LC866548 Datasheet, PDF (7/21 Pages) Sanyo Semicon Device – 8-Bit Single Chip Microcontroller

LC866548/40/32/28/24A
LC866548A/40A/32A/28A/24A Pin Description
Pin Name
VSS1, 2
VDD1,2,3,4
VP
Port 0
P00 - P07
I/O
Function Description
Power pin (-)
*1
Power pin (+)
*1
Power pin (+) for the VFD output pull-down resist
I/O •8-bit input/output port
Input/output in nibble units
•Input for port 0 interrupt
•Input for HOLD release
•15V withstand at N-channel open drain output
Option
•Pull-up resistor :
Provided/Not provided (each nibble)
•Output form :
CMOS/N-channel open drain
(each bit)
Port 1
P10 - P17
I/O •8-bit Input/output port
Input/output can be specified in bit unit.
•Other pin functions
P10 SIO0 data output
P11 SIO0 data input/bus input/output
P12 SIO0 clock input/output
P13 SIO1 data output
P14 SIO1 data input/bus input/output
P15 SIO1 clock input/output
P16 Buzzer output
P17 Timer1 output (PWM0 output)
•Output form :
CMOS/N-channel open drain
(each bit)
Port 3
P30 - P37
I/O •8-bit input/output port
Input/output in bit unit
•15V withstand at N-channel open drain output
•Output form :
CMOS/N-channel open drain
(each bit)
Port 7
P70 - P73
P74 - P75
Port 8
P80 - P83
P84 - P87
S0/T0 to
S6/T6
•4-bit input/output port
I/O Input/output in bit unit
I •2-bit input port
•Other pin function
P70 INT0 input/HOLD release /Nch-Tr.
output for watchdog timer
P71 INT1 input/HOLD release input
P72 INT2 input/timer 0 event input
P73 INT3 input with noise filter/timer 0
event input
P74 Input pin XT1 for 32.768kHz crystal
resonator oscillation
P75 Output pin XT2 for 32.768kHz
crystal resonator oscillation
•Interrupt received form, vector address
rising falling rising/ H level L level Vector
falling
INT0 enable enable disable enable enable 03H
INT1 enable enable disable enable enable 0BH
INT2 enable enable enable disable disable 13H
INT3 enable enable enable disable disable 1BH
•4-bit input/output port
I Input/output in bit unit
I/O •4-bit input port
•Other function
AD input port (8 port pins)
O Output for VFD display controller
Pull-down resistor :
segment/timing in common
Provided/Not provided (each bit)
(continue)
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