UPD17P068 Datasheet, PDF (2/36 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLER WITH ON-CHIP HARDWARE FOR TV SYSTEMS

µPD17P068
FUNCTIONAL OUTLINE
Item
Part Number
Program memory (ROM)
Character ROM (CROM)
Data memory (RAM)
Video RAM (VRAM)
System register
Register file
General port register
Instruction execution time
Stack levels
General ports
IDC
(Image Display Controller)
Serial interface
D/A converter
A/D converter
Interrupt
µPD17068
µPD17P068
Mask ROM
One-time PROM
• 12160 × 16 bits
Table reference area: 12160 × 16 bits
• 6144 × 16 bits
• 1007 × 4 bits (including area serving also as VRAM)
Data buffer: 4 × 4 bits, general register: 16 × 4 bits
• 672 × 4 bits (also used as data memory (RAM))
• 12 × 4 bits
• 12 × 4 bits
• 12 × 4 bits
• 2 µs (when using 8-MHz crystal resonator)
• 12 levels (stack manipulation possible)
• I/O ports
• Input ports
• Output ports
: 19
:4
: 21
• Number of displayable characters
• Display format
• Character types
• Character format
• Color
• Character size
: 192 characters max. per screen
(up to 350 characters with program)
: 16 × 16-dot mode 15 lines × 24 columns
: 14 × 16-dot mode 17 lines × 24 columns
: 255 types (user programmable)
: 16 × 16 dots and 14 × 16 dots selectable
(2 dots can be placed between
characters)
: 15 colors
: Vertical : 16 sizes (specifiable for
each line)
Horizontal : 24 sizes (specifiable for
each character)
• 2 systems
Serial interface 0 (compatible with 2-wire system, 3-wire system and I²C Bus)
Serial interface 1 (3-wire system)
• 8 bits × 9 channels (PWM output, 12.5 V max.)
• 6 bits × 8 channels (successive approximation by software)
• 10 channels (maskable interrupt)
External interrupt : 3 channels (INT0, INTNC, VSYNC, HSYNC)
Internal interrupt : 7 channels (timer 0, 1, serial interface 0, 1, basic timer 2,
VRAM pointer, timer 0 overflow)
2