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4
m
PD78042F, 78043F, 78044F, 78045F
ROM
Internal high-speed RAM
Buffer RAM
FIP display RAM
Internal
memory
Item
Product name
Vectored
interrupt
16K bytes
512 bytes
64 bytes
48 bytes
m
PD78043F
m
PD78042F
m
PD78044F
m
PD78045F
General registers
8 bits
¥
32 registers (8 bits
¥
8 registers
¥
4 banks)
Variable instruction execution time
For main system clock
0.4
m
s/0.8
m
s/1.6
m
s/3.2
m
s/6.4
m
s (at 5.0 MHz)
122
m
s (at 32.768 kHz)
Multiplication/division (8 bits
¥
8 bits, 16 bits ÷ 8 bits)
Bit (set, reset, test, Boolean algebra)
For subsystem clock
Instruction set
I/O ports (including those
Total
: 68 lines
multiplexed with FIP pins)
CMOS input
:
2 lines
CMOS I/O
: 27 lines
N-ch open-drain
:
5 lines
P-ch open-drain I/O
: 16 lines
P-ch open-drain output
: 18 lines
FIP controller/driver
Total
: 34 lines
Segments
: 9 to 24 lines
Digits
: 2 to 16 lines
A/D converter
8-bit resolution
¥
8 channels
Power supply voltage: AV
DD
= 4.0 to 5.5 V
Serial interface
3-wire serial I/O/SBI/2-wire serial I/O selectable modes: 1 channel
3-wire serial I/O mode (with automatic transmission/
reception function of up to 64 bytes)
: 1 channel
Timer
16-bit timer/event counter
: 1 channel
8-bit timer/event counter
: 2 channels
Watch timer
: 1 channel
Watchdog timer
: 1 channel
6 bit up/down counter
: 1 channel
Timer output
3 lines (one for 14-bit PWM output)
Clock output
19.5 kHz, 39.1 kHz, 78.1 kHz, 156 kHz, 313 kHz, 625 kHz
(Main system clock: at 5.0 MHz)
32.768 kHz (Subsystem clock: at 32.768 kHz)
Buzzer output
1.2 kHz, 2.4 kHz, 4.9 kHz (Main system clock: at 5.0 MHz)
Maskable interrupt
Internal 10 lines, external 4 lines
Non-maskable interrupt
Internal 1 line
Software interrupt
1 line
Text input
Internal 1 line
Power supply voltage
V
DD
= 2.7 to 5.5 V
Package
80-pin plastic QFP (14
¥
20 mm)
Instruction
cycle
FUNCTIONAL OUTLINE
24K bytes
32K bytes
1024 bytes
40K bytes
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