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Low Cost and Low Power I2C Real Time Clock/Calendar with Alarm Function and Dual IRQ Pins

Package Information

CAD Model: View CAD Model
Pkg. Type: MSOP
Pkg. Code: MQR
Lead Count (#): 8
Pkg. Dimensions (mm): 0.12 x 0.12 x 0.0
Pitch (mm): 0.03

Environmental & Export Classifications

Moisture Sensitivity Level (MSL) 1
Pb (Lead) Free Yes
ECCN (US) EAR99
HTS (US) 8542.39.0090
RoHS (ISL12057IUZ) Download

Product Attributes

Lead Count (#) 8
Carrier Type Tube
Moisture Sensitivity Level (MSL) 1
Pitch (mm) 0.7
Pkg. Dimensions (mm) 3.0 x 3.0 x 0.00
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range (°C) -40 to +85°C
Country of Assembly MALAYSIA
Country of Wafer Fabrication TAIWAN
Alarms (#) 2
Battery Backup No
Battery Seal No
Batttery Voltage Range (V) 0 - 0
CPU Supervisory Function POR Yes
CPU Supervisory Function Watchdog Timer No
Crystal Frequency Trimming No
Frequency Out IRQ1/FOUT
Frequency Out Pin Yes
IRQ Pin Yes
IRQ_bar IRQ1/FOUT, IRQ2
Interface I2C
Length (mm) 3
MOQ 2000
Memory Type RAM
Other Functions Dual Alarms, Dual IRQs
Pkg. Type MSOP
Price (USD) $1.47827
Reset No
Selectable Frequency Output 4
Supply Voltage Vcc (Min) (V) 1.4
Supply Voltage Vcc Range 1.4 to 3.6
Tamper Detect No
Time Keeping Current (µA) 0.5
Timer No
Width (mm) 3

Description

The ISL12057 device is a low-power, real-time clock that is pin compatible and functionally equivalent to Maxim DS1337 with clock/calendar and alarm function. The oscillator uses an external, low-cost 32. 768kHz crystal with 6pF load capacitance. The real-time clock tracks time with separate registers for hours, minutes, and seconds. The device has calendar registers for date, month, year, and day of the week. The calendar is accurate through 2099, with automatic leap year correction.