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
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1.
All information included in this document is current as of the date this document is issued. Such information, however, is
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“Standard”:
2.
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7.
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(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.
M32C/85 Group (M32C/85, M32C/85T)
SINGLE-CHIP 16/32-BIT CMOS MICROCOMPUTER
REJ03B0046-0121
Rev.1.21
Jul. 01, 2005
1. Overview
The M32C/85 group (M32C/85, M32C/85T) microcomputer is a single-chip control unit that utilizes high-
performance silicon gate CMOS technology with the M32C/80 series CPU core. The M32C/85 group
(M32C/85, M32C/85T) is available in 144-pin and 100-pin plastic molded LQFP/QFP packages.
With a 16-Mbyte address space, this microcomputer combines advanced instruction manipulation capabili-
ties to process complex instructions by less bytes and execute instructions at higher speed.
It includes a multiplier and DMAC adequate for office automation, communication devices and industrial
equipments, and other high-speed processing applications.
1.1 Applications
Automobiles, audio, cameras, office equipment, communications equipment, portable equipment, etc.
Rev. 1.21 Jul. 01, 2005
Page 1
of 87
M32C/85 Group (M32C/85, M32C/85T)
1. Overview
1.2 Performance Overview
Tables 1.1 and 1.2 list performance overview of the M32C/85 group (M32C/85, M32C/85T).
Table 1.1 M32C/85 Group (M32C/85, M32C/85T) Performance (144-Pin Package)
Characteristic
Performance
M32C/85
M32C/85T
CPU
Basic Instructions
108 instructions
Minimum Instruction Execution Time 31.3 ns
31.3 ns
(f(BCLK)=32 MHz, V
CC1
=4.2 V to 5.5 V) (f(BCLK)=32 MHz, V
CC1
=4.2 V to 5.5 V)
41.7 ns
(f(BCLK)=24 MHz, V
CC1
=3.0 V to 5.5 V)
Operating Mode
Single-chip mode, Memory expansion Single-chip mode
mode and Microprocessor mode
Address Space
16 Mbytes
Memory Capacity
See Table 1.3
Peripheral I/O Port
123 I/O pins and 1 input pin
Function Multifunction Timer
Timer A: 16 bits x 5 channels, Timer B: 16 bits x 6 channels
Three-phase motor control circuit
Intelligent I/O
Time measurement function or Waveform generating function:
16 bits x 8 channels
Communication function (Clock synchronous serial I/O, Clock asyn-
chronous serial I/O, HDLC data processing)
Serial I/O
5 Channels
Clock synchronous serial I/O, Clock asynchronous serial I/O,
IEBus
(1)
, I
2
C bus
(2)
CAN Module
2 channels Supporting CAN 2.0B specification
A/D Converter
10-bit A/D converter: 1 circuit, 34 channels
D/A Converter
8 bits x 2 channels
DMAC
4 channels
DMAC II
Can be activated by all peripheral function interrupt sources
Immediate transfer, Calculation transfer and Chain transfer functions
CRC Calculation Circuit
CRC-CCITT
X/Y Converter
16 bits x 16 bits
Watchdog Timer
15 bits x 1 channel (with prescaler)
Interrupt
39 internal and 8 external sources, 5 software sources
Interrupt priority level: 7
Clock Generation Circuit
4 circuits
Main clock oscillation circuit(*), Sub clock oscillation circuit(*), On-chip
oscillator, PLL frequency synthesizer
(*)Equipped with a built-in feedback resistor. Ceramic resonator or
crystal oscillator must be connected externally
Oscillation Stop Detect Function
Main clock oscillation stop detect function
Voltage Detection Circuit
Available (optional)
Not available
(4)
Electrical Supply Voltage
V
CC1
=4.2 V to 5.5 V, V
CC2
=3.0 V to V
CC1
V
CC1
=V
CC2
=4.2 V to 5.5 V,
Charact-
(f(BCLK)=32 MHz)
(f(BCLK)=32 MHz)
(3)
eristics
V
CC1
=3.0 V to 5.5 V, V
CC2
=3.0 V to V
CC1
(f(BCLK)=24 MHz)
28 mA (V
CC1
=V
CC2
=5 V,
Power Consumption
28 mA (V
CC1
=V
CC2
=5 V,
f(BCLK)=32 MHz)
f(BCLK)=32 MHz)
22 mA (V
CC1
=V
CC2
=3.3 V,
10µA (V
CC1
=V
CC2
=5 V,
f(BCLK)=24 MHz)
f(BCLK)=32 kHz, in wait mode)
10µA (V
CC1
=V
CC2
=5 V,
f(BCLK)=32 kHz, in wait mode)
Flash
Program/Erase Supply Voltage
3.3 V
±
0.3 V or 5.0 V
±
0.5 V
5.0 V
±
0.5 V
Memory Program and Erase Endurance
100 times (all space)
–40 to 85
o
C (T version)
Operating Ambient Temperature
–20 to 85
o
C
–40 to 85
o
C (optional)
Package
144-pin plastic molded LQFP
NOTES:
1. IEBus is a trademark of NEC Electronics Corporation.
2. I
2
C bus is a trademark of Koninklijke Philips Electronics N. V.
