Overview
The CAT25640YI-GT3JN is a 64-Kb SPI Serial CMOS EEPROM device manufactured by ON Semiconductor. This device is internally organized as 8Kx8 bits, providing a robust and efficient storage solution for various applications. It features a 64-byte page write buffer and supports the Serial Peripheral Interface (SPI) protocol, making it compatible with a wide range of microcontrollers and other SPI-compatible devices.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage Range | 1.8 | 5.5 | V | |
| Clock Frequency | 20 | MHz | ||
| Input Low Voltage | -0.5 | 0.3 VCC | V | |
| Input High Voltage | 0.7 VCC | VCC + 0.5 | V | |
| Output Low Voltage (VCC ≥ 2.5 V, IOL = 3.0 mA) | 0.4 | V | ||
| Output High Voltage (VCC ≥ 2.5 V, IOH = -1.6 mA) | VCC - 0.8 | V | ||
| Operating Temperature Range | -40 | 85 | °C |
Key Features
- SPI Compatibility: Supports SPI modes (0,0) and (1,1) with a clock frequency up to 20 MHz.
- Page Write Buffer: Features a 64-byte page write buffer for efficient data writing.
- Write Protection: Includes hardware and software write protection, including partial and full array protection.
- Self-Timed Write Cycle: Ensures reliable write operations without the need for external timing.
- HOLD Functionality: Allows pausing of serial communication by taking the HOLD pin low while SCK is low.
- Power-On Reset (POR): Protects the internal logic against powering up in the wrong state and prevents 'brown-out' failure.
Applications
The CAT25640YI-GT3JN is suitable for a variety of applications requiring non-volatile memory, including:
- Industrial control systems
- Automotive systems
- Consumer electronics
- Medical devices
- Any system requiring reliable and efficient non-volatile data storage.
Q & A
- What is the memory size of the CAT25640YI-GT3JN?
The CAT25640YI-GT3JN has a memory size of 64 Kb, organized as 8Kx8 bits.
- What is the maximum clock frequency supported by the CAT25640YI-GT3JN?
The device supports a maximum clock frequency of 20 MHz.
- What are the supported SPI modes for the CAT25640YI-GT3JN?
The device supports SPI modes (0,0) and (1,1).
- How does the write protection work on the CAT25640YI-GT3JN?
The device includes both hardware and software write protection, allowing for partial and full array protection.
- What is the purpose of the HOLD pin on the CAT25640YI-GT3JN?
The HOLD pin allows pausing of serial communication by taking it low while SCK is low.
- What is the operating temperature range of the CAT25640YI-GT3JN?
The device operates within a temperature range of -40°C to +85°C.
- How does the Power-On Reset (POR) feature work?
The POR feature protects the internal logic against powering up in the wrong state and prevents 'brown-out' failure.
- What is the significance of the CS pin on the CAT25640YI-GT3JN?
The CS (Chip Select) pin is used to enable or disable the device. When CS is high, the device is in Standby Mode.
- How does the device handle invalid op-codes?
Invalid op-codes are ignored, and the serial output pin (SO) remains in the high impedance state.
- What is the purpose of the WREN and WRDI instructions?
The WREN instruction enables write operations, while the WRDI instruction disables write operations to protect the device against inadvertent writes.
