
1. Overview
REJ03B0243-0030 Rev.0.30
Jan 21, 2009
R8C/L35A Group, R8C/L36A Group, R8C/L38A Group, R8C/L3AA Group,
R8C/L35B Group, R8C/L36B Group, R8C/L38B Group, R8C/L3AB Group
Under development Preliminary specification
Specifications in this manual are tentative and subject to change.
1.1.3
Specifications
Tables
1.5 to
1.7 list the specifications.
Table 1.5
Specifications (1)
Item
Function
Specification
CPU
Central processing unit
R8C CPU core
Number of fundamental instructions: 89
Minimum instruction execution time:
50 ns (f(XIN) = 20 MHz, VCC = 2.7 to 5.5 V)
200 ns (f(XIN) = 5 MHz, VCC = 1.8 to 5.5 V)
Multiplier: 16 bits × 16 bits
→ 32 bits
Multiply-accumulate instruction: 16 bits × 16 bits + 32 bits
→ 32 bits
Operating mode: Single-chip mode (address space: 1 Mbyte)
Memory
ROM/RAM
Data flash
Refer to Tables
1.8 to
1.15 Product Lists.
Power
Supply
Voltage
Detection
Voltage detection circuit
Power-on reset
Voltage detection 3 (detection level of voltage detection 0 and voltage
detection 1 selectable)
I/O Ports
Programmable
I/O ports
R8C/L35A Group
R8C/L35B Group
CMOS I/O ports: 41, selectable pull-up resistor
High current drive ports: 5
R8C/L36A Group
R8C/L36B Group
CMOS I/O ports: 52, selectable pull-up resistor
High current drive ports: 8
R8C/L38A Group
R8C/L38B Group
CMOS I/O ports: 68, selectable pull-up resistor
High current drive ports: 8
R8C/L3AA Group
R8C/L3AB Group
CMOS I/O ports: 88, selectable pull-up resistor
High current drive ports: 16
Clock
Clock generation circuits
4 circuits: XIN clock oscillation circuit
XCIN clock oscillation circuit (32 kHz)
High-speed on-chip oscillator (with frequency adjustment function)
Low-speed on-chip oscillator
Oscillation stop detection:
XIN clock oscillation stop detection function
Frequency divider circuit:
Division ratio selectable from 1, 2, 4, 8, and 16
Low-power-consumption modes:
Standard operating mode (high-speed clock, low-speed clock, high-
speed on-chip oscillator, low-speed on-chip oscillator), wait mode,
stop mode, power-off mode
Real-time clock (timer RE)
Interrupts
R8C/L35A Group
R8C/L35B Group
Number of interrupt vectors: 69
External Interrupt: 9 (INT × 5, key input × 4)
Priority levels: 7 levels
R8C/L36A Group
R8C/L36B Group
Number of interrupt vectors: 69
External Interrupt: 12 (INT × 8, key input × 4)
Priority levels: 7 levels
R8C/L38A Group
R8C/L38B Group
Number of interrupt vectors: 69
External Interrupt: 16 (INT × 8, key input × 8)
Priority levels: 7 levels
R8C/L3AA Group
R8C/L3AB Group
Number of interrupt vectors: 69
External Interrupt: 16 (INT × 8, key input × 8)
Priority levels: 7 levels
Watchdog Timer
14 bits × 1 (with prescaler)
Selectable reset start function
Selectable low-speed on-chip oscillator for watchdog timer
DTC (Data Transfer Controller)
1 channel
Activation sources: 38
Transfer modes: 2 (normal mode, repeat mode)