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M37540M4-XXXSP fiches techniques PDF

Renesas - SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

Numéro de référence M37540M4-XXXSP
Description SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Fabricant Renesas 
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M37540M4-XXXSP fiche technique
7540 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
REJ03B0011-0400
Rev.4.00
Jun 21, 2004
DESCRIPTION
The 7540 Group is the 8-bit microcomputer based on the 740 fam-
ily core technology.
The 7540 Group has a serial I/O, 8-bit timers, a 16-bit timer, and
an A/D converter, and is useful for control of home electric appli-
ances and office automation equipment.
FEATURES
Basic machine-language instructions ...................................... 71
The minimum instruction execution time ......................... 0.34 µs
(at 6 MHz oscillation frequency, double-speed mode for the
shortest instruction)
Memory size ROM ............................................ 8 K to 32 K bytes
RAM ............................................. 384 to 768 bytes
Programmable I/O ports ....................... 29 (25 in 32-pin version)
Interrupts ................................................. 15 sources, 15 vectors
................................. (14 sources, 14 vectors for 32-pin version)
Timers ............................................................................. 8-bit 4
...................................................................................... 16-bit 1
Serial I/O1 ................... 8-bit 1 (UART or Clock-synchronized)
Serial I/O2 (Note 1) ..................... 8-bit 1 (Clock-synchronized)
A/D converter ............................................... 10-bit 8 channels
.................................................... (6 channels for 32-pin version)
Clock generating circuit ............................................. Built-in type
(low-power dissipation by an on-chip oscillator enabled)
(connect to external ceramic resonator or quartz-crystal oscilla-
tor permitting RC oscillation)
Watchdog timer ............................................................ 16-bit 1
Power source voltage
XIN oscillation frequency at ceramic oscillation, in double-speed mode
At 6 MHz .................................................................... 4.5 to 5.5 V
XIN oscillation frequency at ceramic oscillation, in high-speed mode
At 8 MHz .................................................................... 4.0 to 5.5 V
At 4 MHz .................................................................... 2.4 to 5.5 V
At 2 MHz .................................................................... 2.2 to 5.5 V
XIN oscillation frequency at RC oscillation in high-speed mode or
middle-speed mode
At 4 MHz .................................................................... 4.0 to 5.5 V
At 2 MHz .................................................................... 2.4 to 5.5 V
At 1 MHz .................................................................... 2.2 to 5.5 V
Power dissipation
Mask ROM version ....................................... 22.5 mW (standard)
One Time PROM version ................................ 30 mW (standard)
Operating temperature range ................................... –20 to 85 °C
(–40 to 85 °C for extended operating temperature version)
(–40 to 125 °C for extended operating temperature 125 °C ver-
sion (Note 2))
APPLICATION
Office automation equipment, factory automation equipment,
home electric appliances, consumer electronics, car, etc.
Notes 1: Serial I/O2 can be used in the following cases;
(1) Serial I/O1 is not used,
(2) Serial I/O1 is used as UART and BRG output divided by 16 is
selected as the synchronized clock.
2: In this version, the operating temperature range and total time
are limited as follows;
55 °C to 85 °C: within total 6000 hours,
85 °C to 125 °C: within total 1000 hours.
Rev.4.00 Jun 21, 2004 page 1 of 82
REJ03B0011-0400Z

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