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Infineon Technologies CY9AFAA1NPMC-G-UNE2 — Microcontrollers & Processors (MCU / MPU / DSP)

Cypress CY9AFAA1NPMC-G-UNE2 ARM Cortex-M3 MCU, 20 MHz

MPNCY9AFAA1NPMC-G-UNE2
End of Life

Cypress FM3 MB9AAA0N series CY9AFAA1NPMC-G-UNE2, 32-bit ARM Cortex-M3 MCU, 20 MHz, 64 KB Flash, 12K x 8 RAM, 84 I/O, 1.8 V to 5.5 V, -40°C to 85°C, 100-LQFP.

$9.62Ref. price · indicative, final on quote
Infineon Technologies CY9AFAA1NPMC-G-UNE2 datasheet (PDF)
Packaging100-LQFP
RoHSROHS3 Compliant
SeriesFM3 MB9AAA0N
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CY9AFAA1NPMC-G-UNE2 specifications
ParameterValue
SeriesFM3 MB9AAA0N
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 5.5V
Operating temperature-40°C ~ 85°C (TA)
Speed20MHz
PackageTray
RAM size12K x 8
Core size32-Bit Single-Core
PeripheralsLCD, LVD, POR, PWM, WDT
ConnectivityCSIO, I²C, UART/USART
Number of i (O)84
Core processorARM® Cortex®-M3
Case100-LQFP
Data convertersA/D 16x12b; D/A 2x10b
Program memory size64KB (64K x 8)

Product details

Supply range and temperature — industrial and battery-ready

On-chip analog — ADC and DAC

A 16-channel, 12-bit ADC and two 10-bit DACs are integrated, reducing external component count for analog sensor inputs and setpoint outputs. The 12-bit resolution is adequate for current-sense feedback or temperature monitoring; the 10-bit DAC can drive a simple analog reference or trim voltage.

Connectivity and serial interfaces

Serial connectivity includes CSIO, I²C, and UART/USART. No USB or CAN on this variant — if you need those, look at the FM3 MB9B310R series sibling (CY9BF314RPMC-G-JNE2) which adds USB and LINbus at 144 MHz.

Frequently asked questions

What is CY9AFAA1NPMC-G-UNE2's core speed?

The ARM Cortex-M3 core runs at 20 MHz. That is a low-to-moderate speed tier — fine for control loops, UI, and sensor fusion, but not for high-throughput DSP or video processing.

What are the closest replacement or second-source parts for CY9AFAA1NPMC-G-UNE2?

The closest functional sibling in the FM3 family is the CY9BF314RPMC-G-JNE2, which runs at 144 MHz and adds USB and LINbus, but it is a higher-performance tier.

Is CY9AFAA1NPMC-G-UNE2 RoHS compliant?

Yes, it is ROHS3 compliant per the listing.