27
User’s Manual U14701EJ3V0UD
CHAPTER 1 OUTLINE
1.1 Features
Internal memory
Type
Program Memory
Data Memory
LCD Display RAM
Part Number
(ROM/Flash Memory)
High-Speed RAM
Expansion RAM
μ
PD780316, 780326, 780336
48 KB
1,024 bytes
1,536 bytes
40
×
8 bits
μ
PD780318, 780328, 780338
60 KB
μ
PD78F0338
60 KB
Note
Note
The capacity of internal flash memory can be changed by means of the memory size switching register (IMS).
Minimum instruction execution time changeable from high speed (0.2
μ
s: @10 MHz operation with main system
clock) to ultra-low speed (122
μ
s: @32.768 kHz operation with subsystem clock)
Instruction set suited to system control
Bit manipulation possible in all address spaces
Multiply and divide instructions
I/O port
μ
PD780316, 780318, 78F0338: 70 (Medium voltage N-ch open-drain: 4)
μ
PD780326, 780328:
62 (Medium voltage N-ch open-drain: 4)
μ
PD780336, 780338:
54 (Medium voltage N-ch open-drain: 4)
10-bit resolution A/D converter:
10 channels
8-bit resolution D/A converter:
1 channel
LCD controller/driver
Segment signal output
μ
PD780316, 780318:
24 max.
μ
PD780326, 780328:
32 max.
μ
PD780336, 780338, 78F0338: 40 max.
Common signal output
Dynamic display: 4 max.
Static display:
1
LCD reference voltage generator: booster type (
×
3 only)
Fine tuning of LCD reference voltage possible with external resistor
Blinking display possible (blinking interval can be selected: 0.5 s or 1 s)
Static display and dynamic display (1/3 bias only) can be used simultaneously
(Static display up to 12)
Serial interface
UART/3-wire serial I/O mode: 1 channel
Note
3-wire serial I/O mode:
1 channel
Timer
16-bit timer/event counter: 2 channels
8-bit timer/event counter:
3 channels
Watch timer:
1 channel
Watchdog timer:
1 channel