R5F51308AGFM中文资料瑞萨数据手册PDF规格书

特性 Features

■ 32-bit RX CPU core

• Max. operating frequency: 32 MHz

Capable of 50 DMIPS in operation at 32 MHz

• Accumulator handles 64-bit results (for a single instruction) from

32-bit × 32-bit operations

• Multiplication and division unit handles 32-bit × 32-bit operations

(multiplication instructions take one CPU clock cycle)

• Fast interrupt

• CISC Harvard architecture with 5-stage pipeline

• Variable-length instructions, ultra-compact code

• On-chip debugging circuit

■ 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

• Supply current

High-speed operating mode: 96 μA/MHz

Supply current in software standby mode: 0.37 μA

• Recovery time from software standby mode: 4.8 μs

■ On-chip flash memory for code, no wait states

• 64 K/128 K/256 K/383 K/512 Kbytes

• Operation at 32 MHz, read cycle of 31.25 ns

• No wait states for reading at full CPU speed

• 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

• 10 K/16 K/32 K/48 Kbytes size capacities

■ DTC

• Four transfer modes

• Transfer can be set for each interrupt source.

■ 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

• 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 20 MHz

• Main clock oscillator frequency: 1 to 20 MHz

• Sub clock oscillator frequency: 32.768 kHz

• PLL circuit input: 4 MHz to 8 MHz

• Low-speed on-chip oscillator: 4 MHz

• High-speed on-chip oscillator: 32 MHz ± 1

• IWDT-dedicated on-chip oscillator: 15 kHz

• Generate a 32.768 kHz clock for the real-time clock

• On-chip clock frequency accuracy measurement circuit (CAC)

■ Realtime clock

• Adjustment functions (30 seconds, leap year, and error)

• Calendar count mode or binary count mode selectable

■ 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 disconnection-detection assistance functions for

the A/D converter, clock frequency accuracy measurement circuit,

independent watchdog timer, RAM test assistance functions using the

DOC, etc.