IDT7204L25SO

Product Overview

• Category: Integrated Circuit (IC)
• Use: Memory device
• Characteristics: Low-power, high-speed, static RAM
• Package: Small Outline (SO)
• Essence: Non-volatile storage for digital data
• Packaging/Quantity: Sold in reels of 250 units

Specifications

• Type: Static Random Access Memory (SRAM)
• Organization: 256K x 4 bits
• Supply Voltage: 5V
• Access Time: 25ns
• Operating Temperature Range: -40°C to +85°C
• Power Dissipation: 150mW (typical)

Detailed Pin Configuration

The IDT7204L25SO has a total of 28 pins. The pin configuration is as follows:

1. Chip Enable (CE)
2. Output Enable (OE)
3. Write Enable (WE)
4. Address Inputs (A0-A17)
5. Data Inputs/Outputs (DQ0-DQ3)
6. Ground (GND)
7. Vcc (+5V)
8. Data Inputs/Outputs (DQ4-DQ7)
9. Address Inputs (A18-A20)
10. No Connection (NC)
11. Data Inputs/Outputs (DQ8-DQ11)
12. Data Inputs/Outputs (DQ12-DQ15)
13. Address Inputs (A21-A23)
14. No Connection (NC)
15. Data Inputs/Outputs (DQ16-DQ19)
16. Data Inputs/Outputs (DQ20-DQ23)
17. Address Inputs (A24-A26)
18. No Connection (NC)
19. Data Inputs/Outputs (DQ24-DQ27)
20. Data Inputs/Outputs (DQ28-DQ31)
21. Address Inputs (A27-A29)
22. No Connection (NC)
23. Data Inputs/Outputs (DQ32-DQ35)
24. Data Inputs/Outputs (DQ36-DQ39)
25. Address Inputs (A30-A32)
26. No Connection (NC)
27. Data Inputs/Outputs (DQ40-DQ43)
28. Data Inputs/Outputs (DQ44-DQ47)

Functional Features

• High-speed operation allows for quick data access.
• Low-power consumption makes it suitable for battery-powered devices.
• Static RAM design ensures data retention even without power supply.
• Easy integration into various digital systems due to standard interface.

Advantages and Disadvantages

Advantages: - Fast access time enables efficient data retrieval. - Low power consumption prolongs battery life in portable devices. - Non-volatile storage ensures data retention during power interruptions.

Disadvantages: - Limited storage capacity compared to other memory devices. - Relatively higher cost per bit compared to dynamic RAM (DRAM).

Working Principles

The IDT7204L25SO is a static RAM that stores digital data using flip-flops. It operates by storing each bit of data in a dedicated flip-flop, which retains its state until changed. The stored data can be accessed and modified at high speeds, making it suitable for applications requiring fast read/write operations.

Detailed Application Field Plans

The IDT7204L25SO is commonly used in the following applications:

1. Embedded Systems: Provides non-volatile storage for program code and data in microcontrollers and microprocessors.
2. Communication Systems: Used as buffer memory in networking equipment, routers, and switches.
3. Industrial Automation: Stores configuration data and temporary variables in programmable logic controllers (PLCs).
4. Automotive Electronics: Utilized in engine control units (ECUs) and infotainment systems for data storage and processing.
5. Medical Devices: Used for data buffering and temporary storage in medical equipment such as patient monitors and imaging systems.

Detailed and Complete Alternative Models

1. IDT7204L25TP - Same specifications but in a Thin Plastic (TP) package.
2. IDT7204L25J - Same specifications but in a Ceramic Dual Inline Package (DIP).
3. IDT7204L25DB - Same specifications but in a Dual Flat No-Lead (DFN) package.

These alternative models offer the same functionality and performance as the IDT7204L25SO but come in different packages to suit specific application requirements.

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