PCF8563T/5,518

Part: PCF8563

Type: Real-Time Clock/Calendar

Description: A CMOS Real-Time Clock (RTC) and calendar optimized for low power consumption, providing year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal, with a 400 kHz I2C-bus interface and clock operating voltage from 1.0 V to 5.5 V.

Operating Conditions:

• Supply voltage: 1.0 V to 5.5 V at room temperature
• I2C-bus speed: 400 kbit/s
• Oscillator frequency: 32.768 kHz

Key Specs:

• Low backup current: typical 0.25 μA at VDD = 3.0 V and Tamb = 25 °C
• I2C-bus interface speed: 400 kHz (at VDD = 1.8 V to 5.5 V)
• Programmable clock output frequencies: 32.768 kHz, 1.024 kHz, 32 Hz, 1 Hz
• I2C-bus target address: read A3h, write A2h
• Timekeeping elements: Year, Month, Day, Weekday, Hours, Minutes, Seconds
• Data format: Binary Coded Decimal (BCD) for time and date registers

Features:

• Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
• Century flag
• Clock operating voltage: 1.0 V to 5.5 V at room temperature
• Low backup current; typical 0.25 μA at VDD = 3.0 V and Tamb = 25 °C
• 400 kHz two-wire I2C-bus interface (at VDD = 1.8 V to 5.5 V)
• Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz)
• Alarm and timer functions
• Integrated oscillator capacitor
• Internal Power-On Reset (POR)
• I2C-bus target address: read A3h and write A2h
• Open-drain interrupt pin

Applications:

• Mobile telephones
• Portable instruments
• Electronic metering
• Battery-powered products

Package:

• HVSON10 (10 terminals; body 3 × 3 × 0.85 mm)
• SO8 (8 leads; body width 3.9 mm)
• TSSOP8 (8 leads; body width 3 mm)

• Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
• Century flag
• Clock operating voltage: 1.0 V to 5.5 V at room temperature
• Low backup current; typical 0.25 μA at VDD = 3.0 V and Tamb = 25 °C
• 400 kHz two-wire I 2 C-bus interface (at VDD = 1.8 V to 5.5 V)
• Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz)
• Alarm and timer functions
• Integrated oscillator capacitor
• Internal Power-On Reset (POR)
• I 2 C-bus target address: read A3h and write A2h
• Open-drain interrupt pin

Real-Time Clock/Calendar

• Mobile telephones
• Portable instruments
• Electronic metering
• Battery-powered products

Real-Time Clock/Calendar

Table 3 provides detailed description of various pins on PCF8563.

Figure 28 shows the detailed application diagram for PCF8563.

Real-Time Clock/Calendar

Figure 30. Package outline SOT96-1 (SO8) of PCF8563T

Figure 31. Package outline SOT505-1 (TSSOP8) of PCF8563TS