UPD784031 Datasheet, PDF (3/90 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLER

µPD784031
Functions
Item
Function
Number of basic instructions 113
(mnemonics)
General-purpose register
8 bits × 16 registers × 8 banks, or 16 bits × 8 registers × 8 banks (memory mapping)
Minimum instruction execution 125 ns/250 ns/500 ns/1 000 ns (at 32 MHz)
time
Internal
memory
ROM
RAM
None
2 048 bytes
Memory space
Program and data: 1M byte
I/O ports
Total
46
Input
8
Input/output 34
Output
4
Additional
function
pins^Note
Pins with pull- 32
up resistor
LED direct 8
drive outputs
Transistor
8
direct drive
Real-time output ports
4 bits × 2, or 8 bits × 1
Timer/counter
Timer/counter 0:
(16 bits)
Timer register × 1
Capture register × 1
Compare register × 2
Pulse output capability
• Toggle output
• PWM/PPG output
• One-shot pulse output
Timer/counter 1:
(8/16 bits)
Timer register × 1
Capture register × 1
Capture/compare register × 1
Compare register × 1
Pulse output capability
• Real-time output (4 bits × 2)
Timer/counter 2:
(8/16 bits)
Timer register × 1
Capture register × 1
Capture/compare register × 1
Compare register × 1
Pulse output capability
• Toggle output
• PWM/PPG output
Timer 3
(8/16 bits)
: Timer register × 1
Compare register × 1
PWM outputs
12-bit resolution × 2 channels
Serial interface
UART/IOE (3-wire serial I/O)
: 2 channels (incorporating baud rate generator)
CSI (3-wire serial I/O, 2-wire serial I/O): 1 channel
A/D converter
8-bit resolution × 8 channels
D/A converter
8-bit resolution × 2 channels
Watchdog timer
1 channel
Standby
HALT/STOP/IDLE mode
Interrupt
Hardware source 23 (16 internal, 7 external (sampling clock variable input: 1))
Software source BRK instruction, BRKCS instruction, operand error
Nonmaskable 1 internal, 1 external
Maskable
15 internal, 6 external
• 4-level programmable priority
• 3 operation statuses: vectored interrupt, macro service, context switching
Supply voltage
VDD = 2.7 to 5.5 V
Package
80-pin plastic QFP (14 × 14 × 2.7 mm)
80-pin plastic QFP (14 × 14 × 1.4 mm)
80-pin plastic TQFP (fine pitch) (12 × 12 mm)
Note Additional function pins are included in the I/O pins.
3