pca8565-01 NXP Semiconductors, pca8565-01 Datasheet

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pca8565-01

Manufacturer Part Number
pca8565-01
Description
Pca8565 Real Time Clock/calender
Manufacturer
NXP Semiconductors
Datasheet
1. General description
2. Features
3. Applications
4. Quick reference data
Table 1:
Symbol
V
I
T
DD
amb
DD
Quick reference data
Parameter
supply voltage
supply current
ambient temperature
The PCA8565 is a CMOS real time clock/calendar optimized for low power
consumption. A programmable clock output, interrupt output and voltage-low detector
are also provided. All address and data are transferred serially via a two-line
bidirectional I
register is incremented automatically after each written or read data byte.
PCA8565
Real time clock/calender
Rev. 01 — 31 March 2003
Provides year, month, day, weekday, hours, minutes and seconds based on
32.768 kHz quartz crystal
Century flag
Clock operating voltage: 1.8 to 5.5 V
Extended operating temperature range: 40 to +125 C
Low backup current; typical 0.5 A at V
400 kHz two-wire I
Programmable clock output for peripheral devices (32.768 kHz, 1024 Hz,
32 Hz and 1 Hz)
Alarm and timer functions
Integrated oscillator capacitor
Internal power-on reset
I
Open-drain interrupt pin.
Automotive
Industrial
Other applications that require a wide operating temperature range.
2
C-bus slave address: read A3H and write A2H
Conditions
I
T
f
2
SCL
amb
C-bus active; f
2
= 400 kHz
C-bus. Maximum bus speed is 400 kbit/s. The built-in word address
= 40 to +125 C
2
C-bus interface (at V
SCL
= 400 kHz;
DD
DD
= 3.0 V and T
= 1.8 to 5.5 V)
Min
1.8
-
40
amb
Typ
-
-
-
= 25 C
Max
5.5
820
Product data
125
Unit
V
C
A

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pca8565-01 Summary of contents

Page 1

... Real time clock/calender Rev. 01 — 31 March 2003 1. General description The PCA8565 is a CMOS real time clock/calendar optimized for low power consumption. A programmable clock output, interrupt output and voltage-low detector are also provided. All address and data are transferred serially via a two-line bidirectional I register is incremented automatically after each written or read data byte ...

Page 2

... ADDRESS INTERFACE REGISTER PCA8565 V DD OSCI 1 8 OSCO 2 7 CLKOUT PCA8565TS INT 3 6 SCL SDA MCE170 Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender Version SOT505-1 CONTROL/STATUS 1 0 CONTROL/STATUS 2 1 SECONDS/VL 2 MINUTES 3 HOURS 4 DAYS 5 WEEKDAYS 6 MONTHS/CENTURY 7 YEARS 8 MINUTE ALARM ...

Page 3

... Functional description The PCA8565 contains sixteen 8-bit registers with an auto-incrementing address register, an on-chip 32.768 kHz oscillator with one integrated capacitor, a frequency divider which provides the source clock for the Real Time Clock/calender (RTC), a programmable clock output, a timer, an alarm, a voltage-low detector and a 400 kHz ...

Page 4

... CLKOUT is an open-drain output and enabled at power-on. If disabled it becomes high-impedance. 8.4 Reset The PCA8565 includes an internal reset circuit which is active whenever the oscillator is stopped. In the reset state the I the address pointer, are cleared with the exception of bits FE, VL, TD1, TD0, TESTC and AE which are set to logic 1. ...

Page 5

... BCD> <minute alarm coded in BCD> x <hour alarm coded in BCD> x <day alarm coded in BCD> Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender MGR887 t Bit 3 Bit 2 Bit 1 TESTC AIE x x FD1 ...

Page 6

... Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender (subject to the status of TIE); note that if © Koninklijke Philips Electronics N.V. 2003. All rights reserved ...

Page 7

... Days (address 05H) bits description Bit Symbol Value [ days [1] The PCA8565 compensates for leap years by adding a 29th day to February if the year counter contains a value which is exactly divisible by 4, including the year 00. Table 13: Weekdays (address 06H) bits description Bit Symbol Value [ ...

Page 8

... Description this register holds the current year coded in BCD format Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender Bit 4 Bit 3 Bit 2 Bit Table 16 Bit 4 Bit 3 Bit 2 ...

Page 9

... CLKOUT, see FD1 and FD0: CLKOUT frequency selection FD0 CLKOUT frequency 0 32.768 kHz 1 1024 Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender Table 23 © Koninklijke Philips Electronics N.V. 2003. All rights reserved ...

