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PDF R5F21388ANXXXFP Data sheet ( Hoja de datos )
| Número de pieza | R5F21388ANXXXFP | |
| Descripción | MCU | |
| Fabricantes | Renesas | |
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Datasheet
R8C/38A Group
RENESAS MCU
REJ03B0274-0120
Rev.1.20
Jul 31, 2010
1. Overview
1.1 Features
The R8C/38A Group of single-chip MCUs incorporate the R8C CPU core, employing sophisticated instructions for
a high level of efficiency. With 1 Mbyte of address space, and it is capable of executing instructions at high speed.
In addition, the CPU core boasts 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, reduces the number of
system components.
The R8C/38A Group have data flash (1 KB × 4 blocks) with the background operation (BGO) function.
1.1.1 Applications
Electronic household appliances, office equipment, audio equipment, consumer equipment, etc.
REJ03B0274-0120 Rev.1.20
Jul 31, 2010
Page 1 of 57
1 page  
R8C/38A Group
1.3 Block Diagram
Figure 1.2 shows a Block Diagram.
1. Overview
8
8
8
8 51
8
I/O ports
Port P0
Port P1
Port P2
Port P3
Port P4
Port P5
Peripheral functions
Timers
Timer RA (8 bits × 1)
Timer RB (8 bits × 1)
Timer RC (16 bits × 1)
Timer RD (16 bits × 2)
Timer RE (8 bits × 1)
Timer RF (16 bits × 1)
Timer RG (16 bits × 1)
Watchdog timer
(14 bits)
A/D converter
(10 bits × 20 channels)
D/A converter
(8 bits × 2)
UART or
clock synchronous serial I/O
(8 bits × 3)
I2C bus or SSU
(8 bits × 1)
LIN module
Comparator B
System clock generation
circuit
XIN-XOUT
Low-speed on-chip oscillator
XCIN-XCOUT
Low-speed on-chip oscillator
for watchdog timer
Voltage detection circuit
Comparator A
DTC
R8C CPU core
R0H R0L
R1H R1L
R2
R3
A0
A1
FB
SB
USP
ISP
INTB
PC
FLG
Memory
ROM (1)
RAM (2)
Multiplier
Port P9
6
Port P8
8
Port P7
8
Port P6
8
Figure 1.2 Block Diagram
Notes:
1. ROM size varies with MCU type.
2. RAM size varies with MCU type.
REJ03B0274-0120 Rev.1.20
Jul 31, 2010
Page 5 of 57
5 Page 
R8C/38A Group
1. Overview
1.5 Pin Functions
Tables 1.7 and 1.8 list Pin Functions.
Table 1.7 Pin Functions (1)
Item
Pin Name
I/O Type
Description
Power supply input VCC, VSS
I Apply 1.8 to 5.5 V to the VCC pin.
Apply 0 V to the VSS pin.
Analog power
supply input
AVCC, AVSS
I Power supply for the A/D converter.
Connect a capacitor between AVCC and AVSS.
Reset input
RESET
I Input “L” on this pin resets the MCU.
MODE
MODE
I Connect this pin to VCC via a resistor.
XIN clock input XIN
XIN clock output XOUT
I These pins are provided for XIN clock generation circuit I/O.
I/O Connect a ceramic resonator or a crystal oscillator between
the XIN and XOUT pins. (1)
To use an external clock, input it to the XOUT pin and leave
the XIN pin open.
XCIN clock input XCIN
XCIN clock output XCOUT
I These pins are provided for XCIN clock generation circuit I/O.
O Connect a crystal oscillator between the XCIN and XCOUT
pins. (1)
To use an external clock, input it to the XCIN pin and leave
the XCOUT pin open.
INT interrupt input INT0 to INT4
I INT interrupt input pins.
Key input interrupt KI0 to KI3
I Key input interrupt input pins.
Timer RA
TRAIO
I/O Timer RA I/O pin.
TRAO
O Timer RA output pin.
Timer RB
TRBO
O Timer RB output pin.
Timer RC
TRCCLK
I External clock input pin.
TRCTRG
I External trigger input pin.
TRCIOA, TRCIOB,
TRCIOC, TRCIOD
I/O Timer RC I/O pins.
Timer RD
TRDIOA0, TRDIOA1,
TRDIOB0, TRDIOB1,
TRDIOC0, TRDIOC1,
TRDIOD0, TRDIOD1
I/O Timer RD I/O pins.
TRDCLK
I External clock input pin.
Timer RE
TREO
O Divided clock output pin.
Timer RF
TRFO00, TRFO10,
TRFO01,TRFO11,
TRFO02,TRFO12
O Timer RF output pins.
TRFI
I Timer RF input pin.
Timer RG
TRGIOA, TRGIOB
I/O Timer RG I/O ports.
TRGCLKA, TRGCLKB I External clock input pints.
Serial interface CLK0, CLK1, CLK2
I/O Transfer clock I/O pins.
RXD0, RXD1, RXD2
I Serial data input pins.
TXD0, TXD1, TXD2
O Serial data output pins.
CTS2
I Transmission control input pin.
RTS2
O Reception control output pin.
SCL2
I/O I2C mode clock I/O pin.
SDA2
I/O I2C mode data I/O pin.
I: Input
O: Output
I/O: Input and output
Note:
1. Refer to the oscillator manufacturer for oscillation characteristics.
REJ03B0274-0120 Rev.1.20
Jul 31, 2010
Page 11 of 57
11 Page | ||
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