DS4510U-15+

The DS4510 is a CPU supervisor with integrated 64-byte EEPROM memory and four programmable, nonvolatile (NV) I/O pins. It is configured with an industry-standard I2C interface using either fast-mode (400kbps) or standard-mode (100kbps) communication. The I/O pins can be used as general-purpose I2C to-parallel I/O expander with unlimited read/write capability. EEPROM registers allow the power-on value of the I/O pins to be adjusted to keep track of the system’s state through power cycles, and the CPU supervisor’s timer can be adjusted between 125ms and 1000ms to meet most any application need. The DS4510 contains a CPU supervisor, four programmable I/O pins, and a 64-byte EEPROM memory. All functions are configurable or controllable through an industry-standard I2C-compatible bus. DS4510 NV registers that are likely to require frequent modification are implemented using SRAM-shadowed EEPROM (SEEPROM) memory. This memory is configurable to act as volatile SRAM or NV EEPROM by adjusting the SEE bit in the Config register. Configuring the SEEPROM as SRAM eliminates the EEPROM write time and allows infinite write cycles to these registers. Configuring the registers as EEPROM allows the application to change the power-on values that are recalled during power-up.

Applications

• RAM-Based FPGA Bank Switching for Multiple Profiles
• Industrial Controls
• Cellular Telephones
• PC Peripherals
• PDAs

Key features

• Accurate 5%, 10%, or 15% 5V Power-Supply Monitoring
• Programmable Reset Timer Maintains Reset After VCC Returns to an In-Tolerance Condition
• Four Programmable, NV, Digital I/O Pins with Selectable Internal Pullup Resistor
• 4 Bytes of User EEPROM
• Reduces Need for Discrete Components
• I2C-Compatible Serial Interface
• 10-Pin μSOP Package