Overview
The CAT25128VI-GD is a 128-Kb Serial CMOS EEPROM device produced by onsemi. This device is internally organized as 16Kx8 bits and features a 64-byte page write buffer. It supports the Serial Peripheral Interface (SPI) protocol and is enabled through a Chip Select (CS) input. The device includes necessary bus signals such as clock input (SCK), data input (SI), and data output (SO) lines, along with a HOLD input to pause any serial communication. The CAT25128VI-GD is designed for high reliability applications with on-chip ECC (Error Correction Code) and offers both hardware and software write protection.
Key Specifications
| Parameter | Min | Max | Units |
|---|---|---|---|
| Supply Voltage Range | 1.8 V | 5.5 V | V |
| Clock Frequency | 5 MHz | 20 MHz | MHz |
| Data Setup Time | 20 ns | 5 ns | ns |
| Data Hold Time | 20 ns | 5 ns | ns |
| SCK High Time | 75 ns | 20 ns | ns |
| SCK Low Time | 75 ns | 20 ns | ns |
| Supply Current (Read Mode) | 0.8 mA | - | mA |
| Program/Erase Cycles | - | 1,000,000 | Cycles |
| Data Retention | - | 100 years | Years |
Key Features
- 20 MHz SPI Compatible
- SPI Modes (0,0) & (1,1)
- 64-byte Page Write Buffer
- Additional Identification Page with Permanent Write Protection
- Self-timed Write Cycle
- Hardware and Software Protection
- Block Write Protection - Protect 1/4, 1/2 or Entire EEPROM Array
- Low Power CMOS Technology
- On-Chip ECC (Error Correction Code)
Applications
The CAT25128VI-GD is suitable for a variety of applications requiring non-volatile memory, including industrial control systems, automotive electronics, medical devices, and consumer electronics. Its high reliability features, such as on-chip ECC and long data retention, make it particularly useful in environments where data integrity is critical.
Q & A
- What is the memory organization of the CAT25128VI-GD? The device is internally organized as 16Kx8 bits.
- What is the maximum clock frequency supported by the CAT25128VI-GD? The device supports up to 20 MHz clock frequency.
- What are the supply voltage range and temperature range for the CAT25128VI-GD? The supply voltage range is 1.8 V to 5.5 V, and the temperature range is -40°C to +125°C.
- How many program/erase cycles does the CAT25128VI-GD support? The device supports up to 1,000,000 program/erase cycles.
- What is the data retention period of the CAT25128VI-GD? The data retention period is 100 years.
- Does the CAT25128VI-GD have any write protection features? Yes, it features both hardware and software write protection, including block write protection and an additional identification page with permanent write protection.
- How does the HOLD input function on the CAT25128VI-GD? The HOLD input can be used to pause communication between the host and the CAT25128 device by taking the HOLD pin low while SCK is low.
- What is the purpose of the on-chip ECC in the CAT25128VI-GD? The on-chip ECC (Error Correction Code) enhances the device's reliability by correcting errors that may occur during data storage and retrieval.
- Can the CAT25128VI-GD be used in high-temperature environments? Yes, the device operates over a temperature range of -40°C to +125°C.
- How is the device powered up and reset? The device incorporates Power-On Reset (POR) circuitry, ensuring it powers up in a write disable state and standby mode, and resets when VCC drops below the POR trigger level.
