四位电子表机芯IC SG1304

FUNCTIONS
 5 Functions: Month, Date, Hour, Minute, Second.
 30-second alarm sound.
 Chime on every hour.
 User selectable 12-hour/24-hour format.
 4 year calendar
 One-touch correction of time error within ±30 seconds
FEATURES
 Single-chip CMOS construction
 Drives 6-digit duplexed LCD with PM/AM-Time, alarm mark and chime mark
 Colon display
 Direct drive of piezoelectric transducer
 Low power dissipation
 32,768Hz crystal frequency
 On-chip oscillator, capacitor and resistors
 On-chip voltage doubler
 Single 1.5V battery operation