PCF8583P NXP Semiconductors, PCF8583P Datasheet - Page 14

• Manufacturer Part Number: PCF8583P
• Manufacturer: NXP Semiconductors

Specifications of PCF8583P

• Bus Type: Serial (2-Wire, I2C)
• Operating Supply Voltage (typ): 3.3/5V
• Package Type: PDIP
• Operating Supply Voltage (max): 6V
• Operating Supply Voltage (min): 2.5V
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 8
• Mounting: Through Hole
• Date Format: DW:DM:M:Y
• Time Format: HH:MM:SS:hh
• Lead Free Status / RoHS Status: Compliant

NXP Semiconductors
PCF8583
Product data sheet
7.11 Initialization
In the 50 Hz clock mode or event-counter mode the oscillator is disabled and the oscillator
input is switched to a high-impedance state. This allows the user to feed the 50 Hz
reference frequency or an external high speed event signal into the input OSCI.
When power-on occurs the I
counters are reset. The device starts time-keeping in the 32.768 kHz clock mode with the
24 hour format on the first of January at 0.00.00:00. A 1 Hz square wave with 50 % duty
cycle appears at the interrupt output pin (starts HIGH).
The stop counting flag of the control and status register must be set before loading the
actual time into the counters. Loading of illegal states leads to a temporary clock
malfunction.
All information provided in this document is subject to legal disclaimers.
Rev. 06 — 6 October 2010
2
C-bus interface, the control and status register and all clock
Clock and calendar with 240 x 8-bit RAM
PCF8583
© NXP B.V. 2010. All rights reserved.
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