To our customers,
Old Company Name in Catalogs and Other Documents
On April 1
st
, 2010, NEC Electronics Corporation merged with Renesas Technology
Corporation, and Renesas
Electronics Corporation
took over all the business of both
companies.
Therefore, although the old company name remains in this document, it is a valid
Renesas
Electronics document. We appreciate your understanding.
Renesas Electronics website:
http://www.renesas.com
April 1
st
, 2010
Renesas Electronics Corporation
Issued by:
Renesas Electronics Corporation
(http://www.renesas.com)
Send any inquiries to
http://www.renesas.com/inquiry.
Notice
1.
All information included in this document is current as of the date this document is issued. Such information, however, is
subject to change without any prior notice. Before purchasing or using any Renesas Electronics products listed herein, please
confirm the latest product information with a Renesas Electronics sales office. Also, please pay regular and careful attention to
additional and different information to be disclosed by Renesas Electronics such as that disclosed through our website.
Renesas Electronics does not assume any liability for infringement of patents, copyrights, or other intellectual property rights
of third parties by or arising from the use of Renesas Electronics products or technical information described in this document.
No license, express, implied or otherwise, is granted hereby under any patents, copyrights or other intellectual property rights
of Renesas Electronics or others.
You should not alter, modify, copy, or otherwise misappropriate any Renesas Electronics product, whether in whole or in part.
Descriptions of circuits, software and other related information in this document are provided only to illustrate the operation of
semiconductor products and application examples. You are fully responsible for the incorporation of these circuits, software,
and information in the design of your equipment. Renesas Electronics assumes no responsibility for any losses incurred by
you or third parties arising from the use of these circuits, software, or information.
When exporting the products or technology described in this document, you should comply with the applicable export control
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Renesas Electronics has used reasonable care in preparing the information included in this document, but Renesas Electronics
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incurred by you resulting from errors in or omissions from the information included herein.
Renesas Electronics products are classified according to the following three quality grades: “Standard”, “High Quality”, and
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expressly specified in a Renesas Electronics data sheets or data books, etc.
Computers; office equipment; communications equipment; test and measurement equipment; audio and visual
equipment; home electronic appliances; machine tools; personal electronic equipment; and industrial robots.
“High Quality”: Transportation equipment (automobiles, trains, ships, etc.); traffic control systems; anti-disaster systems; anti-
crime systems; safety equipment; and medical equipment not specifically designed for life support.
“Specific”:
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document or Renesas Electronics products, or if you have any other inquiries.
“Standard”:
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
(Note 1) “Renesas Electronics” as used in this document means Renesas Electronics Corporation and also includes its majority-
owned subsidiaries.
(Note 2) “Renesas Electronics product(s)” means any product developed or manufactured by or for Renesas Electronics.
R8C/24 Group, R8C/25 Group
SINGLE-CHIP 16-BIT CMOS MCU
REJ03B0117-0300
Rev.3.00
Feb 29, 2008
1.
Overview
These MCUs are fabricated using a high-performance silicon gate CMOS process, embedding the R8C/Tiny Series
CPU core, and are packaged in a 52-pin molded-plastic LQFP or a 64-pin molded-plastic FLGA. It implements
sophisticated instructions for a high level of instruction efficiency. With 1 Mbyte of address space, they are capable of
executing instructions at high speed.
Furthermore, the R8C/25 Group has on-chip data flash (1 KB x 2 blocks).
The difference between the R8C/24 Group and R8C/25 Group is only the presence or absence of data flash. Their
peripheral functions are the same.
1.1
Applications
Electronic household appliances, office equipment, audio equipment, consumer products, etc.
Rev.3.00 Feb 29, 2008
REJ03B0117-0300
Page 1 of 51
R8C/24 Group, R8C/25 Group
1. Overview
1.2
Performance Overview
Table 1.1 outlines the Functions and Specifications for R8C/24 Group and Table 1.2 outlines the Functions and
Specifications for R8C/25 Group.
