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Infineon Technologies CY8C3244LTI-123T — Microcontrollers & Processors (MCU / MPU / DSP)
Infineon Technologies

CY8C3244LTI-123T PSOC 3 MCU, 50 MHz 8051, 16 KB Flash

MPNCY8C3244LTI-123T
End of Life

Infineon Technologies PSOC® 3 CY8C32xx series 8-bit MCU, 50 MHz 8051 core, 16 KB Flash, 2 KB RAM, 512 B EEPROM, 48-VFQFN Exposed Pad, Tape & Reel.

$9.04Ref. price · indicative, final on quote
CY8C3244LTI-123T datasheet
Packaging48-VFQFN Exposed Pad
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

CY8C3244LTI-123T Technical Specifications
ParameterValue
SeriesPSOC® 3 CY8C32xx
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.71V ~ 5.5V
Operating temperature-40°C ~ 85°C (TA)
Speed50MHz
PackageTape & Reel (TR); Cut Tape (CT)
RAM size2K x 8
Core size8-Bit
EEPROM size512 x 8
PeripheralsCapSense, DMA, POR, PWM, WDT
ConnectivityEBI/EMI, I2C, LINbus, SPI, UART/USART
Number of i (O)25
Core processor8051
Case48-VFQFN Exposed Pad
Data convertersA/D 16x12b; D/A 1x8b
Program memory size16KB (16K x 8)

Product details

50 MHz 8051 with on-chip CapSense and mixed-signal

The CY8C3244LTI-123T is an active-production 8-bit MCU from the PSOC 3 CY8C32xx family, built around a 50 MHz 8051 core. The 16 KB flash and 2 KB RAM budget fits moderate sensor-fusion and human-interface applications where the CapSense peripheral handles touch sensing without a separate controller.

16-channel 12-bit ADC and serial connectivity

The integrated 16-channel, 12-bit ADC samples analog sensors directly — thermistors, potentiometers, current-shunt outputs — without an external converter. A single 8-bit DAC provides analog output for set-point or trim signals.

48-QFN footprint and industrial temperature grade

Housed in a 48-VFQFN exposed-pad package measuring 7x7 mm, the CY8C3244LTI-123T suits space-constrained PCBs. The ROHS3 compliance (no exemptions) avoids future substance-restriction supply-chain issues.

Frequently asked questions

What is the closest functional alternative to CY8C3244LTI-123T?

The CY8C4245LQI-483 is a PSOC 4 device with a 48 MHz ARM Cortex-M0 core and 34 I/Os, but it is not pin-compatible — it uses a different package and supply architecture. The CY8C29566-24AXIT from the PSOC 1 family runs a 24 MHz M8C core with 40 I/Os in a TQFP package, so a board redesign is required for either migration path.

What compliance documentation does Infineon provide for CY8C3244LTI-123T?

The part is ROHS3 compliant. Infineon publishes a datasheet, application notes for the PSOC 3 family, and a PCN subscription feed for any changes. No UL or IEC certification is listed for this MCU.