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Series for ASSP
Function
ROM
Capacity
Subseries
(Bytes)
µ PD789800
USB
8 K
µ PD789842
Inverter
8 K to 16 K 3 ch Note 1 1 ch
control
µ PD789850
On-chip
16 K
bus
controller
µ PD789861
Keyless
4 K
entry
µ PD789860
µ PD789862
16 K
µ PD789871
VFD
4 K to 8 K 3 ch
drive
µ PD789881
Meter
16 K
control
Notes 1. 10-bit timer: 1 channel
2. Flash memory version: 3.0 V
CHAPTER 1
GENERAL
Timer
8-Bit
A/D
8-Bit 16-Bit Watch WDT
−
−
2 ch
1 ch
1 ch
8 ch
−
1 ch
1 ch
1 ch
4 ch
−
−
2 ch
1 ch
1 ch
2 ch
−
1 ch
1 ch
−
2 ch
1 ch
1 ch
User's Manual U12978EJ3V0UD
10-Bit
Serial Interface
A/D
−
−
2 ch (USB: 1ch)
−
1 ch (UART: 1ch)
−
2 ch (UART: 1ch)
−
−
−
1 ch (UART: 1ch)
−
−
1 ch
−
−
1 ch (UART: 1 ch)
I/O
V
Remarks
DD
MIN.Value
−
31
4.0 V
−
30
4.0 V
−
18
4.0 V
14
1.8 V
RC-oscillation
version,
on-chip
EEPROM
On-chip
EEPROM
22
−
33 2.7 V
−
Note 2
28 2.7 V
25
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