PCF2123TS/1,118 NXP Semiconductors, PCF2123TS/1,118 Datasheet - Page 63

IC SPI RTC/CALENDAR 14TSSOP

PCF2123TS/1,118

Manufacturer Part Number
PCF2123TS/1,118
Description
IC SPI RTC/CALENDAR 14TSSOP
Manufacturer
NXP Semiconductors
Type
Clock/Calendar/Alarmr
Datasheets

Specifications of PCF2123TS/1,118

Package / Case
14-TSSOP
Time Format
HH:MM:SS (12/24 hr)
Date Format
YY-MM-DD-dd
Interface
SPI, 3-Wire Serial
Voltage - Supply
1.1 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Function
Clock/Calendar
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.1 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Rtc Bus Interface
Serial (3-Wire, SPI)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Memory Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-4534-2
935286384118
PCF2123TS/1-T

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PCF2123TS/1,118
Manufacturer:
VISHAY
Quantity:
15 160
Part Number:
PCF2123TS/1,118
Manufacturer:
NXP/恩智浦
Quantity:
20 000
NXP Semiconductors
26. Contents
1
2
3
4
5
6
7
7.1
7.2
8
8.1
8.1.1
8.1.2
8.2
8.3
8.3.1
8.3.1.1
8.3.2
8.4
8.4.1
8.4.1.1
8.4.2
8.4.3
8.4.4
8.4.5
8.4.6
8.4.7
8.4.8
8.5
8.5.1
8.5.2
8.5.3
8.5.4
8.5.5
8.6
8.6.1
8.6.2
8.6.3
8.6.4
8.6.5
8.7
8.7.1
8.7.2
8.7.3
8.7.3.1
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features and benefits . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
Functional description . . . . . . . . . . . . . . . . . . . 6
Power consumption with respect to
quartz series resistance . . . . . . . . . . . . . . . . . . 6
Power consumptions with respect to
timer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Register Seconds . . . . . . . . . . . . . . . . . . . . . . 12
Setting and reading the time. . . . . . . . . . . . . . 15
Register Countdown_timer . . . . . . . . . . . . . . . 20
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5
Low power operation . . . . . . . . . . . . . . . . . . . . 6
Register overview . . . . . . . . . . . . . . . . . . . . . . . 8
Control registers . . . . . . . . . . . . . . . . . . . . . . . . 9
Register Control_1 . . . . . . . . . . . . . . . . . . . . . . 9
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Register Control_2 . . . . . . . . . . . . . . . . . . . . . 11
Time and date function . . . . . . . . . . . . . . . . . . 12
OS flag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Register Minutes. . . . . . . . . . . . . . . . . . . . . . . 13
Register Hours . . . . . . . . . . . . . . . . . . . . . . . . 13
Register Days . . . . . . . . . . . . . . . . . . . . . . . . . 14
Register Weekdays. . . . . . . . . . . . . . . . . . . . . 14
Register Months . . . . . . . . . . . . . . . . . . . . . . . 14
Register Years . . . . . . . . . . . . . . . . . . . . . . . . 15
Alarm function. . . . . . . . . . . . . . . . . . . . . . . . . 17
Register Minute_alarm . . . . . . . . . . . . . . . . . . 17
Register Hour_alarm . . . . . . . . . . . . . . . . . . . 17
Register Day_alarm . . . . . . . . . . . . . . . . . . . . 17
Register Weekday_alarm . . . . . . . . . . . . . . . . 18
Alarm flag . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Timer functions . . . . . . . . . . . . . . . . . . . . . . . . 20
Register Timer_clkout. . . . . . . . . . . . . . . . . . . 20
Minute and second interrupt . . . . . . . . . . . . . . 20
Countdown timer function . . . . . . . . . . . . . . . . 22
Timer flags . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Interrupt output . . . . . . . . . . . . . . . . . . . . . . . . 25
Minute and second interrupts . . . . . . . . . . . . . 26
Countdown timer interrupts. . . . . . . . . . . . . . . 26
Alarm interrupts . . . . . . . . . . . . . . . . . . . . . . . 27
Correction pulse interrupts . . . . . . . . . . . . . . . 27
8.8
8.8.1
8.9
8.10
8.11
9
9.1
10
11
12
13
14
15
16
17
18
19
19.1
19.2
19.3
19.4
20
21
22
23
24
24.1
24.2
24.3
24.4
25
26
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP B.V. 2011.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
3-line serial interface . . . . . . . . . . . . . . . . . . . 35
Internal circuitry . . . . . . . . . . . . . . . . . . . . . . . 38
Limiting values . . . . . . . . . . . . . . . . . . . . . . . . 39
Static characteristics . . . . . . . . . . . . . . . . . . . 40
Dynamic characteristics. . . . . . . . . . . . . . . . . 42
Application information . . . . . . . . . . . . . . . . . 44
Package outline. . . . . . . . . . . . . . . . . . . . . . . . 45
Bare die outline . . . . . . . . . . . . . . . . . . . . . . . . 48
Handling information . . . . . . . . . . . . . . . . . . . 52
Packing information . . . . . . . . . . . . . . . . . . . . 52
Soldering of SMD packages . . . . . . . . . . . . . . 54
Footprint information for reflow soldering . . 57
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 59
References. . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Revision history . . . . . . . . . . . . . . . . . . . . . . . 60
Legal information . . . . . . . . . . . . . . . . . . . . . . 61
Contact information . . . . . . . . . . . . . . . . . . . . 62
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Clock output . . . . . . . . . . . . . . . . . . . . . . . . . . 28
CLKOE pin . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Offset register . . . . . . . . . . . . . . . . . . . . . . . . 29
External clock test mode . . . . . . . . . . . . . . . . 32
STOP bit function . . . . . . . . . . . . . . . . . . . . . . 33
Interface watchdog timer . . . . . . . . . . . . . . . . 37
Introduction to soldering. . . . . . . . . . . . . . . . . 54
Wave and reflow soldering. . . . . . . . . . . . . . . 54
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . 54
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . 55
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 61
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 62
SPI Real time clock/calendar
Document identifier: PCF2123
PCF2123
Date of release: 27 April 2011
All rights reserved.

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