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UPD17068GF Datasheet

  • UPD17068GF

  • 4-BIT SINGLE-CHIP MICROCONTROLLER CONTAINING IMAGE DISPLAY C...

  • 341頁

  • NEC   NEC

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DATA SHEET
MOS INTEGRATED CIRCUIT
碌
PD17068
4-BIT SINGLE-CHIP MICROCONTROLLER CONTAINING
IMAGE DISPLAY CONTROLLER AND PLL FREQUENCY
SYNTHESIZER FOR DIGITAL TUNING SYSTEMS
The
碌
PD17068 is a 4-bit single-chip microcontroller for digital tuning systems. It contains an image display
controller (IDC) that supports many types of display, and a PLL synthesizer.
The CPU of the
碌
PD17068 is capable of 4-bit parallel addition, logical operations, bit tests, setting/resetting
of a carry flag, and supports a powerful interrupt function and timer function.
The image display controller for on-screen display is user-programmable, allowing a range of displays to
be programmed.
The peripheral hardware includes a full complement of I/O ports, controlled with powerful I/O instructions,
as well as a serial interface, a 6-bit A/D converter, and an 8-bit D/A converter (PWM output).
FEATURES
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Program memory (ROM) : 24K bytes (12032
脳
16 bits)
Character ROM (CROM)
: 4086
脳
24 bits (255 characters)
Data memory (RAM)
: 1007
脳
4 bits
Video RAM (VRAM)
: 672
脳
4 bits (can be used for data memory)
Address stack
: 12 levels
Interrupt stack
: 2 levels
Instruction execution time : 2
碌
s (when an 8 MHz crystal is used)
PLL frequency synthesizer
8-bit serial interface
(2 channels: One for two-wire or three-wire mode, compatible with I
2
C bus, and one for three-wire mode only)
D/A converter: 8 bits
脳
9 lines (PWM output)
A/D converter: 6 bits
脳
8 lines
Horizontal synchronizing signal counter
Commercial power supply frequency counter
Power-failure detection circuit and power-on reset circuit
Interrupt input for remote-controller signal (with noise canceler)
User-programmable image display controller (IDC)
Displayed characters : Up to 192 per screen (more characters can be displayed when the use of the entire
screen is specified with a program)
Display mode
: 16
脳
16 dots in 15 lines
脳
24 columns
14
脳
16 dots in 17 lines
脳
24 columns
Character patterns
: 255
Character format
: 16
脳
16 dots or 14
脳
16 dots
Colors
: 15
Character sizes
: 16 sizes for height (can be specified per line)
24 sizes for width (can be specified per character)
Many I/O ports
I/O
: 19 ports
Input only
: 4 ports
Output only
: 21 ports
Operating supply voltage: 5 V
鹵10
%
Low power dissipation by use of CMOS technology
The information in this document is subject to change without notice.
Document No. IC-3525
(O.D. No. IC-8999)
Date Published November 1994 P
Printed in Japan
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1994

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