LC866548/40/32/28/24A
LC866548A/40A/32A/28A/24A Pin Description
Pin Name
VSS1, 2
I/O
Function Description
Option
Power pin (-)
Power pin (+)
*1
*1
VDD1,2,3,4
VP
Power pin (+) for the VFD output pull-down resist
Port 0
I/O •8-bit input/output port
Input/output in nibble units
•Pull-up resistor :
Provided/Not provided (each nibble)
•Output form :
P00 - P07
•Input for port 0 interrupt
•Input for HOLD release
CMOS/N-channel open drain
(each bit)
•15V withstand at N-channel open drain output
Port 1
I/O •8-bit Input/output port
Input/output can be specified in bit unit.
•Other pin functions
•Output form :
CMOS/N-channel open drain
(each bit)
P10 - P17
P10
P11
P12
P13
P14
P15
P16
P17
SIO0 data output
SIO0 data input/bus input/output
SIO0 clock input/output
SIO1 data output
SIO1 data input/bus input/output
SIO1 clock input/output
Buzzer output
Timer1 output (PWM0 output)
Port 3
I/O •8-bit input/output port
•Output form :
Input/output in bit unit
CMOS/N-channel open drain
(each bit)
P30 - P37
•15V withstand at N-channel open drain output
Port 7
•4-bit input/output port
I/O
I
Input/output in bit unit
•2-bit input port
P70 - P73
P74 - P75
•Other pin function
P70
INT0 input/HOLD release /Nch-Tr.
output for watchdog timer
INT1 input/HOLD release input
INT2 input/timer 0 event input
INT3 input with noise filter/timer 0
event input
P71
P72
P73
P74
P75
Input pin XT1 for 32.768kHz crystal
resonator oscillation
Output pin XT2 for 32.768kHz
crystal resonator oscillation
•Interrupt received form, vector address
rising
falling
rising/
falling
disable
disable
enable
enable
H level
L level
Vector
INT0
INT1
INT2
INT3
enable
enable
enable
enable
enable
enable
enable
enable
enable
enable
disable
disable
enable
enable
disable
disable
03H
0BH
13H
1BH
Port 8
•4-bit input/output port
Input/output in bit unit
I
P80 - P83
P84 - P87
I/O •4-bit input port
•Other function
AD input port (8 port pins)
Output for VFD display controller
segment/timing in common
S0/T0 to
S6/T6
O
Pull-down resistor :
Provided/Not provided (each bit)
(continue)
No.6700-7/21
SANYO [ SANYO SEMICON DEVICE ]
