Renesas RX14T

The RX14T is an entry-level motor control microcontroller (MCU) featuring a 48MHz RXv2 core that delivers an excellent balance of performance, functionality, and cost. Designed for home appliances and industrial equipment, the RX14T provides robust 5V operation with outstanding noise immunity, making it highly reliable in electrically noisy environments. With integrated inverter control timers, high-speed on-chip oscillator (HOCO), 2 units of 12-bit analog-to-digital converter (ADC), single-ended programmable gain amplifier (PGA), and comparator (CMP), the RX14T consolidates essential motor control functions into a single chip. This integration helps reduce PCB size, lower component count, and optimize BOM. High compatibility with RX13T and RX23T enables seamless reuse of existing software and hardware resources, supporting smooth migration to next-generation designs.

Key features

• Capability of control Single motor + α(System control, PFC control etc.)
• RX13T and RX23T Successor, Pin to Pin compatible
• 5V support, RXv2 48MHz with TFUv1(Trigonometric accelerator)
• Increase GPIO(ex. GPIO 44pin on 48pinPKG), System pin 4pin only
• Inverter timer – Both have MTU3 and GPT: Set pin-layout with PWM output for Dual motors
• 12bit ADC 2unit, Conv.time min 0.5us. PGA 3ch, CMP 3ch with DAC 2ch for ref voltage
• First RX product to support high temperatures T_a =125℃
• QFN 24,32,48pin, Wide pitch PKG 32(0.8mm),44(0.8mm),52(0.65mm) 64(0.65mm)pin

Applications

• Home appliance
• AC Indoor unit
• Refrigerator
• Dishwasher
• IH Cooker
• Building automation
• Water pump
• Fan control
• Small motor
• Power tool
• Cleaner
• Circulator