PCA1485 NXP Semiconductors Datasheet

PCA1485 Key Features

• 32 kHz oscillator, amplitude regulated with excellent frequency stability
• High immunity of the oscillator to leakage currents
• Time calibration electrically programmable and reprogrammable (via EEPROM)
• A quartz crystal is the only external ponent required
• Very low current consumption; typically 170 nA
• Output for bipolar stepping motors of different types
• DESCRIPTION chip with bumps on tape chip with bumps on tape chip on foil chip on foil GENERAL DESCRIPTION
• No loss of motor steps possible because of on-chip detection of the induced motor voltage
• Indication for battery end-of-life
• Stop function for accurate timing