Table 1.1
Functions and Specifications for R8C/24 Group
Item
Specification
CPU
Number of fundamental
89 instructions
instructions
Minimum instruction execution
50 ns (f(XIN) = 20 MHz, VCC = 3.0 to 5.5 V)
time
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)
Operating mode
Single-chip
Address space
1 Mbyte
Memory capacity
Refer to
Table 1.3 Product Information for R8C/24 Group
Peripheral
Ports
I/O ports: 41 pins, Input port: 3 pins
Functions
LED drive ports
I/O ports: 8 pins
Timers
Timer RA: 8 bits × 1 channel
Timer RB: 8 bits × 1 channel
(Each timer equipped with 8-bit prescaler)
Timer RD: 16 bits × 2 channels
(Input capture and output compare circuits)
Timer RE: With real-time clock and compare match function
Serial interfaces
2 channels (UART0, UART1)
Clock synchronous serial I/O, UART
Clock synchronous serial
1 channel
interface
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, 12 channels
Watchdog timer
15 bits × 1 channel (with prescaler)
Reset start selectable
Interrupts
Internal: 11 sources, External: 5 sources, Software: 4
sources, Priority levels: 7 levels
Clock
Clock generation 3 circuits
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)
Real-time clock (timer RE)
Oscillation stop detection function XIN clock oscillation stop detection function
Voltage detection circuit
On-chip
Power-on reset circuit
On-chip
Electrical
Supply voltage
VCC = 3.0 to 5.5 V (f(XIN) = 20 MHz)
Characteristics
VCC = 2.7 to 5.5 V (f(XIN) = 10 MHz)
VCC = 2.2 to 5.5 V (f(XIN) = 5 MHz)
Current consumption
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 100 times
Operating Ambient Temperature
-20 to 85°C (N version)
-40 to 85°C (D version)
(2)
-20 to 105°C (Y version)
(3)
Package
52-pin molded-plastic LQFP
64-pin molded-plastic FLGA
NOTES:
1. I
2
C bus is a trademark of Koninklijke Philips Electronics N. V.
2. Specify the D version if D version functions are to be used.
3. Please contact Renesas Technology sales offices for the Y version.
Rev.3.00 Feb 29, 2008
REJ03B0117-0300
Page 2 of 51
R8C/24 Group, R8C/25 Group
1. Overview
Table 1.2
Functions and Specifications for R8C/25 Group
Item
Specification
CPU
Number of fundamental
89 instructions
instructions
Minimum instruction execution 50 ns (f(XIN) = 20 MHz, VCC = 3.0 to 5.5 V)
time
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)
Operating mode
Single-chip
Address space
1 Mbyte
Memory capacity
Refer to
Table 1.4 Product Information for R8C/25 Group
Peripheral
Ports
I/O ports: 41 pins, Input port: 3 pins
Functions
LED drive ports
I/O ports: 8 pins
Timers
Timer RA: 8 bits × 1 channel
Timer RB: 8 bits × 1 channel
(Each timer equipped with 8-bit prescaler)
Timer RD: 16 bits × 2 channels
(Input capture and output compare circuits)
Timer RE: With real-time clock and compare match function
Serial interface
2 channels (UART0, UART1)
Clock synchronous serial I/O, UART
Clock synchronous serial
1 channel
interface
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, 12 channels
Watchdog timer
15 bits × 1 channel (with prescaler)
Reset start selectable
Interrupts
Internal: 11 sources, External: 5 sources, Software: 4
sources, Priority levels: 7 levels
Clock
Clock generation 3 circuits
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)
Real-time clock (timer RE)
Oscillation stop detection function XIN clock oscillation stop detection function
Voltage detection circuit
On-chip
Power-on reset circuit
On-chip
Electrical
Supply voltage
VCC = 3.0 to 5.5 V (f(XIN) = 20 MHz)
Characteristics
VCC = 2.7 to 5.5 V (f(XIN) = 10 MHz)
VCC = 2.2 to 5.5 V (f(XIN) = 5 MHz)
Current consumption
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
1,0000 times (data flash)
endurance
1,000 times (program ROM)
Operating Ambient Temperature
-20 to 85°C (N version)
-40 to 85°C (D version)
(2)
-20 to 105°C (Y version)
(3)
Package
52-pin molded-plastic LQFP
64-pin molded-plastic FLGA
NOTES:
1. I
2
C bus is a trademark of Koninklijke Philips Electronics N. V.
2. Specify the D version if D version functions are to be used.
3. Please contact Renesas Technology sales offices for the Y version.
Rev.3.00 Feb 29, 2008
REJ03B0117-0300
Page 3 of 51
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