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LC651432N Fiches technique(PDF) 7 Page - Sanyo Semicon Device

No de pièce LC651432N
Description  Four-Bit CMOS Microcontrollers for Small-Scale Control Applications
Download  39 Pages
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Fabricant  SANYO [Sanyo Semicon Device]
Site Internet  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LC651432N Fiches technique(HTML) 7 Page - Sanyo Semicon Device

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Development Support
The following are available to support the development of LC651431 and LC651432 applications.
• User’s manual
“LC6543/46 User’s Manual” No. E71
• Development tool manual
See the “EVA86000 Development Tool Manual for 4-Bit Microcontrollers.”
• Software manual
“LC65/66 Series Software Manual”
• Development tools
Program development: EVA86000 System
Program evaluation: LC65E43 on-chip EPROM microcontroller
No. 6498-7/39
LC651432N/F/L, 651431N/F/L
Pins Functions
Count
Pin
I/O
Function
Options
Reset state
Handling when
unused
1VDD
Power supply
1VSS
1
OSC1
Input
• Connection for the external system clock
1. Single-pin external clock input
RC or ceramic oscillator element
2. 2-pin RC oscillator
• When a single pin is used for external clock
3. 2-pin ceramic oscillator
input, the PI0/OSC2 pin is used as the PI0
4. Divider circuit option
I/O port.
• No divider
• When a 2-pin RC oscillator or a 2-pin ceramic
• Divide-by-three circuit
oscillator is used, the PI0/OSC2 pin is used as
• Divide-by-four circuit
the OSC2 oscillator pin.
4
PA0 to PA3
I/O
• I/O port A0 to 3
1. Open-drain output
• High-level
The open-drain
Input in 4-bit units (IP instruction)
2. Built-in pull-up resistor
output (with
output option
Output in 4-bit units (OP instruction)
Options 1 and 2 may be specified
the output n-
must be
Test in single-bit units (BP and BNP instructions)
in bit units.
channel
selected and
Set/reset in single-bit units (SPB and RPB
transistor off)
the pin
instructions)
connected to
• PA3 (Any one of PA0 to 3 can be selected) is
VSS.
used for standby mode control.
• Applications must assure that key bounce or
similar noise does not occur on PA3 (or PA0 to 3)
during a HALT instruction execution cycle.
4
PC0 to PC3
I/O
• I/O port C0 to 3
1. Open-drain output
• High-level
The same as
Provides the same functions as PA0 to 3.
2. Built-in pull-up resistor
output
that for PC0 to 3
(See note.)
3. High-level output at reset
• Low-level
• The output level at reset can be specified to be
4. Low-level output at reset
output
either high or low.
• Options 1 and 2 may be specified (Specified as a
Note: This port does not have the standby
in bit units.
user option.)
mode control function.
• Options 3 and 4 are specified in
a single 4-bit group
4
PD0 to PD3
I/O
• I/O port D0 to 3
The same as those for PC0 to 3.
The same as
The same as
Provides the same functions as PC0 to 3.
those for PC0 to 3. those for PC0 to 3.
Continued on next page.


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