Product Summary

The PT7C4337 serial real-time clock is a low-power clock/calendar with two programmable time-of-day alarms and a programmable square-wave output. Address and data are transferred serially via a 2-wire, bidirectional bus. The PT7C4337 provides seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The PT7C4337 operates in either the 24-hour or 12-hour format with AM/PM indicator.

Parametrics

PT7C4337 absolute maximum ratings: (1)Storage Temperature: -65℃ to +150℃; (2)Ambient Temperature with Power Applied: -40℃ to +85℃; (3)Supply Voltage to Ground Potential (Vcc to GND): -0.3V to +6.5V; (4)DC Input (All Other Inputs except Vcc & GND): -0.3V to (Vcc+0.3V); (5)DC Output Voltage (SDA, /INTA, /INTB pins): -0.3V to +6.5V; (6)DC Output Current (FOUT): -0.3V to (Vcc+0.3V); (7)Power Dissipation: 320mW (depend on package).

Features

PT7C4337 features: (1)Using external 32.768kHz quartz crystal; (2)Supports I2C-Bus high speed mode (400 kHz); (3)Includes time (Hour/ Minute/ Second) and calendar (Year/ Month/ Date/ Day) counter functions (BCD code); (4)Programmable square wave output signal; (5)Two Time-of-Day Alarms; (6)Oscillator Stop Flag; (7)Operating range: 1.8V to 5.5V.

Diagrams

PT7C4337 circuit diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
PT7C4337WEX
PT7C4337WEX

IC RTC ALARM 8SOIC
Data Sheet
0-1: $0.96
1-10: $0.86
10-25: $0.76
25-100: $0.68
100-250: $0.59
250-500: $0.53
500-1000: $0.42
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
PT7C4311WEX
PT7C4311WEX

IC RTC LEAP YEAR Y2K 8SOIC
Data Sheet
0-1: $1.00
1-10: $0.90
10-25: $0.79
25-100: $0.71
100-250: $0.62
250-500: $0.55
500-1000: $0.44
PT7C4337WEX
PT7C4337WEX

IC RTC ALARM 8SOIC
Data Sheet
0-1: $0.96
1-10: $0.86
10-25: $0.76
25-100: $0.68
100-250: $0.59
250-500: $0.53
500-1000: $0.42
PT7C43390WEX
PT7C43390WEX

IC REAL TIME CLOCK 8SOIC
Data Sheet
0-1: $0.96
1-25: $0.76
25-100: $0.68
100-250: $0.59
250-500: $0.53
500-1000: $0.42
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Data Sheet
Negotiable 
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PT7C5022
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Data Sheet
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PT7C4563UEX
PT7C4563UEX

IC REAL TIME CLOCK 8MSOP
Data Sheet
0-1: $0.91
1-25: $0.72
25-100: $0.65
100-250: $0.56
250-500: $0.50
500-1000: $0.40