Renesas Electronics RX130 32-bit Microcontrollers

Renesas Electronics RX130 32-bit Microcontrollers are low-power, highly-integrated RX MCUs with enhanced touch key function and 5V operation support. The RX130 MCUs integrate a 36-channel capacitive touch sensor offering advanced noise immunity, sensitivity, and water resistance. As a result, malfunctions have been reduced, and touch keys can now be applied to various materials, such as wood, other than the typical acrylic or glass. The RX130 Touch feature is ideal for consumer electronics applications used in wet environments such as the kitchen or bath.

RX130 Microcontrollers are designed to conform to the IEC/UL60730 safety standard for consumer electronics, making them suitable for applications such as home appliances, white goods, and other devices with touch panel functions. The RX130 MCUs also offer ultra-low power consumption, consuming only 0.37µA in sleep mode with a recovery time of only 4.8µs. Renesas RX130 MCUs are offered a wide range of low-profile QFP and QFN packages for design flexibility.

Features

32-bit RX CPU core
- Maximum operating frequency: 32MHz
- Capable of 50 DMIPS in operation at 32MHz
- Variable-length instructions, ultra-compact code
- On-chip debugging circuit
Low-power design and architecture
- Operation from a single 1.8V to 5.5V supply
- Three low-power consumption modes
- Low power timer (LPT) that operates during the software standby state
- Supply current
- High-speed operating mode: 96µA/MHz
- Supply current in software standby mode: 0.37µA
- Recovery time from software standby mode: 4.8µs
On-chip flash memory for code, no wait states
On-chip data flash memory
On-chip SRAM, no wait states
Reset and supply management
- Eight types of reset, including the power-on reset (POR)
- Low voltage detection (LVD) with voltage settings
Clock functions
- External clock input frequency: Up to 20MHz
- Main clock oscillator frequency: 1 to 20MHz
- Sub clock oscillator frequency: 32.768 kHz
- PLL circuit input: 4MHz to 8MHz
- Low-speed on-chip oscillator: 4MHz
- High-speed on-chip oscillator: 32MHz ± 1 %
- IWDT-dedicated on-chip oscillator: 15 kHz
- Generate a 32.768kHz clock for the real-time clock
- On-chip clock frequency accuracy measurement circuit
Realtime clock
- Adjustment functions (30 seconds, leap year, and error)
- Calendar count mode or binary count mode selectable

Independent watchdog timer
Up to 6 communication functions
- I²C bus interface: Transfer at up to 400 kbps, capable of SMBus operation (one channel)
12-bit A/D converter
- Capable of conversion within 1.4μs 17 channels
- Sampling time can be set for each channel
- Conversion results compare features
- Self-diagnostic function and analog input disconnection detection assistance function
- Double trigger function for motor control
D/A converter
- Two channels
Capacitive touch sensing unit
- Self-capacitance method: A single pin configures a single key, supporting up to 36 keys
- Mutual capacitance method: Matrix configuration with 36pins, supporting up to 324 keys
Comparator B
- Two channels
General I/O ports
- 5-V tolerant, open drain, input pull-up, switching of driving capacity
Temperature sensor
Unique ID
- 32-byte ID code for the MCU
Package options:
- 80-pin LFQFP, 12mm × 12mm, 0.5mm pitch
- 64-pin LFQFP, 10mm × 10mm, 0.5mm pitch
- 64-pin LQFP, 14mm × 14mm, 0.8mm pitch
- 48-pin LFQFP, 7mm × 7mm, 0.5mm pitch
- 48-pin HWQFN, 7mm × 7mm, 0.5mm pitch