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AT27C2048-12PI
Product Overview
Category
AT27C2048-12PI belongs to the category of programmable read-only memory (PROM) chips.
Use
This chip is commonly used for storing permanent data that needs to be retained even when power is turned off. It allows users to program and store data permanently during manufacturing or in-field programming.
Characteristics
- Non-volatile: The stored data remains intact even without power.
- High storage capacity: The AT27C2048-12PI has a capacity of 2,048 kilobits (256 kilobytes).
- Fast access time: The chip operates at a speed of 120 nanoseconds.
- Low power consumption: It requires minimal power to operate efficiently.
Package
The AT27C2048-12PI is available in a 28-pin plastic dual in-line package (PDIP).
Essence
The essence of this PROM chip lies in its ability to provide non-volatile storage for critical data, ensuring its retention even in the absence of power.
Packaging/Quantity
The AT27C2048-12PI is typically packaged in tubes or trays, with each tube containing 25 chips or each tray containing 100 chips.
Specifications
- Manufacturer: Atmel Corporation
- Memory Type: Programmable Read-Only Memory (PROM)
- Organization: 256K x 8 bits
- Access Time: 120 ns
- Supply Voltage: 5V ±10%
- Operating Temperature Range: -40°C to +85°C
- Package Type: 28-pin PDIP
Detailed Pin Configuration
The AT27C2048-12PI has the following pin configuration:
``` __ __ A15|1 \/ 28|Vcc A12|2 27|A14 A7 |3 26|A13 A6 |4 25|A8 A5 |5 24|A9 A4 |6 23|A11 A3 |7 22|A10 A2 |8 21|OE# A1 |9 20|CE# A0 |10 19|WE# D0 |11 18|D7 D1 |12 17|D6 D2 |13 16|D5 GND|14 15|D4
```
Functional Features
- Easy programming: The AT27C2048-12PI can be programmed using standard PROM programming equipment.
- High reliability: The chip offers excellent data retention and endurance characteristics, ensuring long-term reliability.
- Electrical erasure: The entire chip can be erased electrically, allowing for easy reprogramming if required.
- Low power consumption: The chip operates on low power, making it suitable for battery-powered devices.
Advantages and Disadvantages
Advantages
- Non-volatile storage ensures data retention even without power.
- High storage capacity allows for ample data storage.
- Fast access time enables quick retrieval of stored information.
- Low power consumption prolongs battery life in portable devices.
Disadvantages
- Once programmed, the data cannot be modified or erased, limiting flexibility.
- Requires external programming equipment for initial programming.
Working Principles
The AT27C2048-12PI is based on the principle of electrical programming and non-volatile memory storage. It utilizes a grid of transistors to store binary data in the form of electrical charges. These charges are retained even when power is turned off, providing permanent data storage.
Detailed Application Field Plans
The AT27C2048-12PI finds applications in various fields, including: 1. Embedded systems: Used for storing firmware and configuration data. 2. Automotive electronics: Stores critical data for engine control units (ECUs) and other automotive systems. 3. Consumer electronics: Used in devices such as gaming consoles, set-top boxes, and home appliances for permanent data storage. 4. Industrial automation: Stores program code and configuration data for industrial control systems.
Detailed and Complete Alternative Models
Some alternative models to the AT27C2048-12PI include: - AT28C256-15PU - AM27C010-120DC - M27C4001-10F1
These models offer similar functionality and characteristics, providing alternatives for different project requirements.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de AT27C2048-12PI en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of AT27C2048-12PI in technical solutions:
Q: What is the AT27C2048-12PI? A: The AT27C2048-12PI is a 2-megabit (256K x 8) low-power, high-performance CMOS EPROM (erasable programmable read-only memory) integrated circuit.
Q: What are the key features of the AT27C2048-12PI? A: Some key features include a fast access time of 120 ns, low power consumption, wide operating voltage range, and compatibility with various programming equipment.
Q: How can I program the AT27C2048-12PI? A: The AT27C2048-12PI can be programmed using industry-standard EPROM programmers or dedicated programming equipment that supports this specific chip.
Q: Can the AT27C2048-12PI be reprogrammed? A: No, the AT27C2048-12PI is not a reprogrammable EPROM. Once programmed, the data remains permanently stored and cannot be changed.
Q: What is the operating voltage range for the AT27C2048-12PI? A: The AT27C2048-12PI operates within a voltage range of 4.5V to 5.5V.
Q: What is the typical power consumption of the AT27C2048-12PI? A: The AT27C2048-12PI has a low power consumption of typically 30 mA during active operation and less than 100 μA in standby mode.
Q: Is the AT27C2048-12PI compatible with standard TTL logic levels? A: Yes, the AT27C2048-12PI is compatible with standard TTL (Transistor-Transistor Logic) logic levels.
Q: Can I use the AT27C2048-12PI in automotive applications? A: Yes, the AT27C2048-12PI is suitable for automotive applications as it meets the necessary requirements for temperature range and reliability.
Q: What is the maximum operating temperature for the AT27C2048-12PI? A: The AT27C2048-12PI can operate within a temperature range of -40°C to +85°C.
Q: Are there any specific precautions to consider when handling the AT27C2048-12PI? A: Yes, it is important to handle the AT27C2048-12PI with proper ESD (Electrostatic Discharge) precautions to prevent damage to the integrated circuit.
Please note that these answers are general and may vary depending on the specific application and requirements.