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X5168PI Datasheet(PDF) 1 Page - Renesas Technology Corp |
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X5168PI Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 20 page  FN8130 Rev 2.00 Page 1 of 20 June 15, 2006 FN8130 Rev 2.00 June 15, 2006 X5168, X5169 (Replaces X25268, X25169) CPU Supervisor with 16Kbit SPI EEPROM DATASHEET These devices combine three popular functions, Power-on Reset Control, Supply Voltage Supervision, and Block Lock Protect Serial EEPROM Memory in one package. This combination lowers system cost, reduces board space requirements, and increases reliability. Applying power to the device activates the power-on reset circuit which holds RESET/RESET active for a period of time. This allows the power supply and oscillator to stabilize before the processor can execute code. The device’s low VCC detection circuitry protects the user’s system from low voltage conditions by holding RESET/RESET active when VCC falls below a minimum VCC trip point. RESET/RESET remains asserted until VCC returns to proper operating level and stabilizes. Five industry standard VTRIP thresholds are available, however, Intersil’s unique circuits allow the threshold to be reprogrammed to meet custom requirements or to fine-tune the threshold in applications requiring higher precision. Features •Low VCC Detection and Reset Assertion - Five standard reset threshold voltages - Re-program low VCC reset threshold voltage using special programming sequence - Reset signal valid to VCC = 1V • Long Battery Life with Low Power Consumption - <50µA max standby current, watchdog on - <1µA max standby current, watchdog off - <400µA max active current during read • 16Kbits of EEPROM • Built-in Inadvertent Write Protection - Power-up/power-down protection circuitry - Protect 0, 1/4, 1/2 or all of EEPROM array with Block Lock™ protection - In circuit programmable ROM mode • 2MHz SPI Interface Modes (0,0 & 1,1) • Minimize EEPROM Programming Time - 32-byte page write mode - Self-timed write cycle - 5ms write cycle time (typical) • 2.7V to 5.5V and 4.5V to 5.5V Power Supply Operation • Available Packages - 14 Ld TSSOP, 8 Ld SOIC, 8 Ld PDIP • Pb-Free Plus Anneal Available (RoHS Compliant) Block Diagram Data Register Command Decode & Control Logic SI SO SCK CS VCC Reset Timebase Power-on and Generation VTRIP + - RESET/RESET Reset Low Voltage Status Register Protect Logic 4Kbits 4Kbits 8Kbits WP X5168 = RESET X5169 = RESET NOT RECOMMEN DED FOR NEW D ESIGNS NO RECOMMEND ED REPLACEMEN T contact our Techn ical Support Cente r at 1-888-INTERSIL o r www.intersil.com /tsc |
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