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
laws and regulations and follow the procedures required by such laws and regulations. You should not use Renesas
Electronics products or the technology described in this document for any purpose relating to military applications or use by
the military, including but not limited to the development of weapons of mass destruction. Renesas Electronics products and
technology may not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited
under any applicable domestic or foreign laws or regulations.
Renesas Electronics has used reasonable care in preparing the information included in this document, but Renesas Electronics
does not warrant that such information is error free. Renesas Electronics assumes no liability whatsoever for any damages
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
“Specific”. The recommended applications for each Renesas Electronics product depends on the product’s quality grade, as
indicated below. You must check the quality grade of each Renesas Electronics product before using it in a particular
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consent of Renesas Electronics. The quality grade of each Renesas Electronics product is “Standard” unless otherwise
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”:
Aircraft; aerospace equipment; submersible repeaters; nuclear reactor control systems; medical equipment or
systems for life support (e.g. artificial life support devices or systems), surgical implantations, or healthcare
intervention (e.g. excision, etc.), and any other applications or purposes that pose a direct threat to human life.
You should use the Renesas Electronics products described in this document within the range specified by Renesas Electronics,
especially with respect to the maximum rating, operating supply voltage range, movement power voltage range, heat radiation
characteristics, installation and other product characteristics. Renesas Electronics shall have no liability for malfunctions or
damages arising out of the use of Renesas Electronics products beyond such specified ranges.
Although Renesas Electronics endeavors to improve the quality and reliability of its products, semiconductor products have
specific characteristics such as the occurrence of failure at a certain rate and malfunctions under certain use conditions. Further,
Renesas Electronics products are not subject to radiation resistance design. Please be sure to implement safety measures to
guard them against the possibility of physical injury, and injury or damage caused by fire in the event of the failure of a
Renesas Electronics product, such as safety design for hardware and software including but not limited to redundancy, fire
control and malfunction prevention, appropriate treatment for aging degradation or any other appropriate measures. Because
the evaluation of microcomputer software alone is very difficult, please evaluate the safety of the final products or system
manufactured by you.
Please contact a Renesas Electronics sales office for details as to environmental matters such as the environmental
compatibility of each Renesas Electronics product. Please use Renesas Electronics products in compliance with all applicable
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This document may not be reproduced or duplicated, in any form, in whole or in part, without prior written consent of Renesas
Electronics.
Please contact a Renesas Electronics sales office if you have any questions regarding the information contained in this
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.
½This
data sheet describes Spec. H and Spec. A of 3850 Group. The header of each page shows which specification is explained in
the page. The page explaining about both specifications shows the header of “Spec. H/A”.
3850 Group (Spec.H/A)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
3850 Group (Spec.H)
REJ03B0036-0301Z
Rev.3.01
2003.06.20
DESCRIPTION
The 3850 group (spec. H) is the 8-bit microcomputer based on the
740 family core technology.
The 3850 group (spec. H) is designed for the household products
and office automation equipment and includes serial I/O functions,
8-bit timer, and A-D converter.
FEATURES
qBasic
machine-language instructions ...................................... 71
qMinimum
instruction execution time .................................. 0.5
µs
(at 8 MHz oscillation frequency)
qMemory
size
ROM ................................................................... 8K to 32K bytes
RAM ................................................................. 512 to 1024 bytes
qProgrammable
input/output ports ............................................ 34
qInterrupts
................................................. 15 sources, 14 vectors
qTimers
............................................................................. 8-bit
✕
4
qSerial
I/O1 .................... 8-bit
✕
1(UART or Clock-synchronized)
qSerial
I/O2 ................................... 8-bit
✕
1(Clock-synchronized)
qPWM
............................................................................... 8-bit
✕
1
qA-D
converter ............................................... 10-bit
✕
5 channels
qWatchdog
timer ............................................................ 16-bit
✕
1
qClock
generating circuit ..................................... Built-in 2 circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
qPower
source voltage
In high-speed mode .................................................. 4.0 to 5.5 V
(at 8 MHz oscillation frequency)
In middle-speed mode ............................................... 2.7 to 5.5 V
(at 8 MHz oscillation frequency)
In low-speed mode .................................................... 2.7 to 5.5 V
(at 32 kHz oscillation frequency)
qPower
dissipation
In high-speed mode .......................................................... 34 mW
(at 8 MHz oscillation frequency, at 5 V power source voltage)
In low-speed mode
Except M38507F8FP/SP ................................................... 60
µW
M38507F8FP/SP ............................................................. 450
µW
(at 32 kHz oscillation frequency, at 3 V power source voltage)
qOperating
temperature range .................................... –20 to 85°C
APPLICATION
Office automation equipment, FA equipment, Household products,
Consumer electronics, etc.
PIN CONFIGURATION (TOP VIEW)
V
CC
V
REF
AV
SS
P4
4
/INT
3
/PWM
P4
3
/INT
2
/S
CMP2
P4
2
/INT
1
P4
1
/INT
0
P4
0
/CNTR
1
P2
7
/CNTR
0
/S
RDY1
P2
6
/S
CLK1
P2
5
/TxD
P2
4
/RxD
P2
3
P2
2
CNV
SS
V
PP
P2
1
/X
CIN
P2
0
/X
COUT
RESET
X
IN
X
OUT
V
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
P3
0
/AN
0
P3
1
/AN
1
P3
2
/AN
2
P3
3
/AN
3
P3
4
/AN
4
P0
0
/S
IN2
P0
1
/S
OUT2
P0
2
/S
CLK2
P0
3
/S
RDY2
P0
4
P0
5
P0
6
P0
7
P1
0
/(LED
0
)
P1
1
/(LED
1
)
P1
2
/(LED
2
)
P1
3
/(LED
3
)
P1
4
/(LED
4
)
P1
5
/(LED
5
)
P1
6
/(LED
6
)
P1
7
/(LED
7
)
Package type : FP ........................... 42P2R-A/E (42-pin plastic-molded SSOP)
Package type : SP ........................... 42P4B (42-pin plastic-molded SDIP)
Fig. 1 M38503MXH-XXXFP/SP pin configuration (spec. H)
M38503MXH-XXXFP/SP
: Flash memory version
Rev.3.01
2003.06.20
page 1 of 98
1
3850 Group (Spec.A)
DESCRIPTION
The 3850 group (spec. A) is the 8-bit microcomputer based on the
740 family core technology.
