating power-saving modes.  
- **Synchronous Operation:** Addresses, data, and control signals are registered on the rising edge of the clock.  
- **Byte Write Control:** Individual byte write enable signals for flexible write operations.  
- **Self-Timed Write Cycle:** Simplifies timing requirements.  
- **JTAG Boundary Scan:** Supports IEEE 1149.1-compliant boundary scan for testing.  
- **Industrial-Grade Options Available:** Some variants support extended temperature ranges.  

This information is based on the manufacturer's datasheet for the IDT71V2548S133BG.

Application Scenarios & Design Considerations

128K x 36, 256K x 18 3.3V Synchronous ZBT SRAMs 2.5V I/O, Burst Counter Pipelined Outputs

Alternative Part Number

  • IS61WV25616EDBLL-10TLI --: ISSI SRAM with comparable 256Kx16 organization and 10ns speed; widely available drop-in style alternative to the IDT 71V2548 series.
  • CY7C1041G-10ZSXI --: Cypress 256Kx16 asynchronous SRAM with similar density and access time, commonly used as a second-source replacement for IDT SRAM parts.
  • AS7C3256A-10TCN --: Alliance Memory 256Kx16 SRAM offered as a legacy-compatible alternative to IDT 71V-series parts, with matching density and speed grade.
  • IS61WV25616EDBLL-10BLI --: Similar 256Kx16 asynchronous SRAM in a 119-pin BGA package with comparable speed and voltage, a common drop-in style alternative from a different vendor.
  • AS7C34098A-10TIN --: 256Kx16 low-power asynchronous SRAM with comparable timing and supply voltage, offered as a legacy-compatible alternative to IDT SRAM parts.

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