(China (Mainland))
Product Summary
The PCA887ACW is a CMOS integrated circuit for battery operation, typically supplied by button cells or flexible polymer batteries. Incorporated is a 32.768 kHz quartz crystal oscillator circuit including the two load capacitors. The circuit is optimized for a quartz with 6 pF load capacitance specification. Higher values can also be used with the addition of external load capacitors.
Parametrics
PCA887ACW absolute maximum ratings: (1)supply voltage: -0.5 +6.5 V; (2)supply current: -50 +50 mA; (3)input voltage: -0.5 +6.5 V; (4)input current: -10 +10 mA; (5)output voltage: -0.5 +6.5 V; (6)output current: -10 +10 mA; (7)total power dissipation: - 300 mW; (8)electrostatic discharge voltage: HBM: ±2500 V, MM: ±200 V; (9)Ilu latch-up current: 200 mA; (10)ambient temperature: -40 +85 ℃; (11)storage temperature: -65 +150 ℃.
Features
PCA887ACW features: (1)32.768 kHz quartz oscillator, amplitude regulated with excellent frequency stability and high immunity to leakage currents; (2)Very low current consumption: typically 130 nA; (3)Two wire serial interface (I2C-bus); (4)Integrated 24 bit counter with auto increment every 32 seconds; (5)Interrupt output for processor wake-up; (6)Stop function for accurate time setting and current saving during shelf life; (7)User test modes for accelerated application testing and development; (8)Two integrated quartz crystal oscillator capacitors.
Diagrams
