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1.8 Outline of Functions
Item
Internal
Flash memory
memory
(self-programming
supported)
RAM
Memory space
Main system
High-speed system
clock
clock
(Oscillation
Internal high-speed
frequency)
oscillation clock
Subsystem clock
(Oscillation frequency)
Internal low-speed oscillation clock
(For WDT)
General-purpose register
Minimum instruction execution time
Instruction set
I/O port
Timer
Timer outputs
RTC outputs
Clock output/buzzer output
A/D converter
26
CHAPTER 1 OUTLINE
μ
μ
PD78F1142,
PD78F1143,
μ
μ
PD78F1142A
PD78F1143A
64 KB
96 KB
4 KB
6 KB
1 MB
X1 (crystal/ceramic) oscillation, external main system clock input (EXCLK)
2 to 20 MHz: V
= 2.7 to 5.5 V, 2 to 5 MHz: V
DD
Internal oscillation
8 MHz (TYP.): V
= 1.8 to 5.5 V
DD
XT1 (crystal) oscillation
32.768 kHz (TYP.): V
= 1.8 to 5.5 V
DD
Internal oscillation
240 kHz (TYP.): V
= 1.8 to 5.5 V
DD
8 bits × 32 registers (8 bits × 8 registers × 4 banks)
μ
0.05
s (High-speed system clock: f
μ
0.125
s (Internal high-speed oscillation clock: f
μ
61
s (Subsystem clock: f
= 32.768 kHz operation)
SUB
• 8-bit operation, 16-bit operation
• Multiply (8 bits × 8 bits)
• Bit manipulation (Set, reset, test, and Boolean operation), etc.
Total:
CMOS I/O:
CMOS input:
CMOS output:
N-ch open-drain I/O (6 V tolerance): 4
• 16-bit timer:
• Watchdog timer:
• Real-time counter:
7 (PWM output: 6)
2
• 1 Hz (Subsystem clock: f
SUB
• 512 Hz, 16.384 kHz, or 32.768 kHz (Subsystem clock: f
2
• 2.44 kHz, 4.88 kHz, 9.76 kHz, 1.25 MHz, 2.5 MHz, 5 MHz, 10 MHz
(peripheral hardware clock: f
• 256 Hz, 512 Hz, 1.024 kHz, 2.048 kHz, 4.096 kHz, 8.192 kHz, 16.384 kHz, 32.768 kHz
(Subsystem clock: f
= 32.768 kHz operation)
SUB
10-bit resolution × 8 channels (AV
User's Manual U17854EJ9V0UD
μ
μ
PD78F1144,
PD78F1145,
μ
μ
PD78F1144A
PD78F1145A
128 KB
192 KB
8 KB
10 KB
= 1.8 to 5.5 V
DD
= 20 MHz operation)
MX
= 8 MHz (TYP.) operation)
IH
55
46
4
1
8 channels
1 channel
1 channel
= 32.768 kHz)
SUB
= 20 MHz operation)
MAIN
= 2.3 to 5.5 V)
REF
(1/2)
μ
PD78F1146,
μ
PD78F1146A
256 KB
12 KB
= 32.768 kHz)
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