DS4510 Rev 2 8/04 CPU Supervisor with Nonvolatile Memory and Programmable I/O General Description Features The DS4510 is a CPU supervisor with integrated 64- Accurate 5%, 10%, or 15% 5V Power-Supply byte EEPROM memory and four programmable, non- Monitoring volatile (NV) I/O pins. It is configured with an 2 Programmable Reset Timer Maintains Reset After industry-standard I C interface using either fast-mode (400kbps) or standard-mode (100kbps) communica- V Returns to an In-Tolerance Condition CC 2 tion. The I/O pins can be used as general-purpose I C- Four Programmable, NV, Digital I/O Pins with to-parallel I/O expander with unlimited read/write Selectable Internal Pullup Resistor capability. EEPROM registers allow the power-on value of the I/O pins to be adjusted to keep track of the sys- 64 Bytes of User EEPROM tems state through power cycles, and the CPU supervi- Reduces Need for Discrete Components sors timer can be adjusted between 125ms and 1000ms to meet most any application need. 2 I C-Compatible Serial Interface 10-Pin SOP Package Applications Ordering Information RAM-Based FPGA Bank Switching for V TRIP PIN- CC PART TEMP RANGE Multiple Profiles POINT PACKAGE Industrial Controls DS4510U-5 5% -40C to +85C 10 SOP DS4510U-10 10% -40C to +85C 10 SOP Cellular Telephones DS4510U-15 15% -40C to +85C 10 SOP PC Peripherals DS4510U-5/T&R 5% -40C to +85C 10 SOP PDAs DS4510U-10/T&R 10% -40C to +85C 10 SOP DS4510U-15/T&R 15% -40C to +85C 10 SOP Pin Configuration Typical Operating Circuit 2.7V TO 5.5V TOP VIEW 4.7k A 1 10 0 RST V V CC CC 4.7k 4.7k RST RESET SDA 2 9 I/O 0 A0 I/O CONFIG0 0 SCL 3 8 I/O 1 FROM DS4510 SDA I/O CONFIG1 FPGA 1 SYSTEM V 4 7 I/O CC 2 DS4510 CONTROLLER SCL I/O CONFIG2 2 GND 5 6 I/O 3 CONFIG3 I/O 3 GND GND SOP Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.CPU Supervisor with Nonvolatile Memory and Programmable I/O ABSOLUTE MAXIMUM RATINGS Voltage Range on V , SDA, and SCL EEPROM Programming Temperature.....................0C to +70C CC Pins Relative to Ground.....................................-0.5V to +6.0V Storage Temperature Range .............................-55C to +125C Voltage Range on A , I/O , I/O , I/O , I/O Relative Soldering Temperature .......................................See IPC/JEDEC 0 0 1 2 3 to Ground ..............-0.5V to V + 0.5V, not to exceed +6.0V. J-STD-020A Specification CC Operating Temperature Range ...........................-40C to +85C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED DC OPERATING CONDITIONS (T = -40C to +85C) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V (Notes 1) 2.7 5.5 V CC Input Logic 1 V (Note 2) 0.7 x V V + 0.3 V IH CC CC Input Logic 0 V -0.3 +0.3 x V V IL CC DC ELECTRICAL CHARACTERISTICS (V = 2.7V to 5.5V, T = -40C to +85C.) CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DS4510U-5 4.5 4.625 4.75 V Trip Point V DS4510U-10 4.25 4.375 4.49 V CC CCTP DS4510U-15 4.0 4.125 4.24 Standby Current I V = 5.0V (Note 3) 50 75 A STBY CC Input Leakage I -1.0 +1.0 A L 3mA sink current 0.4 SDA Low-Level Output Voltage V V OL 6mA sink current 0.6 I/O Low-Level Output Voltage V 4mA sink current 0.4 V X OLIOX RST Pin Low-Level Output V 10mA sink current (Note 4) 0.4 V OLRST I/O Pullup Resistors R 4.0 5.0 6.5 k X P I/O Capacitance C (Note 5) 10 pF I/O 2 DS4510