Datasheet

R8C/28 Group, R8C/29 Group 1. Overview
Rev.2.10 Sep 26, 2008 Page 3 of 67
REJ03B0169-0210
NOTES:
1. I
2
C bus is a trademark of Koninklijke Philips Electronics N. V.
2. Specify the D, K version if D, K version functions are to be used.
Table 1.2 Functions and Specifications for R8C/29 Group
Item Specification
CPU Number of fundamental
instructions
89 instructions
Minimum instruction
execution time
50 ns (f(XIN) = 20 MHz, VCC = 3.0 to 5.5 V) (other than K version)
62.5 ns (f(XIN) = 16 MHz, VCC = 3.0 to 5.5 V) (K version)
100 ns (f(XIN) = 10 MHz, VCC = 2.7 to 5.5 V)
200 ns (f(XIN) = 5 MHz, VCC = 2.2 to 5.5 V) (N, D version)
Operating mode Single-chip
Address space 1 Mbyte
Memory capacity Refer to Table 1.4 Product Information for R8C/29 Group
Peripheral
Functions
Ports I/O ports: 13 pins, Input port: 3 pins
LED drive ports I/O ports: 8 pins (N, D version)
Timers Timer RA: 8 bits × 1 channel
Timer RB: 8 bits × 1 channel
(Each timer equipped with 8-bit prescaler)
Timer RC: 16 bits × 1 channel
(Input capture and output compare circuits)
Timer RE: With real-time clock and compare match function
(For J, K version, compare match function only.)
Serial interfaces 1 channel (UART0): Clock synchronous serial I/O, UART
1 channel (UART1): UART
Clock synchronous serial
interface
1 channel
I
2
C bus Interface
(1)
Clock synchronous serial I/O with chip select
LIN module Hardware LIN: 1 channel (timer RA, UART0)
A/D converter 10-bit A/D converter: 1 circuit, 4 channels
Watchdog timer 15 bits × 1 channel (with prescaler)
Reset start selectable
Interrupts Internal: 15 sources (N, D version), Internal: 14 sources (J, K version)
External: 4 sources, Software: 4 sources, Priority levels: 7 levels
Clock generation circuits 3 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
• XCIN clock generation circuit (32 kHz) (N, D version)
• Real-time clock (timer RE) (N, D version)
Oscillation stop detection
function
XIN clock oscillation stop detection function
Voltage detection circuit On-chip
Power-on reset circuit On-chip
Electrical
Characteristics
Supply voltage VCC = 3.0 to 5.5 V (f(XIN) = 20 MHz) (other than K version)
VCC = 3.0 to 5.5 V (f(XIN) = 16 MHz) (K version)
VCC = 2.7 to 5.5 V (f(XIN) = 10 MHz)
VCC = 2.2 to 5.5 V (f(XIN) = 5 MHz) (N, D version)
Current consumption
(N, D version)
Typ. 10 mA (VCC = 5.0 V, f(XIN) = 20 MHz)
Typ. 6 mA (VCC = 3.0 V, f(XIN) = 10 MHz)
Typ. 2.0 µA (VCC = 3.0 V, wait mode (f(XCIN) = 32 kHz)
Typ. 0.7 µA (VCC = 3.0 V, stop mode)
Flash Memory Programming and erasure
voltage
VCC = 2.7 to 5.5 V
Programming and erasure
endurance
10,000 times (data flash)
1,000 times (program ROM)
Operating Ambient Temperature -20 to 85°C (N version)
-40 to 85°C (D, J version)
(2)
, -40 to 125°C (K version)
(2)
20-pin molded-plastic LSSOPPackage