Part Details for HT1381 by Holtek Semiconductor Inc
Results Overview of HT1381 by Holtek Semiconductor Inc
- Distributor Offerings: (2 listings)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (0 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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Applications
Consumer Electronics
Healthcare
HT1381 Information
HT1381 by Holtek Semiconductor Inc is a Timer or RTC.
Timers or RTCs are under the broader part category of Microcontrollers and Processors.
Microcontrollers (MCUs) are small, low-power integrated circuits used to control embedded systems. Microcontrollers are primarily used to automate and control devices. Read more about Microcontrollers and Processors on our Microcontrollers and Processors part category page.
Price & Stock for HT1381
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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Quest Components | 23 |
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$5.0000 / $7.5000 | Buy Now | |
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Win Source Electronics | Serial Timekeeper Chip | 66941 |
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$0.4354 / $0.6537 | Buy Now |
Part Details for HT1381
HT1381 CAD Models
HT1381 Part Data Attributes
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HT1381
Holtek Semiconductor Inc
Buy Now
Datasheet
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HT1381
Holtek Semiconductor Inc
Timer or RTC, Volatile, CMOS, PDSO8,
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| Rohs Code | No | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | HOLTEK SEMICONDUCTOR INC | |
| Reach Compliance Code | unknown | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Clock Frequency-Max | 0.032768 MHz | |
| External Data Bus Width | ||
| Information Access Method | SERIAL, 3-WIRE | |
| Interrupt Capability | N | |
| JESD-30 Code | R-PDSO-G8 | |
| JESD-609 Code | e0 | |
| Length | 4.9 mm | |
| Number of Terminals | 8 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Equivalence Code | SOP8,.25 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 1.75 mm | |
| Supply Current-Max | 0.0012 mA | |
| Supply Voltage-Max | 5.5 V | |
| Supply Voltage-Min | 2 V | |
| Supply Voltage-Nom | 5 V | |
| Surface Mount | YES | |
| Technology | CMOS | |
| Temperature Grade | COMMERCIAL | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 1.27 mm | |
| Terminal Position | DUAL | |
| Time-Min | SECONDS | |
| Volatile | YES | |
| Width | 3.9 mm | |
| uPs/uCs/Peripheral ICs Type | TIMER, REAL TIME CLOCK |
HT1381 Frequently Asked Questions (FAQ)
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The recommended operating voltage range for the HT1381 is 2.7V to 5.5V, although it can operate down to 2.3V with reduced performance.
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To ensure the internal oscillator is stable, a 1uF to 10uF capacitor should be connected between the OSC1 pin and GND, and a 1kΩ to 10kΩ resistor should be connected between the OSC1 pin and VDD.
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The maximum frequency of the HT1381's internal oscillator is 4MHz, although it can be adjusted to lower frequencies using the FSEL pin.
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No, the HT1381's I/O pins are digital-only and cannot be used as analog inputs. If analog inputs are required, an external ADC should be used.
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The HT1381 has a built-in watchdog timer that can be enabled by setting the WDTEN bit in the SYSCON register. The watchdog timer period can be adjusted using the WDTPER register.