FT61F022A-RB from FMD Fremont Micro Devices, in a SOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	VDD	power_in	Positive supply input. Operating range 2.0-5.5 V (VPOR ~5.5 V). Decouple locally with 100 nF to GND.
2	PA7/OSC1/CLKI/T1CKI	bidirectional	General-purpose I/O with pull-up/down. Muxed with crystal oscillator input (OSC1) for LP/XT modes, external clock input (CLKI) for EC mode, and Timer1 external clock input (T1CKI).
3	PA6/OSC2/CLKO/T1G	bidirectional	General-purpose I/O with pull-up/down. Muxed with crystal oscillator output (OSC2) for LP/XT modes, system clock output (CLKO), and Timer1 gate input (T1G).
4	PA4/VREGP/ATEST0	bidirectional	General-purpose I/O with pull-up/down. Muxed with VREG high-voltage regulator output (VREGP) and analog test output (ATEST0). When VREG is enabled, connect an external decoupling capacitor.
5	PC3/P1C/PWM4	bidirectional	General-purpose I/O with pull-up/down. Muxed with ECCP output P1C and independent PWM4 output.
6	PC2/P1D/PWM5/AN6	bidirectional	General-purpose I/O with pull-up/down. Muxed with ECCP output P1D, independent PWM5 output, and ADC analog input channel AN6.
7	PC4/P1B/PWM3/C2OUT	bidirectional	General-purpose I/O with pull-up/down. Muxed with ECCP output P1B, independent PWM3 output, and Comparator 2 output (C2OUT).
8	PC1/AN5/C2IN-/P1E/INT	bidirectional	General-purpose I/O with pull-up/down. Muxed with ADC analog input AN5, Comparator 2 inverting input (C2IN-), ECCP output P1E, and external edge-triggered interrupt input (INT).
9	PC0/AN4/C2IN+/P1F/VREF	bidirectional	General-purpose I/O with pull-up/down. Muxed with ADC analog input AN4, Comparator 2 non-inverting input (C2IN+), ECCP output P1F, and external ADC reference input (VREF).
10	PA3/AN3	bidirectional	General-purpose I/O with pull-up/down. Muxed with ADC analog input channel AN3.
11	PA2/AN2/C1OUT/T0CKI	bidirectional	General-purpose I/O with pull-up/down. Muxed with ADC analog input AN2, Comparator 1 output (C1OUT), and Timer0 external clock input (T0CKI).
12	PA1/AN1/C1IN-/ISPDAT	bidirectional	General-purpose I/O with pull-up/down. Muxed with ADC analog input AN1, Comparator 1 inverting input (C1IN-), and ISP/OCD serial data (ISPDAT).
13	PA0/AN0/C1IN+/ISPCLK	bidirectional	General-purpose I/O with pull-up/down. Muxed with ADC analog input AN0, Comparator 1 non-inverting input (C1IN+), and ISP/OCD serial clock (ISPCLK).
14	GND	power_in	Ground reference. Connect directly to system ground with a low-impedance return path.

Key specifications

Parameter	Value
Manufacturer	FMD Fremont Micro Devices
Package	SOP-14
Category	MCU
Pins	14

Ordering variants

Same part, different packaging or reel option.

FT61F022A-RB
FT61F022A-DRB
FT61F022B-RB
FT61F020-URB
FT61F021A-RB
FT61F021B-RB
FT61F021A-DRB
FT61F021B-DRB
FT61F02F-MRB
FT61F02FA-MRB
FT61F023-RB
FT61F023-DRB

CAD (KiCad official)

Symbol: FT61F022A-RB
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOP-14 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: FMD Fremont Micro Devices datasheet (115 pp, sha256 c673e26d7cd0b941, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF