M27C256B-90C1

Product Overview

Category

The M27C256B-90C1 belongs to the category of non-volatile memory devices.

Use

It is primarily used for storing and retrieving digital information in electronic systems.

Characteristics

• Non-volatile: Retains data even when power is turned off.
• High storage capacity: 256 kilobits (32 kilobytes) of memory.
• Fast access time: Operates at a speed of 90 nanoseconds.
• Low power consumption: Efficient energy usage.
• Durable: Can withstand harsh environmental conditions.

Package

The M27C256B-90C1 is available in a standard dual in-line package (DIP).

Essence

This memory device is essential for storing critical data in various electronic applications.

Packaging/Quantity

The M27C256B-90C1 is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Access Time: 90 nanoseconds
• Supply Voltage: 5 volts
• Operating Temperature Range: -40°C to +85°C
• Package Type: Dual In-Line Package (DIP)

Pin Configuration

The M27C256B-90C1 has a total of 28 pins. The pin configuration is as follows:

```

Pin Name Description

1 A14 Address Input 2 A12 Address Input 3 A7 Address Input 4 A6 Address Input 5 A5 Address Input 6 A4 Address Input 7 A3 Address Input 8 A2 Address Input 9 A1 Address Input 10 A0 Address Input 11 VPP Programming Voltage 12 A8 Address Input 13 A9 Address Input 14 A11 Address Input 15 A10 Address Input 16 CE Chip Enable 17 OE Output Enable 18 WE Write Enable 19 I/O0 Data Input/Output 20 I/O1 Data Input/Output 21 I/O2 Data Input/Output 22 I/O3 Data Input/Output 23 I/O4 Data Input/Output 24 I/O5 Data Input/Output 25 I/O6 Data Input/Output 26 I/O7 Data Input/Output 27 GND Ground 28 VCC Power Supply ```

Functional Features

• High-speed operation: The M27C256B-90C1 offers fast access times, enabling efficient data retrieval.
• Easy integration: It can be easily integrated into various electronic systems due to its standard pin configuration.
• Non-volatile storage: The memory retains data even when power is disconnected, ensuring data integrity.
• Low power consumption: The device operates with low power requirements, making it energy-efficient.

Advantages and Disadvantages

Advantages

• Large storage capacity for a wide range of applications.
• Fast access time allows for quick data retrieval.
• Durable construction ensures reliability in harsh environments.
• Low power consumption reduces energy usage.

Disadvantages

• Limited write endurance compared to other memory technologies.
• Requires external programming voltage (VPP) for certain operations.

Working Principles

The M27C256B-90C1 utilizes a technology called electrically erasable programmable read-only memory (EEPROM). It stores data by trapping electrical charges within floating gate transistors. These charges represent binary information, which can be read or modified through specific control signals.

During a read operation, the memory controller activates the chip enable (CE) and output enable (OE) pins while providing the desired address. The data stored at that address is then made available on the data input/output (I/O) pins.

To write data, the chip enable (CE), output enable (OE), and write enable (WE) pins are activated along with the desired address and data inputs. The data is then programmed into the memory cells.

Detailed Application Field Plans

The M27C256B-90C1 finds applications in various electronic systems, including but not limited to: - Microcontrollers - Embedded systems - Automotive electronics - Industrial control systems - Communication devices

Its high storage capacity, fast access time, and non-volatile nature make it suitable for storing program code, configuration data, and other critical information in these applications.

Detailed and Complete Alternative Models

Some alternative models to the M27C256B-90C1 include: - M27C256B-12F1: Similar specifications but with a slower access time of 120 nanoseconds. -