CAT28C64BH1312

Product Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile memory
• Characteristics: High-density, low-power, electrically erasable programmable read-only memory (EEPROM)
• Package: 28-pin plastic dual in-line package (PDIP)
• Essence: Stores and retrieves digital information even when power is turned off
• Packaging/Quantity: Available in tubes of 25 units

Specifications

• Memory Size: 64 kilobits (8 kilobytes)
• Organization: 8,192 words x 8 bits
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Time: 5 milliseconds (typical)
• Data Retention: 200 years (minimum)

Pin Configuration

The CAT28C64BH1312 has a total of 28 pins, each serving a specific function. The pin configuration is as follows:

1. A0: Address Input
2. A1: Address Input
3. A2: Address Input
4. A3: Address Input
5. A4: Address Input
6. A5: Address Input
7. A6: Address Input
8. A7: Address Input
9. VSS: Ground
10. /WE: Write Enable Input
11. /OE: Output Enable Input
12. NC: No Connection
13. DQ0: Data Input/Output
14. DQ1: Data Input/Output
15. DQ2: Data Input/Output
16. DQ3: Data Input/Output
17. DQ4: Data Input/Output
18. DQ5: Data Input/Output
19. DQ6: Data Input/Output
20. DQ7: Data Input/Output
21. VCC: Power Supply
22. /CE: Chip Enable Input
23. /PGM: Program Input
24. /VPP: Programming Voltage Input
25. NC: No Connection
26. NC: No Connection
27. NC: No Connection
28. NC: No Connection

Functional Features

• Non-volatile memory: Retains stored data even without power
• Electrically erasable and programmable: Allows for easy modification of stored information
• High-density storage: 64 kilobits of memory in a compact package
• Low-power consumption: Operates efficiently with a wide supply voltage range
• Fast write time: Enables quick data updates

Advantages and Disadvantages

Advantages

• Reliable data retention for extended periods
• Easy to program and erase
• Compact size for space-constrained applications
• Wide operating temperature range
• Low power consumption

Disadvantages

• Limited storage capacity compared to other memory technologies
• Relatively slower read and write speeds compared to volatile memory

Working Principles

The CAT28C64BH1312 is based on EEPROM technology, which utilizes floating-gate transistors to store and retrieve digital information. When data needs to be written, a high voltage is applied to the programming input (/PGM) while the chip enable (/CE) and write enable (/WE) inputs are activated. This allows electrons to be trapped in the floating gate, altering the transistor's threshold voltage and storing the desired data.

During read operations, the chip enable (/CE) and output enable (/OE) inputs are activated, allowing the stored data to be accessed via the data input/output pins (DQ0-DQ7). The non-volatile nature of EEPROM ensures that the stored information remains intact even when power is turned off.

Detailed Application Field Plans

The CAT28C64BH1312 finds applications in various fields, including:

1. Embedded Systems: Used for storing firmware, configuration data, and calibration parameters in microcontrollers and other embedded devices.
2. Automotive Electronics: Employed in automotive control units for storing critical data such as engine management parameters, fault codes, and vehicle identification information.
3. Industrial Automation: Utilized in programmable logic controllers (PLCs) and industrial control systems to store program code, configuration settings, and historical data.
4. Consumer Electronics: Integrated into smart appliances, set-top boxes, and audio/video equipment for storing user preferences, firmware updates, and encryption keys.
5. Communication Systems: Used in networking devices, routers, and modems to store configuration data, firmware, and log files.

Detailed and Complete Alternative Models

• CAT28C64BH13I-12TE13: Same specifications and features as CAT28C64BH1312 but offered in a 28-pin thin shrink small outline package (TSOP)
• AT28C64B-15