低功耗平台(63 μA/MHz)，适用于通用应用，1.8 v-5.5 v工作;_2-16千字节的代码闪存，31 DMIPS在24 MHZ
Ultra-low power consumption technology
• VDD = single power supply voltage of 1.8 to 5.5 V which
can operate at a low voltage
• HALT mode
• STOP mode
• SNOOZE mode
RL78 CPU core
• CISC architecture with 3-stage pipeline
• Minimum instruction execution time: Can be changed
from high speed (0.04167 μs: @ 24 MHz operation with
high-speed on-chip oscillator) to ultra-low speed (1 μs:@ 1 MHz operation)
• Address space: 1 MB
• General-purpose registers: (8-bit register x 8) x 4 banks
• On-chip RAM: 256 B to 2 KB
Code flash memory
• Code flash memory: 2 to 16 KB
• Block size: 1 KB
• Prohibition of block erase and_rewriting (security
function)
• On-chip debug function
• Self-programming (with flash shield window function)
Data flash memory Note2
• Data flash memory: 2 KB
• Back ground operation (BGO): Instructions are
executed from the program memory while rewriting the
data flash memory.
• Number of rewrites: 1,000,000 times (TYP.)
• Voltage of rewrites: VDD = 1.8 to 5.5 V
High-speed on-chip oscillator
• Select from 24 MHz, 16 MHz, 12 MHz, 8 MHz, 6 MHz,
4 MHz, 3 MHz, 2 MHz, and_1 MHz
• High accuracy: +/- 1.0 %_(VDD = 1.8 to 5.5 V, TA = -20to +85 °C)
Operating ambient temperature
• TA = -40 to +85 °C (A: Consumer applications, D:
Industrial applications)
• TA = -40 to +105 °C (G: Industrial applications) Note2
Power management and_reset function
• On-chip power-on-reset (POR) circuit
• On-chip voltage detector (LVD) (Select interrupt andreset from 12 levels)
• 2 channels
• Number of clocks during transfer between 8/16-bit SFR
and_internal RAM: 2 clocks
Multiplier and_divider/multiply-accumulator
• 16 bits x 16 bits = 32 bits (Unsigned or signed)
• 32 bits x 32 bits = 32 bits (Unsigned)
• 16 bits x 16 bits + 32 bits = 32 bits (Unsigned or
signed)
Serial interface
• Simplified SPI (CSI Note1): : 1 to 3 channels
• UART : 1 to 3 channels
• Simplified I2C communication : 0 to 3 channels
• I2C communication : 1 channel
Timer
• 16-bit timer : 4 to 8 channels
• 12-bit interval timer : 1 channel
• Watchdog timer : 1 channel (operable with the
dedicated low-speed on-chip
oscillator)
A/D converter
• 8/10-bit resolution A/D converter (VDD = 1.8 to 5.5 V)
• 8 to 11 channels, internal reference voltage (1.45 V),
and_temperature sensor Note2
I/O port
• I/O port: 18 to 26
(N-ch open drain I/O [withstand_voltage of 6 V]: 2,
N-ch open drain I/O [VDD withstand_voltage]: 4 to 9)
• Can be set to N-ch open drain, TTL input buffer, and_on-chip pull-up resistor
• Different potential interface: Can connect to a 1.8/2.5/3
