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Renesas |
Datasheet
R8C/LA3A Group, R8C/LA5A Group, R8C/LA6A Group, R8C/LA8A Group
RENESAS MCU
R01DS0011EJ0100
Rev.1.00
Dec 21, 2010
1. Overview
1.1 Features
The R8C/LA3A Group, R8C/LA5A Group, R8C/LA6A Group, and R8C/LA8A Group of single-chip MCUs
incorporate the R8C CPU core, which implements a powerful instruction set for a high level of efficiency and
supports a 1 Mbyte address space, allowing execution of instructions at high speed. In addition, the CPU core
integrates a multiplier for high-speed operation processing.
Power consumption is low, and the supported operating modes allow additional power control. These MCUs are
designed to maximize EMI/EMS performance.
Integration of many peripheral functions, including multifunction timer and serial interface, helps reduce the
number of system components.
The R8C/LA3A Group, R8C/LA5A Group, R8C/LA6A Group, and R8C/LA8A Group have data flash (1 KB × 2
blocks).
1.1.1 Applications
Household appliances, office equipment, audio equipment, consumer products, etc.
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R01DS0011EJ0100 Rev.1.00
Dec 21, 2010
Page 1 of 102
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.
Table 1.1 Differences between Groups
Item
I/O Ports
Interrupts
Timer RJ
Timer RH
Serial interface
A/D Converter
LCD Drive
Control Circuit
Comparator B
Clock
Packages
Function
Programmable I/O ports
High current drive ports
INT interrupt pins
Timer RJ0 output pin
Timer RJ1 output pin
Timer RJ2 I/O pin
Timer RJ2 output pin
Timer RH output pin
UART2
Analog input pins
Segment output pins
R8C/LA3A Group
26 pins
8 pins
5 pins
None
None
None
None
None
None
5 pins
Max. 11 pins
Analog input voltage
Reference input voltage
XCIN pin
XCOUT pin
1 pin
1 pin
Shared with
XIN pin
Shared with
XOUT pin
32-pin LQFP
R8C/LA5A Group
44 pins
8 pins
6 pins
None
None
None
None
1 pin
None
7 pins
Max. 27 pins
2 pins
2 pins
Dedicated pin
Dedicated pin
52-pin LQFP
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.
R8C/LA6A Group
56 pins
8 pins
8 pins
None
None
None
None
1 pin
1 pin
8 pins
Max. 32 pins
2 pins
2 pins
Dedicated pin
Dedicated pin
64-pin LQFP
R8C/LA8A Group
72 pins
10 pins
8 pins
1 pin
1 pin
1 pin
1 pin
1 pin
1 pin
12 pins
Max. 40 pins
2 pins
2 pins
Dedicated pin
Dedicated pin
80-pin LQFP
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R01DS0011EJ0100 Rev.1.00
Dec 21, 2010
Page 2 of 102
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