PCF8563
NXP Semiconductors
Real-time clock/calendar
SDA
t
t
t
f
BUF
LOW
SCL
SDA
t
HD;STA
t
t
t
SU;DAT
r
HD;DAT
t
HIGH
t
SU;STA
t
SU;STO
mga728
Fig 28. I2C-bus timing waveforms
14. Application information
V
DD
SDA
SCL
MASTER
TRANSMITTER/
RECEIVER
1 F
100 nF
V
DD
SCL
SDA
CLOCK CALENDAR
OSCI
PCF8563
V
R
DD
OSCO
V
SS
R
R: pull-up resistor
t
r
R =
C
b
SDA SCL
mgm665
2
(I C-bus)
Fig 29. Application diagram
PCF8563
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© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 9 — 16 June 2011
32 of 45
NXP [ NXP ]
