24
Preliminary User’s Manual U16035EJ1V0UM
CHAPTER 1 OUTLINE
1.1 Features
•
Internal memory
Type
Program Memory
Data Memory
Part Number
(ROM/Flash Memory)
(High-Speed RAM)
µ
PD780021AS, 780031AS
8 KB
512 bytes
µ
PD780022AS, 780032AS
16 KB
µ
PD780023AS, 780033AS
24 KB
1024 bytes
µ
PD780024AS, 780034AS
32 KB
µ
PD78F0034BS
32 KB
Note
1024 bytes
Note
Note
The capacities of internal flash memory and internal high-speed RAM can be changed by means of the
memory size switching register (IMS).
•
External memory expansion space: 64 KB
•
Minimum instruction execution time changeable from high speed (0.24
µ
s: @ 8.38 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 ports: 39
•
8-bit resolution A/D converter:
8 channels (
µ
PD780024AS Subseries only)
•
10-bit resolution A/D converter: 8 channels (
µ
PD780034AS Subseries only)
•
Serial interface:
3 channels
• 3-wire serial I/O mode: 2 channels
• UART mode:
1 channel
•
Timer: Five channels
• 16-bit timer/event counter: 1 channel
• 8-bit timer/event counter:
2 channels
• Watch timer:
1 channel
• Watchdog timer:
1 channel
•
Vectored interrupt sources: 20
•
Two types of on-chip clock oscillators (main system clock and subsystem clock)
•
Power supply voltage: V
DD
= 1.8 to 5.5 V
