Real Time Clocks
Real Time Clocks (RTCs) provide time and/or date information in almost any electronic device which needs to keep accurate time. The clock types are binary counter, clock/calendar/supervisor, elapsed time counter, phantom time chip, portable system controller, temperature recorder, time event recorder, and timer clock peripheral. They contain memory sizes ranging from 2 B to 2 MB and have interface options of I2C, Parallel, Serial, SPI, 1-Wire, 2-Wire, 3-Wire, and 4-Wire.
Sourcing Diodes Incorporated Real Time Clocks: in-stock lines for quick ship, BOM matching for multi-line builds, and original-channel screening — not keyword stuffing.
Product List
Total Components: 75
| Product | Pricing | Datasheet | Features | Memory Size | Time Format | Date Format | Interface | Voltage - Supply, Battery | Current - Timekeeping (Max) | Type | Mounting Type | Operating Temperature | Voltage - Supply | Package / Case | Supplier Device Package | Stock & Quantity |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 PT7C4337ACSE Diodes Incorporated | 1 $7.1200 | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.8µA @ 1.3V ~ 1.8V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.8V ~ 5.5V | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC | 5,837 | |
 PT7C4302WE Diodes Incorporated | Leap Year, NVSRAM, Square Wave Output, Trickle-Charger | 31B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 3-Wire Serial | 1.5V ~ 5.5V | 25.3µA ~ 81µA @ 2V ~ 5V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.2V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 2,383 | ||
PT7C4307WE Diodes Incorporated | Alarm, Leap Year, NVSRAM, Square Wave Output | 56B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 2V ~ 3.5V | 1.5mA @ 4.5V ~ 5.5V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 4.5V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 2,377 | ||
PT7C4311WE Diodes Incorporated | Leap Year, Square Wave Output, Y2K | 56B | HH:MM:SS (24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 2V ~ 5.5V | 70µA @ 1.5V ~ 5.5V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.2V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 3,738 | ||
 PT7C4337UE Diodes Incorporated | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.8µA @ 1.3V ~ 1.8V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.8V ~ 5.5V | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-MSOP | 1,560 | ||
PT7C4337WE Diodes Incorporated | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.8µA @ 1.3V ~ 1.8V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.8V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 4,585 | ||
PT7C433833UE Diodes Incorporated | Leap Year, NVSRAM, Square Wave Output | 56B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 1.5V ~ 3.7V | 125µA @ 2.7V ~ 5.5V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 2.7V ~ 5.5V | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-MSOP | 8,246 | ||
PT7C43390LE Diodes Incorporated | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.65µA ~ 0.7µA @ 3V ~ 5V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.3V ~ 5.5V | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-MSOP | 8,477 | ||
 PT7C4372ALE Diodes Incorporated | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.8µA @ 3V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.8V ~ 6V | 8-TSSOP (0.173", 4.40mm Width) | 8-TSSOP | 7,647 | ||
PT7C43190LEX Diodes Incorporated | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 3-Wire Serial | - | 0.6µA ~ 14µA @ 3V ~ 5V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.35V ~ 5.5V | 8-TSSOP (0.173", 4.40mm Width) | 8-TSSOP | 5,296 | ||
PT7C43190WEX Diodes Incorporated | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 3-Wire Serial | - | 0.6µA ~ 14µA @ 3V ~ 5V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.35V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 3,446 | ||
PT7C433833WE Diodes Incorporated | Leap Year, NVSRAM, Square Wave Output | 56b | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 1.5V ~ 3.7V | 125µA @ 2.7V ~ 5.5V | Clock/Calendar | Surface Mount | -40°C ~ 85°C (TA) | 2.7V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 9,339 | ||
PT7C433833WEX Diodes Incorporated | Leap Year, NVSRAM, Square Wave Output | 56b | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 1.5V ~ 3.7V | 125µA @ 2.7V ~ 5.5V | Clock/Calendar | Surface Mount | -40°C ~ 85°C (TA) | 2.7V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 8,359 | ||
PT7C43390WE Diodes Incorporated | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.6µA ~ 0.7µA @ 3V ~ 5V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.35V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 3,779 | ||
PT7C4372AWE Diodes Incorporated | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.8µA @ 3V | Clock/Calendar | Surface Mount | -40°C ~ 85°C (TA) | 1.8V ~ 6V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 1,818 | ||
PT7C4372AWEX Diodes Incorporated | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.8µA @ 3V | Clock/Calendar | Surface Mount | -40°C ~ 85°C (TA) | 1.8V ~ 6V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 5,754 | ||
PT7C4563UE Diodes Incorporated | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.65µA ~ 0.85µA @ 3V ~ 5V | Clock/Calendar | Surface Mount | -40°C ~ 85°C (TA) | 1.3V ~ 5.5V | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-MSOP | 4,316 | ||
PT7C4337LE Diodes Incorporated | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.8µA @ 1.3V ~ 1.8V | Clock/Calendar | Surface Mount | -40°C ~ 85°C (TA) | 1.8V ~ 5.5V | 8-TSSOP (0.173", 4.40mm Width) | 8-TSSOP | 3,317 | ||
PT7C4337LEX Diodes Incorporated | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.8µA @ 1.3V ~ 1.8V | Clock/Calendar | Surface Mount | -40°C ~ 85°C (TA) | 1.8V ~ 5.5V | 8-TSSOP (0.173", 4.40mm Width) | 8-TSSOP | 2,637 | ||
PT7C43390WEX Diodes Incorporated | 1 $1.7200 | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.65µA ~ 0.7µA @ 3V ~ 5V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.3V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 6,305 |