Page 10

... TIMER Source clock frequency 0 4096 Description countdown value = n; CountdownPeriod 6 divide chain called a pre-scaler. The pre-scaler can be Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender 2 C-bus clock (SCL) must -------------------------------------------------------------- - SourceClockFrequency © Koninklijke Philips Electronics N.V. 2003. All rights reserved ...

Page 11

... All timings are required minimums. 500 ns 2000 ns 2 C-bus C-bus is for bidirectional, two-line communication between different ICs or Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender C-bus pins, SDA and SCL, be toggled in a override active MGM664 Figure 6). © Koninklijke Philips Electronics N.V. 2003. All rights reserved. ...

Page 12

... Product data data line change stable; of data data valid allowed Figure 7. SLAVE SLAVE TRANSMITTER / RECEIVER RECEIVER Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender MBC621 SDA SCL P STOP condition MBC622 Figure 8). MASTER MASTER TRANSMITTER / TRANSMITTER RECEIVER MBA605 © Koninklijke Philips Electronics N.V. 2003. All rights reserved. ...

Page 13

... The addressing is always carried out with the first byte transmitted after the start procedure. The PCA8565 acts as a slave receiver or slave transmitter. Therefore the clock signal SCL is only an input signal, but the data signal SDA is a bidirectional line. The PCA8565 slave address is shown in Fig 10 ...

Page 14

... S SLAVE ADDRESS Fig 13. Master reads slave immediately after first byte (read mode). 9397 750 10695 Product data C-bus configuration for the different PCA8565 read and write cycles is shown in 11, Figure 12 and Figure 13. The word address is a 4-bit value that defines ...

Page 15

... SCL [1] interface inactive ( Hz); SCL CLKOUT disabled amb 125 C DD amb Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender Min Max Unit 0 +50 mA 0.5 +5 ...

Page 16

... Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender = pF; unless otherwise s L Min Typ Max - 1000 2000 - 900 1800 - 800 1600 - 700 1400 - 1000 6000 V 0 ...

Page 17

... C-bus access time between two STARTs or between a START and a STOP condition to this device must be less than one second. 9397 750 10695 Product data = 32.768 kHz; quartz R osc Conditions V = 200 mV amb [1] [4] Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender = pF; unless otherwise s L Min Typ Max ...

Page 18

... MLD970 Timer = 1 minute. amb Fig 16 Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender SU;DAT t HIGH t SU;STO MLD971 ( function CLKOUT = 32 kHz. DD © Koninklijke Philips Electronics N.V. 2003. All rights reserved. 6 ...

Page 19

... C; normalized to V amb Fig 18. Frequency deviation as a function SCL CLOCK CALENDAR OSCI PCA8565 SDA OSCO V SS SDA SCL 2 (I C-bus) Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender ( SDA MASTER TRANSMITTER/ ...

Page 20

... Method 3: OSCO output Direct measurement of OSCO out (accounting for test probe capacitance). 9397 750 10695 Product data Average deviations of 5 minutes per year can be easily Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender © Koninklijke Philips Electronics N.V. 2003. All rights reserved ...

Page 21

... 2.5 scale (1) ( 0.45 0.28 3.10 3.10 5.10 0.65 0.25 0.15 2.90 2.90 4.70 REFERENCES JEDEC EIAJ Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender detail ( 0.70 0.70 0.94 0.1 0.1 0.1 0.40 0.35 EUROPEAN ISSUE DATE PROJECTION 99-04-09 © Koninklijke Philips Electronics N.V. 2003. All rights reserved. ...

Page 22

... The footprint must incorporate solder thieves at the downstream end. 9397 750 10695 Product data Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender 2.5mm 3 so called 3 so © ...

Page 23

... Product data Suitability of surface mount IC packages for wave and reflow soldering methods [1] [4] , SO, SOJ Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender Soldering method Wave Reflow not suitable suitable [3] not suitable ...

Page 24

... Philips Semiconductors 16. Revision history Table 31: Revision history Rev Date CPCN Description 01 20030331 - Product data (9397 750 10695) 9397 750 10695 Product data Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender © Koninklijke Philips Electronics N.V. 2003. All rights reserved ...

Page 25

... Licenses Purchase of Philips I Rev. 01 — 31 March 2003 PCA8565 Real time clock/calender 2 C components 2 Purchase of Philips I C components conveys a license 2 under the Philips’ ...

Page 26

... Date of release: 31 March 2003 Document order number: 9397 750 10695 Real time clock/calender 15.5 Package related soldering information . . . . . . 23 16 Revision history . . . . . . . . . . . . . . . . . . . . . . . 24 17 Data sheet status Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 19 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 20 Licenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 PCA8565 ...

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