R5F523E5ADNF#20

32-MHz, 32-bit RX MCUs with up to 256-KB flash memory, 2 low-noise and low-drift 24-bit delta-sigma A/D converters, rail-to-rail programmable gain instrumentation amplifiers, a low-drift voltage reference, and on-chip excitation current sources

Applications

• General industrial and consumer equipment

Key features

• 32-bit RXv2 CPU core
• Max. operating frequency: 32 MHz Capable of 64 DMIPS in operation at 32 MHz
• Enhanced DSP: 32-bit multiply-accumulate and 16-bit multiplysubtract instructions supported
• Built-in FPU: 32-bit single-precision floating point (compliant to IEEE754)
• Divider (fastest instruction execution takes two CPU clock cycles)
• Fast interrupt
• CISC Harvard architecture with 5-stage pipeline
• Variable-length instructions, ultra-compact code
• On-chip debugging circuit
• Memory protection unit (MPU) supported
• Low power design and architecture
• Operation from a single 1.8-V to 5.5-V supply
• Three low power consumption modes
• Low power timer (LPT) that operates during the software standby state
• On-chip flash memory for code
• Read cycle of 31.25 ns in 32-MHz operation
• No waiting time when the CPU is reading at full speed
• 128-Kbyte to 256-Kbyte capacities
• On-board or off-board user programming
• Programmable at 1.8 V
• For instructions and operands
• On-chip data flash memory
• 8 Kbytes (1,000,000 program/erase cycles (typ.))
• BGO (Background Operation)
• On-chip SRAM, no wait states
• 16- to 32-Kbyte size capacities
• Data transfer functions
• DMAC: Incorporates four channels
• DTC: Four transfer modes
• ELC
• Module operation can be initiated by event signals without using interrupts.
• Linked operation between modules is possible while the CPU is sleeping.
• Reset and supply management
• Seven types of reset, including the power-on reset (POR)
• Low voltage detection (LVD) with voltage settings
• Clock functions
• Main clock oscillator frequency: 1 MHz to 20 MHz
• External clock input frequency: Up to 20 MHz
• PLL circuit input: 4 MHz to 8 MHz
• On-chip low- and high-speed oscillators, dedicated on-chip low-speed oscillator for the IWDT
• Clock frequency accuracy measurement circuit (CAC)
• Independent watchdog timer
• 15-kHz on-chip oscillator produces a dedicated clock signal to drive IWDT operation.
• Useful functions for IEC60730 compliance
• Self-diagnostic and disconnect detection assistance functions for the A/ D converter, clock frequency accuracy measurement circuit, independent watchdog timer, RAM test assistance functions using the DOC, etc.
• MPC
• Input/output functions selectable from multiple pins
• Up to eight communication functions
• CAN (one channel) compliant to ISO11898-1: Transfer at up to 1 Mbps
• SCI with many useful functions (up to four channels), asynchronous mode, clock synchronous mode, smart card interface, reduction of errors in communications using the bit rate modulation function
• I²C bus interface: Transfer at up to 400 kbps, capable of SMBus operation (one channel)
• RSPI (one channel): Transfer at up to 16 Mbps
• Up to 12 extended-function timers
• 16-bit MTU: input capture, output compare, complementary PWM output, phase counting mode (six channels)
• 8-bit TMR (four channels)
• 16-bit compare-match timers (two channels)
• Analog functions
• Two 24-bit delta-sigma A/D converters
• A/D converter with up to 23-bit effective resolution (gain = 1, output data rate = 7.6 SPS)
• High-precision programmable gain instrumentation amplifier, 30 nV_RMS (gain = 128, output data rate = 7.6 SPS)
• Rail-to-rail programmable gain instrumentation amplifier (gain = 1 to 128)
• Two operating modes and programmable data rates, Normal mode: Output data rate of 7.6 SPS to 15625 SPS, Low power mode: Output data rate of 1.9 SPS to 3906 SPS
• Offset drift 10 nV/℃ (gain = 128)
• Gain drift 1 ppm/℃ (gain = 1 (PGA), gain = 2 to 128)
• Up to six differential inputs, 11 single-ended inputs
• Fourth-order sinc filter
• Simultaneous 50 Hz/60 Hz rejection (output data rate = 10, 54 SPS)
• Offset error and gain error calibration
• Inter-unit A/D conversion synchronized start
• Delta-sigma A/D input disconnect detection assist
• Delta-sigma A/D reference voltage external input
• Voltage reference output voltage: 2.5 V, temperature drift: 10 ppm/℃, output current: ±10 mA
• Excitation current sources: Up to four, Output current: 50 μA to 1000 μA, current matching: ±0.2%, drift matching: 5 ppm/℃
• Bias voltage generator output voltage: (AVCC0 + AVSS0)/2
• Temperature sensor: Accuracy ±5℃
• Low-side switch: 10 Ω on-resistance
• Low power-supply-voltage detectors
• Delta-sigma A/D input voltage fault detectors
• Delta-sigma A/D reference voltage fault detectors and disconnect detectors
• Excitation current source disconnect detectors
• 12-bit A/D converter
• Capable of conversion within 1.4 μs
• Six channels
• Sampling time can be set for each channel
• Self-diagnostic function and analog input disconnect detection assistance function
• General I/O ports
• 5-V tolerant, open drain, input pull-up, switching of driving capacity
• -40℃ to +85℃
• -40℃ to +105℃