ISL12020MIRZ-T7A Intersil, ISL12020MIRZ-T7A Datasheet - Page 3

• Manufacturer Part Number: ISL12020MIRZ-T7A
• Description: IC RTC/CALENDAR TEMP SNSR 20DFN
• Manufacturer: Intersil
• Type: Clock/Calendarr

Specifications of ISL12020MIRZ-T7A

• Memory Size: 128B
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table of Contents
Block Diagram .................................................. 2
Pin Descriptions ............................................... 4
Absolute Maximum Ratings .............................. 5
Electrical Specifications .....................................6
SDA vs SCL Timing............................................ 8
Symbol Table .................................................... 8
Typical Performance Curves ............................. 8
General Description ........................................ 10
Functional Description.................................... 10
Real Time Clock Operation.............................. 11
Register Descriptions ..................................... 12
Real Time Clock Registers .............................. 14
Control and Status Registers (CSR) ................ 14
Power Control Operation ................................. 10
Normal Mode (V
Battery-Backup Mode (V
Power Failure Detection .................................. 11
Brownout Detection ........................................ 11
Battery Level Monitor...................................... 11
Single Event and Interrupt .............................. 11
Frequency Output Mode .................................. 12
General Purpose User SRAM ............................ 12
I
Oscillator Compensation.................................. 12
Addresses [00h to 06h]................................... 14
Addresses [07h to 0Fh]................................... 14
Status Register (SR)....................................... 14
2
Mode (V
Mode (V
C Serial Interface ........................................ 12
BAT
DD
) ................................................. 10
) ................................................ 10
DD
) to Battery-Backup
3
BAT
) to Normal
ISL12020M
User Registers (Accessed by Using Slave
I
Device Addressing.......................................... 26
Write Operation ............................................. 27
Read Operation .............................................. 27
Application Section ........................................ 27
Revision History ............................................. 30
Products......................................................... 31
2
C Serial Interface ........................................ 25
Interrupt Control Register (INT) ...................... 16
Initial AT and DT setting Register (ITRO) .......... 17
ALPHA Register (ALPHA)................................. 19
BETA Register (BETA) .................................... 19
Final Analog Trimming Register (FATR)............. 20
Final Digital Trimming Register (FDTR) ............. 21
ALARM Registers (10h to 15h)......................... 21
Time Stamp VDD to Battery Registers
Time Stamp Battery to VDD Registers
DST Control Registers (DSTCR) ....................... 22
TEMP Registers (TEMP)................................... 24
NPPM Registers (NPPM) .................................. 24
XT0 Registers (XT0)....................................... 24
ALPHA Hot Register (ALPHAH) ......................... 25
Addresses [00h to 7Fh] ................................. 25
Protocol Conventions ..................................... 25
Battery-Backup Details................................... 27
Layout Considerations .................................... 28
Measuring Oscillator Accuracy ......................... 28
Temperature Compensation Operation.............. 29
Daylight Savings Time (DST) Example.............. 29
(TSV2B) ..................................................... 22
(TSB2V) ..................................................... 22
Address 1010111x) .................................. 25
February 11, 2010
FN6667.4