Encyclopedia Entry: 71V67903S85BQI

Product Information Overview

Category: Integrated Circuit (IC)

Use: The 71V67903S85BQI is a high-performance synchronous dynamic random-access memory (SDRAM) IC. It is commonly used in various electronic devices and systems that require fast and reliable data storage and retrieval.

Characteristics: - High-speed operation - Low power consumption - Large storage capacity - Synchronous interface - Multiple banks for concurrent access - Error correction capabilities

Package: The 71V67903S85BQI is available in a compact and durable plastic package, designed to protect the IC from external factors such as moisture and physical damage.

Essence: This IC serves as a crucial component in modern electronic devices, enabling efficient and reliable data storage and retrieval operations.

Packaging/Quantity: The 71V67903S85BQI is typically sold in reels or trays, with each reel or tray containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the manufacturer and supplier.

Specifications

• Memory Type: Synchronous Dynamic Random-Access Memory (SDRAM)
• Organization: 8 Meg x 16
• Voltage Supply: 3.3V
• Clock Frequency: Up to 133 MHz
• Access Time: 5.4 ns
• Operating Temperature Range: -40°C to +85°C
• Package Type: 48-pin TSOP II

Detailed Pin Configuration

The 71V67903S85BQI features a 48-pin Thin Small Outline Package (TSOP II). The pin configuration is as follows:

1. VDD
2. DQ0
3. DQ1
4. DQ2
5. DQ3
6. DQ4
7. DQ5
8. DQ6
9. DQ7
10. VSS
11. DQ8
12. DQ9
13. DQ10
14. DQ11
15. DQ12
16. DQ13
17. DQ14
18. DQ15
19. VSS
20. A0
21. A1
22. A2
23. A3
24. A4
25. A5
26. A6
27. A7
28. A8
29. A9
30. A10
31. A11
32. A12
33. A13
34. A14
35. A15
36. /CAS
37. /RAS
38. /WE
39. /CS0
40. /CS1
41. /CS2
42. /CS3
43. /CKE
44. /CLK
45. /LDQM
46. /UDQM
47. /DQS
48. VDD

Functional Features

• High-speed data transfer with synchronous interface
• Multiple banks for concurrent access, improving overall memory performance
• Error correction capabilities enhance data integrity and reliability
• Low power consumption, making it suitable for battery-powered devices
• Automatic self-refresh and power-down modes for efficient power management

Advantages and Disadvantages

Advantages: - High-speed operation enables fast data access and transfer - Large storage capacity meets the demands of modern applications - Error correction capabilities ensure data integrity - Low power consumption extends battery life in portable devices - Compact package size allows for easy integration into various electronic systems

Disadvantages: - Sensitive to electrostatic discharge (ESD), requiring proper handling during installation and maintenance - Limited compatibility with older systems that do not support synchronous interface

Working Principles

The 71V67903S85BQI operates based on the principles of synchronous dynamic random-access memory (SDRAM). It utilizes a synchronous interface, where data transfers are synchronized with an external clock signal. The IC consists of multiple memory banks, allowing for concurrent access and improved performance. It also incorporates error correction techniques to ensure data integrity.

Detailed Application Field Plans

The 71V67903S85BQI finds applications in various electronic devices and systems, including but not limited to: - Personal computers - Laptops and notebooks - Servers and data centers - Networking equipment - Telecommunications devices - Consumer electronics (e.g., digital cameras, gaming consoles)

Detailed and Complete Alternative Models

1. 71V67903S85BQG8: Similar to 71V67903S85BQI, but with a different package type (FBGA)
2. 71V67903S85BQGI: Improved version with higher clock frequency and lower access time
3. 71V67903