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X1288V14IZ-2.7A 데이터시트(PDF) 8 Page - Intersil Corporation |
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X1288V14IZ-2.7A 데이터시트(HTML) 8 Page - Intersil Corporation |
8 / 27 page 8 FN8102.3 April 14, 2006 VTRIP Programming Timing Diagram VTRIP Programming Parameters DESCRIPTION The X1288 device is a Real Time Clock with clock/calendar, two polled alarms with integrated 32kx8 EEPROM, oscillator compensation, CPU Supervisor (POR/LVS and WDT) and battery backup switch. The oscillator uses an external, low-cost 32.768kHz crystal. All compensation and trim components are integrated on the chip. This eliminates several external discrete components and a trim capacitor, saving board area and component cost. The Real-Time Clock keeps track of time with separate registers for Hours, Minutes, Seconds and 1/100 of a second. The Calendar has separate registers for Date, Month, Year and Day-of-week. The calendar is correct through 2099, with automatic leap year correction. The powerful Dual Alarms can be set to any Clock/Calendar value for a match. For instance, every minute, every Tuesday, or 5:23 AM on March 21. The alarms can be polled in the Status Register or provide a hardware interrupt (IRQ Pin). There is a repeat mode for the alarms allowing a periodic interrupt. The PHZ/IRQ pin may be software selected to provide a frequency output of 1 Hz, 100 Hz, or 32,768 Hz. The X1288 device integrates CPU Supervisor func-tions and a Battery Switch. There is a Power-On Reset (RESET output) with typically 250 ms delay from power- on. It will also assert RESET when Vcc goes below the specified threshold. The Vtrip threshold is user repro- grammable. There is a WatchDog Timer (WDT) with 3 selectable time-out periods (0.25s, 0.75s, 1.75s) and a disabled setting. The watchdog activates the RESET pin when it expires. Parameter Description Min. Max. Units tVPS VTRIP Program Enable Voltage Setup time 1 µs tVPH VTRIP Program Enable Voltage Hold time 1 µs tTSU VTRIP Setup time 1 µs tTHD VTRIP Hold (stable) time 10 ms tVPO VTRIP Program Enable Voltage Off time (Between successive adjustments) 0µs tRP VTRIP Program Recovery Period (Between successive adjustments) 10 ms VP Programming Voltage 14 16 V VTRAN VTRIP Programmed Voltage Range 1.7 5.0 V Vtv VTRIP Program variation after programming (Programmed at 25°C) -25 +25 mV VTRIP programming parameters are not 100% Tested. 01 2 3 4 5 6 7 0 1 2 345 67 0 1 2 3 45 6 7 0 1 2 3 4 5 67 VCC (VTRIP) tVPH tVPS tVPO tRP SCL SDA AEh 03h/01h RESET VP = 15V 00h 00h VCC VCC tTSU tTHD VTRIP X1288 |
유사한 부품 번호 - X1288V14IZ-2.7A |
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유사한 설명 - X1288V14IZ-2.7A |
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