3. The supply voltage of M32C/85T (High-reliability version) must be V
CC1
=V
CC2
.
4. The cold start-up/warm start-up determine function is available only at the user's option.
All options are on a request basis.
Rev. 1.21 Jul. 01, 2005
Page 2 of 87
M32C/85 Group (M32C/85, M32C/85T)
1. Overview
Table 1.2 M32C/85 Group (M32C/85, M32C/85T) Performance (100-Pin Package)
Characteristic
Performance
M32C/85
M32C/85T
CPU
Basic Instructions
108 instructions
Minimum Instruction Execution Time 31.3 ns
31.3 ns
(f(BCLK)=32 MHz, V
CC1
=4.2 V to 5.5 V) (f(BCLK)=32 MHz, V
CC1
=4.2 V to 5.5 V)
41.7 ns
(f(BCLK)=24 MHz, V
CC1
=3.0 V to 5.5 V)
Operating Mode
Single-chip mode, Memory expansion Single-chip mode
mode and Microprocessor mode
Address Space
16 Mbytes
Memory Capacity
See Table 1.3
Peripheral I/O Port
87 I/O pins and 1 input pin
Function Multifunction Timer
Timer A: 16 bits x 5 channels, Timer B: 16 bits x 6 channels
Three-phase motor control circuit
Intelligent I/O
Time measurement function or Waveform generating function:
16 bits x 8 channels
Communication function (Clock synchronous serial I/O, Clock asyn-
chronous serial I/O, HDLC data processing)
Serial I/O
5 Channels
Clock synchronous serial I/O, Clock asynchronous serial I/O,
IEBus
(1)
, I
2
C bus
(2)
CAN Module
2 channels Supporting CAN 2.0B specification
A/D Converter
10-bit A/D converter: 1 circuit, 26 channels
D/A Converter
8 bits x 2 channels
DMAC
4 channels
DMAC II
Can be activated by all peripheral function interrupt sources
Immediate transfer, Calculation transfer and Chain transfer functions
CRC Calculation Circuit
CRC-CCITT
X/Y Converter
16 bits x 16 bits
Watchdog Timer
15 bits x 1 channel (with prescaler)
Interrupt
39 internal and 8 external sources, 5 software sources
Interrupt priority level: 7
Clock Generation Circuit
4 circuits
Main clock oscillation circuit(*), Sub clock oscillation circuit(*), On-chip
oscillator, PLL frequency synthesizer
(*)Equipped with a built-in feedback resistor. Ceramic resonator or
crystal oscillator must be connected externally
Oscillation Stop Detect Function
Main clock oscillation stop detect function
Voltage Detection Circuit
Available (optional)
Not available
(4)
Electrical Supply Voltage
V
CC1
=4.2 V to 5.5 V, V
CC2
=3.0 V to V
CC1
V
CC1
=V
CC2
=4.2 V to 5.5 V,
Charact-
(f(BCLK)=32 MHz)
(f(BCLK)=32 MHz)
(3)
eristics
V
CC1
=3.0 V to 5.5 V, V
CC2
=3.0 V to V
CC1
(f(BCLK)=24 MHz)
28 mA (V
CC1
=V
CC2
=5 V,
Power Consumption
28 mA (V
CC1
=V
CC2
=5 V,
f(BCLK)=32 MHz)
f(BCLK)=32 MHz)
22 mA (V
CC1
=V
CC2
=3.3 V,
10µA (V
CC1
=V
CC2
=5 V,
f(BCLK)=24 MHz)
f(BCLK)=32 kHz, in wait mode)
10µA (V
CC1
=V
CC2
=5 V,
f(BCLK)=32 kHz, in wait mode)
Flash
Program/Erase Supply Voltage
3.3 V
±
0.3 V or 5.0 V
±
0.5 V
5.0 V
±
0.5 V
Memory Program and Erase Endurance
100 times (all space)
Operating Ambient Temperature
–20 to 85
o
C
–40 to 85
o
C (T version)
–40 to 85
o
C (optional)
Package
100-pin plastic molded LQFP/QFP
NOTES:
1. IEBus is a trademark of NEC Electronics Corporation.
2. I
2
C bus is a trademark of Koninklijke Philips Electronics N. V.
3. The supply voltage of M32C/85T (High-reliability version) must be V
CC1
=V
CC2
.
4. The cold start-up/warm start-up determine function is available only at the user's option.
All options are on a request basis.
Rev. 1.21 Jul. 01, 2005
Page 3 of 87
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