μ
PD780021Y, 780022Y, 780023Y, 780024Y
Preliminary Data Sheet
5
FUNCTION OVERVIEW
Part Number
μ
PD780021Y
μ
PD780022Y
μ
PD780023Y
μ
PD780024Y
Item
Internal
ROM
8 Kbytes
16 Kbytes
24 Kbytes
32 Kbytes
memory
High-speed RAM
512 bytes
1024 bytes
Memory space
64 Kbytes
General-purpose registers
8 bits
×
32 registers (8 bits
×
8 registers
×
4 banks)
Minimum instruction execution time
On-chip variable function of minimum instruction execution time
When main system
clock selected
0.24
μ
s/0.48
μ
s/0.95
μ
s/1.91
μ
s/3.81
μ
s (at 8.38-MHz operation)
When subsystem
clock selected
122
μ
s (at 32.768-kHz operation)
Instruction set
16-bit operation
Multiply/divide (8 bits
×
8 bits,16 bits
÷
8 bits)
Bit manipulate (set, reset, test, Boolean operation)
BCD adjust, etc.
I/O ports
Total
: 51
CMOS input
CMOS I/O
N-ch open-drain I/O (5-V withstand voltage) : 4
: 8
: 39
A/D converter
8-bit resolution
×
8 channels
Low-voltage operation available: AV
DD
= 2.7 to 5.5 V
Serial interface
3-wire serial I/O mode
UART mode
I
2
C bus mode (multimaster supported) : 1 channel
: 1 channel
: 1 channel
Timer
16-bit timer/event counter
8-bit timer/event counter
Watch timer
Watchdog timer
: 1 channel
: 2 channels
: 1 channel
: 1 channel
Timer output
3 (8-bit PWM output capable: 2)
Clock output
65.5 kHz, 131 kHz, 262 kHz, 524 kHz, 1.05 MHz, 2.10 MHz, 4.19 MHz, 8.38 MHz
(at 8.38-MHz operation with main system clock)
32.768 kHz (at 32.768-kHz operation with subsystem clock)
Buzzer output
1.02 kHz, 2.05 kHz, 4.10 kHz, 8.19 kHz (at 8.38-MHz operation with main system clock)
Vectored
interrupt
source
Maskable
Internal : 13, 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 shrink DIP (750 mils)
64-pin plastic QFP (14
×
14 mm)
64-pin plastic LQFP (12
×
12 mm)