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HT66F50 on a board, in 3D

HT66F50

Holtek Semicon

12bit 2.2V~5.5V 8KB FLASH Others LQFP-44(10x10) Microcontrollers (MCU/MPU/SOC) ROHS

Extended
DatasheetJLCPCBLCSCholtek-semicon/HT66F50
Category
Microcontroller Units (MCUs, MPUs, SOCs)
Package
LQFP-44(10x10)
Pins
44

Overview

The HT66F50 is a microcontroller Unit made by Holtek Semicon in a LQFP-44(10x10) package with 44 pins. 12bit 2.2V~5.5V 8KB FLASH Others LQFP-44(10x10) Microcontrollers (MCU/MPU/SOC) ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:HT66F50, from EasyEDA) and its footprint (Package_QFP:LQFP-44_10x10mm_P0.8mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C189816).

Symbol

PB51PA72PA63PA54PA45PA36PA27PA18PA09PF110PF011PE712PE613VSS14PB415PB316PB217PB118VDD19PB020PE521PE422PC123PC024PC725PC626PE327PE228PE129PE030PD531PD432PD333PD234PD135PD036PC537PC438PC339PC240PD741PD642PB743PB644
EasyEDA_Cloud:HT66F50From EasyEDA

Footprint

1234567891011121314151617181920212223242526272829303132333435363738394041424344
Package_QFP:LQFP-44_10x10mm_P0.8mmFrom KiCad's library

Parameters

16
16Bit Timer
1
ADC (Bit)
12bit
CCP Capture/Compare
有
CPU Core
Others
I2C
1
Internal Comparator
有
Internal Oscillator
有
Low-Voltage Detect
有
Operating Temperature Range
-40℃~+85℃
Operating Voltage Range
2.2V~5.5V
Peripheral/Function
Low-Voltage检测；WDT；CCP捕获/比较；10BitTimer；LCD/LED驱动
Program Memory Type
FLASH
Program Storage Size
8KB
RAM Size
384Byte
Voltage - Supply
2.2V~5.5V
Watchdog
有

Order codes

1

Pinout

44
The pins of the HT66F50
PinNameType
1PB5Unspecified
2PA7Unspecified
3PA6Unspecified
4PA5Unspecified
5PA4Unspecified
6PA3Unspecified
7PA2Unspecified
8PA1Unspecified
9PA0Unspecified
10PF1Unspecified
11PF0Unspecified
12PE7Unspecified
13PE6Unspecified
14VSSUnspecified
15PB4Unspecified
16PB3Unspecified
17PB2Unspecified
18PB1Unspecified
19VDDUnspecified
20PB0Unspecified
21PE5Unspecified
22PE4Unspecified
23PC1Unspecified
24PC0Unspecified
25PC7Unspecified
26PC6Unspecified
27PE3Unspecified
28PE2Unspecified
29PE1Unspecified
30PE0Unspecified
31PD5Unspecified
32PD4Unspecified
33PD3Unspecified
34PD2Unspecified
35PD1Unspecified
36PD0Unspecified
37PC5Unspecified
38PC4Unspecified
39PC3Unspecified
40PC2Unspecified
41PD7Unspecified
42PD6Unspecified
43PB7Unspecified
44PB6Unspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/holtek-semicon/HT66F50" title="HT66F50 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/holtek-semicon/HT66F50.jpg" alt="HT66F50" width="1200" height="900">
A picture that opens the part, for a README
[![HT66F50](https://pcbkit.io/embed/parts/holtek-semicon/HT66F50.jpg?size=s)](https://pcbkit.io/parts/holtek-semicon/HT66F50)

Questions

Is there a KiCad symbol and footprint for the HT66F50?

Yes. The symbol is EasyEDA_Cloud:HT66F50 and the footprint Package_QFP:LQFP-44_10x10mm_P0.8mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the HT66F50?

LQFP-44(10x10), with 44 pins. Its footprint is drawn on this page.

Where is the HT66F50 datasheet?

Holtek Semicon publishes it: the Datasheet link on this page opens it.

Where can I order the HT66F50?

JLCPCB lists it as part C189816, with 0 in stock; the sellers' links on this page open their listings.

What can replace the HT66F50?

Parts like it in the library: the HC89S105AS8T7CM by Shanghai Holychip Elec, the AT89S52-24AU by Microchip Technology, the PIC16F884-I/PT by Microchip Technology and the PIC18LF44K22-I/PT by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8