M37735MHL Datasheet, PDF (5/27 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

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MITSUBISHI MICROCOMPUTERS
M37735MHLXXXHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
BASIC FUNCTION BLOCKS
The M37735MHLXXXHP has the same functions as the
M37735MHBXXXFP except for the package and the reset circuit.
Refer to the section on the M37735MHBXXXFP.
RESET CIRCUIT
_____
The microcomputer is released from the reset state when the RESET
pin is returned to “H” level after holding it at “L” level with the power
source voltage at 2.7 – 5.5 V. Program execution starts at the address
formed by setting address A23 – A16 to 0016, A15 – A8 to the contents
of address FFFF16, and A7 – A0 to the contents of address FFFE16.
Figure 1 shows an example of a reset circuit. When the stabilized
clock is input from the external to the main-clock oscillation circuit,
the reset input voltage must be 0.55 V or less when the power source
voltage reaches 2.7 V. When a resonator/oscillator is connected to
the main-clock oscillation circuit, change the reset input voltage from
“L” to “H” after the main-clock oscillation is fully stabilized.
The status of the internal registers during reset is the same as the
M37735MHBXXXFP’s.
ADDRESSING MODES
The M37735MHLXXXHP has 28 powerful addressing modes. Refer
to the “7700 Family Software Manual” for the details.
MACHINE INSTRUCTION LIST
The M37735MHLXXXHP has 103 machine instructions. Refer to the
“7700 Family Software Manual” for the details.
DATA REQUIRED FOR MASK ROM ORDERING
Please send the following data for mask orders.
(1) M37735MHLXXXHP mask ROM order confirmation form
(2) 80P6D, 80P6Q mark specification form
(3) ROM data (EPROM 3 sets)
Power on
RESET
VCC
VCC
0V
2.7V
RESET
0V
0.55V
Note. In this case, stabilized clock is input from the
external to the main-clock oscillation circuit.
Perform careful evalvation at the system design
level before using.
Fig. 1 Example of a reset circuit
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