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27
CHAPTER 1 OUTLINE (
μ
PD780078 SUBSERIES)
User
’
s Manual U14260EJ3V1UD
1.8 Outline of Functions
Part Number
Item
μ
PD780076
μ
PD780078
μ
PD78F0078
Internal memory
ROM
48 KB
(Mask ROM)
60 KB
(Mask ROM)
60 KB
Note 1
(Flash memory)
High-speed RAM
1024 bytes
Expansion RAM
1024 bytes
Memory space
64 KB
General-purpose registers
8 bits
×
32 registers (8 bits
×
8 registers
×
4 banks)
Minimum instruction
Minimum instruction execution time selection function
execution time
When main system
clock selected
0.166
μ
s/0.333
μ
s/0.666
μ
s/1.33
μ
s/2.66
μ
s (@ 12 MHz operation, expanded-
specification products only)
0.238
μ
s/0.477
μ
s/0.954
μ
s/1.90
μ
s/3.81
μ
s (@ 8.38 MHz operation)
When subsystem
clock selected
122
μ
s (@ 32.768 kHz operation)
Instruction set
16-bit operation
Multiply/divide (8 bits
×
8 bits, 16 bits
÷
8 bits)
Bit manipulation (set, reset, test, and Boolean operation)
BCD adjust, etc.
I/O ports
Total:
CMOS input:
CMOS I/O:
N-ch open-drain I/O (5 V tolerant):
52
8
40
4
Timer
16-bit timer/event counter: 2 channels
8-bit timer/event counter: 2 channels
Watch timer:
Watchdog timer:
1 channel
1 channel
Timer output
4 outputs (8-bit PWM output enabled: 2)
Clock output
93.7 kHz, 187 kHz, 375 kHz, 750 kHz, 1.5 MHz, 3 MHz, 6 MHz, 12 MHz
(12 MHz with main system clock, expanded-specification products only)
65.5 kHz, 131 kHz, 262 kHz, 524 kHz, 1.05 MHz, 2.10 MHz, 4.19 MHz, 8.38 MHz
(8.38 MHz with main system clock)
32.768 kHz (32.768 kHz with subsystem clock)
Buzzer output
1.46 kHz, 2.92 kHz, 5.85 kHz, 11.7 kHz
(12 MHz with main system clock, expanded-specification products only)
1.02 kHz, 2.05 kHz, 4.10 kHz, 8.19 kHz (8.38 MHz with main system clock)
A/D converter
10-bit resolution
×
8 channels
Low-voltage operation: AV
REF
= 2.2 to 5.5 V
Serial interface
3-wire serial I/O mode:
UART mode:
3-wire serial I/O/UART mode selectable
Note 2
: 1 channel
1 channel
1 channel
Vectored interrupt
source
Maskable
Internal: 18, External: 5
Non-maskable
Internal: 1
Software
1
Power supply voltage
V
DD
= 1.8 to 5.5 V
Operating ambient temperature
T
A
=
–
40 to +85
°
C
Package
64-pin plastic LQFP (14
×
14)
64-pin plastic QFP (14
×
14)
64-pin plastic TQFP (12
×
12)
Notes 1.
The capacity of the internal flash memory can be changed by means of the memory size switching register
(IMS).
2.
Select either of the functions of these alternate-function pins.