The 3850 group (spec. A) is designed for the household products
and office automation equipment and includes serial I/O functions,
8-bit timer, and A-D converter.
FEATURES
qBasic
machine-language instructions ...................................... 71
qMinimum
instruction execution time ................................ 0.32
µs
(at 12.5 MHz oscillation frequency)
qMemory
size
ROM ................................................................... 8K to 16K bytes
RAM .............................................................................. 512 bytes
qProgrammable
input/output ports ............................................ 34
qOn-chip
software pull-up resistor
qInterrupts
................................................. 15 sources, 14 vectors
qTimers
............................................................................. 8-bit
✕
4
qSerial
I/O1 .................... 8-bit
✕
1(UART or Clock-synchronized)
qSerial
I/O2 ................................... 8-bit
✕
1(Clock-synchronized)
qPWM
............................................................................... 8-bit
✕
1
qA-D
converter ............................................... 10-bit
✕
9 channels
qWatchdog
timer ............................................................ 16-bit
✕
1
qClock
generating circuit ..................................... Built-in 2 circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
qPower
source voltage
In high-speed mode .................................................. 4.0 to 5.5 V
(at 12.5 MHz oscillation frequency)
In high-speed mode .................................................. 2.7 to 5.5 V
(at 6 MHz oscillation frequency)
In middle-speed mode ............................................... 2.7 to 5.5 V
(at 12.5 MHz oscillation frequency)
In low-speed mode .................................................... 2.7 to 5.5 V
(at 32 kHz oscillation frequency)
qPower
dissipation
In high-speed mode
Except M38507F8FP/SP ................................................ 32.5mW
M38507F8FP/SP ............................................................ 37.5mW
(at 12.5 MHz oscillation frequency, at 5 V power source voltage)
In low-speed mode
Except M38507F8FP/SP ................................................... 60
µW
M38507F8FP/SP ............................................................. 450
µW
(at 32 kHz oscillation frequency, at 3 V power source voltage)
qOperating
temperature range .................................... –20 to 85°C
APPLICATION
Office automation equipment, FA equipment, Household products,
Consumer electronics, etc.
PIN CONFIGURATION (TOP VIEW)
V
CC
V
REF
AV
SS
P4
4
/INT
3
/PWM
P4
3
/INT
2
/S
CMP2
P4
2
/INT
1
P4
1
/INT
0
P4
0
/CNTR
1
P2
7
/CNTR
0
/S
RDY1
P2
6
/S
CLK1
P2
5
/TxD
P2
4
/RxD
P2
3
P2
2
CNV
SS
V
PP
P2
1
/X
CIN
P2
0
/X
COUT
RESET
X
IN
X
OUT
V
SS
P3
0
/AN
0
P3
1
/AN
1
P3
2
/AN
2
P3
3
/AN
3
P3
4
/AN
4
P0
0
/S
IN2
P0
1
/S
OUT2
P0
2
/S
CLK2
P0
3
/S
RDY2
P0
4
/AN
5
P0
5
/AN
6
P0
6
/AN
7
P0
7
/AN
8
P1
0
/(LED
0
)
P1
1
/(LED
1
)
P1
2
/(LED
2
)
P1
3
/(LED
3
)
P1
4
/(LED
4
)
P1
5
/(LED
5
)
P1
6
/(LED
6
)
P1
7
/(LED
7
)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
Package type : FP ........................... 42P2R-A/E (42-pin plastic-molded SSOP)
Package type : SP ........................... 42P4B (42-pin plastic-molded SDIP)
Fig. 2 M38503MXA-XXXFP/SP pin configuration (spec. A)
M38503MXA-XXXFP/SP
: Flash memory version
Rev.3.01
2003.06.20
page 2 of 98
FUNCTIONAL BLOCK
Rev.3.01
Reset input
V
S S
V
C C
RESET
18
15
1
21
FUNCTIONAL BLOCK DIAGRAM
3850 Group (Spec.H)
Fig. 3 Functional block diagram (spec. H)
CNV
SS
2003.06.20
C P U
Main-clock
input
X
IN
Main-clock
output
X
OUT
19
20
page 3 of 98
ROM
X
Prescaler 12(8)
Sub-clock Sub-clock
input
output
X
CIN
X
COUT
Clock generating circuit
A
Timer 1( 8 )
Timer 2( 8 )
Timer X( 8 )
Timer Y( 8 )
RAM
Y
Prescaler X(8)
S
PC
H
PS
CNTR
1
PC
L
CNTR
0
Prescaler Y(8)
Watchdog
timer
Reset
A-D
converter
(10)
P WM
(8)
SI/O1(8)
SI/O2(8)
X
COUT
INT
0
–
INT
3
X
CIN
P4(5)
P3(5)
P2(8)
P1(8)
P0(8)
2 3
38 39 40 41 42
4 5 6 7 8
9 10 11 12 13 1416 17
22 23 24 25 26 27 28 29
30 31 32 33 34 35 36 37
I/O port P4
I/O port P3
I/O port P2
I/O port P1
I/O port P0
V
REF
AV
SS
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