| Type | Description | 
|---|---|
| Series: | - | 
| Package: | Tube | 
| Part Status: | Obsolete | 
| Type: | Clock/Calendar | 
| Features: | Alarm, NVSRAM, Square Wave Output, Y2K | 
| Memory Size: | 242B | 
| Time Format: | HH:MM:SS (12/24 hr) | 
| Date Format: | YY-MM-DD-dd | 
| Interface: | Parallel | 
| Voltage - Supply: | 4.5V ~ 5.5V | 
| Voltage - Supply, Battery: | 2.5V ~ 3.7V | 
| Current - Timekeeping (Max): | 3mA @ 5V | 
| Operating Temperature: | 0°C ~ 70°C | 
| Mounting Type: | Surface Mount | 
| Package / Case: | 24-TSSOP (0.173", 4.40mm Width) | 
| Supplier Device Package: | 24-TSSOP | 
| Image | Part Number | Description | Stock / Unit Price | 
|---|---|---|---|
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|  | RTC-72421B: ROHSEpson | IC RTC CLK/CALENDAR PAR 18-DIP | In Stock: 1,610 $7.27000 | 
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