
μ
PD784218, 784218Y
Data Sheet  U12304EJ2V0DS00
4
OVERVIEW OF FUNCTIONS (1/2)
Part Number
μ
PD784218, 
μ
PD784218Y
Note 1
Item
Number of basic instructions
(mnemonics)
113
General-purpose registers
8 bits 
×
 16 registers 
×
 8 banks, or 16 bits 
×
 8 registers 
×
 8 banks (memory mapping)
Minimum instruction execution
time
  
160 ns/320 ns/640 ns/1,280 ns/2,560 ns (@ f
XX
 = 12.5 MHz operation with main system clock)
  61 
μ
s (@ f
XT
 = 32.768 kHz operation with subsystem clock)
Internal
memory
ROM
256 KB
RAM
12,800 bytes
Memory space
1 MB with program and data spaces combined
I/O ports
Total
86
CMOS input
8
CMOS I/O
72
N-ch open-drain I/O
6
Pins with pull-up
resistor
70
LED direct
drive outputs
22
Middle-
voltage pins
6
Real-time output port
4 bits 
×
 2, or 8 bits 
×
 1
Timer/counters
Timer/event counter:
(16-bit)
Timer counter 
×
 1
Capture/compare register 
×
 2
Pulse output
 PPG output
 Square wave output
 One-shot pulse output
Timer/event counter 1:
(8-bit)
Timer counter 
×
 1
Compare register 
×
 1
Pulse output
 PWM output
 Square wave output
Timer/event counter 2:
(8-bit)
Timer counter 
×
 1
Compare register 
×
 1
Pulse output
 PWM output
 Square wave output
Timer/event counter 5:
(8-bit)
Timer counter 
×
 1
Compare register 
×
 1
Pulse output
 PWM output
 Square wave output
Timer/event counter 6:
(8-bit)
Timer counter 
×
 1
Compare register 
×
 1
Pulse output
 PWM output
 Square wave output
Timer/event counter 7:
(8-bit)
Timer counter 
×
 1
Compare register 
×
 1
Pulse output
 PWM output
 Square wave output
Timer/event counter 8:
(8-bit)
Timer counter 
×
 1
Compare register 
×
 1
Pulse output
 PWM output
 Square wave output
Serial interfaces
  UART/IOE (3-wire serial I/O):  2 channels (on-chip baud rate generator)
  CSI (3-wire serial I/O, multi-master supporting I
2
C bus
Note 3
):  1 channel
A/D converter
8-bit resolution 
×
 8 channels
D/A converter
8-bit resolution 
×
 2 channels
Notes 1.
 Under development
2.
 The pins with ancillary functions are included in the I/O pins.
3.
 μ
PD784218Y only
Pins with
ancillary
functions
Note 2