Datasheet

R01DS0011EJ0101 Rev.1.01 Page 2 of 102
Oct 28, 2011
R8C/LA3A Group, R8C/LA5A Group, R8C/LA6A Group, R8C/LA8A Group 1. Overview
1.1.2 Differences between Groups
Table 1.1 lists the Differences between Groups, Tables 1.2 and 1.3 list the Programmable I/O Ports Provided for
Each Group, and Tables 1.4 and 1.5 list the LCD Display Function Pins Provided for Each Group.
Figures 1.9 to 1.12 show the pin assignment for each group, and Tables 1.9 to 1.12 list product information.
The explanations in the chapters which follow apply to the R8C/LA8A Group only. Note the differences shown
below.
Note:
1. I/O ports are shared with I/O functions, such as interrupts or timers.
Refer to Tables 1.13 to 1.17, Pin Name Information by Pin Number, for details.
Table 1.1 Differences between Groups
Item Function R8C/LA3A Group R8C/LA5A Group R8C/LA6A Group R8C/LA8A Group
I/O Ports Programmable I/O ports 26 pins 44 pins 56 pins 72 pins
High current drive ports 8 pins 8 pins 8 pins 10 pins
Interrupts
INT
interrupt pins
5 pins 6 pins 8 pins 8 pins
Timer RJ
Timer RJ0 output pin None None None 1 pin
Timer RJ1 output pin None None None 1 pin
Timer RJ2 I/O pin None None None 1 pin
Timer RJ2 output pin None None None 1 pin
Timer RH
Timer RH output pin None 1 pin 1 pin 1 pin
Serial interface UART2 None None 1 pin 1 pin
A/D Converter Analog input pins 5 pins 7 pins 8 pins 12 pins
LCD Drive
Control Circuit
Segment output pins Max. 11 pins Max. 27 pins Max. 32 pins Max. 40 pins
Comparator B Analog input voltage 1 pin 2 pins 2 pins 2 pins
Reference input voltage 1 pin 2 pins 2 pins 2 pins
Clock XCIN pin Shared with
XIN pin
Dedicated pin Dedicated pin Dedicated pin
XCOUT pin Shared with
XOUT pin
Dedicated pin Dedicated pin Dedicated pin
Packages 32-pin LQFP 52-pin LQFP 64-pin LQFP 80-pin LQFP