
FEDL64P168-02
Semiconductor
ML64P168
2/51
Memory space
Internal program memory
: 8160 bytes
Internal data memory
: 512 nibbles
RC oscillation type A/D converter
: 2 channels
Time division 2-channel method
Counter A
: 1 / ( 104
× 8 ) × 1
Counter B
: 1 / 214
× 1
I/O port
Input-output port
: 3 ports
× 4 bits
Input port
: 1 port
× 4 bits
Output port
: 1 port
× 4 bits
( 8 out of the 34 LCD driver outputs can be used as
output-only ports by mask option. )
LCD driver
: 34 outputs
(1) At 1/4 duty and 1/3 bias
: 120 segments (max.)
(2) At 1/3 duty and 1/3 bias
: 93 segments (max.)
(3) At 1/2 duty and 1/2 bias
: 64 segments (max.)
Voltage Regulator for LCD Driver (selectable by mask option)
The LCD panel display is stable regardless of temporary supply voltage drop, because the
voltage generated by the voltage regulator for LCD driver is supplied to the bias voltage
generator as a reference voltage.
LCD Operating Voltage
When the voltage regulator for LCD driver is used
: 3.6 V ( Duty cycle = 1/4 or 1/3 )
: 2.4 V ( Duty cycle = 1/2 )
When the voltage regulator for LCD driver is not used
: 4.5 V ( Duty cycle = 1/4 or 1/3 )
: 3.0 V ( Duty cycle = 1/2 )
Buzzer driver
: 1 output ( 4 output modes selectable )
Serial port
: Synchronous 8-bit transfer
Selectable as external clock / internal clock
Selectable as MSB first / LSB first
Capture circuit
: 2 channels ( 32Hz, 64Hz, 128Hz, 256Hz )
Battery check circuit
: 1 ( incorporated into the input-only port )
Watchdog timer
Interrupt
External interrupt
: 2 sources
Internal interrupt
: 8 sources
Package:
80-pin plastic QFP ( QFP80-P-1420-0.80-BK )
Product name : ML64P168 - xxxGP ( written PROM )
ML64P168 - NGP
( blanked PROM )
80-pin plastic QFP ( QFP80-P-1414-0.65-K )
Product name : ML64P168 - xxxGA ( written PROM )
ML64P168 - NGA ( blanked PROM )
xxx indicates a code number.