Key facts
- Brand
- Holtek
- Model
- HT46
- Category
- Other device
- Industry
- Electronics
- Documents
- 15
- Languages
- ZH · JA
- Last added
- 2012-06-05
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Holtek HT46RB50 Microcontroller User Manual
This manual describes the HT46RB50 8‑bit microcontroller, covering its architecture, pin functions, and peripheral features such as USB 1.1, ADC, and PWM. It includes information on package options (28‑pin SOP‑SKDIP and 48‑pin SSOP) and how to configure the device for various applications.
The document also lists electrical and timing characteristics, memory organization, interrupt handling, and programming guidelines, helping designers integrate the chip into their projects while ensuring reliable operation within the specified temperature and voltage ranges. This manual is written in Japanese.
Holtek HT46 specifications
| Operating Voltage | 2.2 V to 5.5 V |
|---|---|
| Package | 28‑pin SKDIP/SOP |
| ADC Resolution | 12‑bit, 8 channels |
| RAM Size | 192 × 8 bits (HT46R53A) / 280 × 8 bits (HT46R54A) |
| Power Consumption (typical) | 500 mW |
| I/O Pins | 22 bidirectional I/O pins |
| External Interrupt Pins | 1 external interrupt pin |
Source: HOLTEK HT46R53A/HT46R54A A/D Type 8-Bit OTP microcontroller Manual
All Holtek HT46 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Instruction set, parameters and examples for configuring or programming the device.
- HOLTEK HT46R32/HT46R34 A/D Type 8-Bit OTP MCU with OPA
- HOLTEK HT46R22/HT46C22 8-Bit A/D Type MCU
- HOLTEK SEMICONDUCTO HT46R47 HT46R22 HT46R23 HT46R24 A/D microcontroller Manual
- HOLTEK HT46R22/46C22 microcontroller Manual
- HOLTEK HT46R46/C46/R47/C47/R48A/C48A/R49 Manual
- HOLTEK HT46R22/46C22 A/D Type 8-Bit microcontroller Manual
- HOLTEK HT46R22/HT46C22 A/D Type 8-Bit microcontroller Manual
- HOLTEK HT46R32/HT46R34 A/D+OPA Type 8-Bit microcontroller Manual
- HOLTEK HT46R62/HT46C62 A/D+LCD Type 8-Bit microcontroller Manual
Questions answered in these manuals
What is the operating voltage range of the HT46R53A/HT46R54A?
The device operates from 2.2 V up to 5.5 V.
From: HOLTEK HT46R53A/HT46R54A A/D Type 8-Bit OTP microcontroller Manual
How many I/O pins does the microcontroller provide?
It provides 22 bidirectional I/O pins.
From: HOLTEK HT46R53A/HT46R54A A/D Type 8-Bit OTP microcontroller Manual
What is the maximum charging time before the charger stops automatically?
The charger stops charging after six hours.
When does the charger switch to fast‑charge mode?
If the battery voltage exceeds 1.2 V, the charger enters fast‑charge mode; otherwise it uses slow‑charge.
How many bidirectional I/O pins does the HT46R23/HT46C23 provide?
It provides up to 23 bidirectional I/O pins.
From: HOLTEK HT46R23/HT46C23 A/D Type 8-Bit microcontroller Manual
What is the resolution and number of channels of the built‑in A/D converter?
The microcontroller includes an 8‑channel, 10‑bit A/D converter.
From: HOLTEK HT46R23/HT46C23 A/D Type 8-Bit microcontroller Manual