R8C/21

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MPU & MCU

R8C Family

R8C/2x

Product Specifications
Characteristics

Table 1. Performance Outline of R8C/21 Group

Item		Performance
CPU	Basic Instructions	89 instructions
	Minimum Instruction Execution Time	50 ns (f(XIN) = 20 MHz, VCC = 3.0 to 5.5 V) 100 ns (f(XIN) = 10 MHz, VCC = 2.7 to 5.5 V) (1)
	Operating Mode	Single-chip mode
	Address Space	1 Mbytes
	Memory Capacity	See Product Lineup.
Peripheral Functions	Port	I/O port: 41 pins, Input port: 3 pins
	Timer	Timer RA: 8 bits × 1 channel Timer RB: 8 bits × 1 channel (Each timer equipped with 8-bit prescaler) Timer RD: 16 bits × 2 channels (Input capture and output compare circuits) Timer RE: (With compare match function)
	Serial Interface	1 channel Clock synchronous, Clock asynchronous 1 channel Clock asynchronous 1 channel I²C-bus interface (IIC) (2) Chip-select clock synchronous (SSU)
	LIN Module	Hardware LIN: 1 channel (Timer RA, UART0)
	A/D Converter	10-bit A/D converter: 1 circuit, 12 channels
	Watchdog Timer	15 bits × 1 channel (with prescaler) Reset start selectable
	Interrupt	Internal: 11 factors, External: 5 factors, Software: 4 factors, Priority level: 7 levels
	Clock Generation Circuit	2 circuits XIN clock generation circuit (with on-chip feedback resistor) On-chip oscillator (high speed, low speed)* * High-speed on-chip oscillator has a frequency adjustment function.
	Oscillation Stop Detection Function	XIN clock oscillation stop detection function
	Voltage Detection Circuit	Included (1)
	Power-On Reset Circuit	Included (1)
Electrical Characteristics	Supply Voltage	VCC = 3.0 to 5.5 V (f(XIN) = 20 MHz) VCC = 2.7 to 5.5 V (f(XIN) = 10 MHz) (1)
Electrical Characteristics	Current Consumption	Typ. 11.0 mA (VCC = 5.0 V, f(XIN) = 20 MHz, When high-speed on-chip oscillator stops) Typ. 5.3 mA (VCC = 3.0 V, f(XIN) = 10 MHz, When high-speed on-chip oscillator stops)
Flash Memory	Program/Erase Supply Voltage	VCC = 2.7 to 5.5 V
Flash Memory	Program/Erase Endurance	10,000 times (Data Flash) 1,000 times (Program ROM)
Operating Ambient Temperature		−40 to 85 degrees C (J Version) −40 to 125 degrees C (K Version) (Option (3))
Package		48-pin plastic mold LQFP

Note:
1. Because this product is under development, specifications may be changed.
2. I²C is a trademark of Philips Semiconductors Corporation.
3. Please send inquiries regarding specifications when optional features are used.