NEC PD17062 User's Manual

NEC Computer Hardware User's Manual - PD17062.
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DATA SHEET

MOS INTEGRATED CIRCUIT

µPD17062

Document No. IC-3560
       (O.D. No. IC-8937)
Date Published January 1995 P
Printed in Japan

The 

µPD17062 is a 4-bit CMOS microcontroller for digital tuning systems.  The single-chip device

incorporates an image display controller enabling a range of different displays, together with a PLL frequency

synthesizer.

The CPU has six main functions:  4-bit parallel addition, logic operation, multiple bit test, carry-flag set/

reset, powerful interrupt, and a timer.

The device contains a user-programmable image display controller (IDC) for on-screen displays.  The

different displays can be controlled with simple programs.

The device also has a serial interface function, many input/output (I/O) ports controlled by powerful I/O

instructions, and 6-bit pulse width modulation (PWM) output for a 4-bit A/D converter and D/A converter.

FEATURES

4-BIT SINGLE-CHIP MICROCONTROLLER CONTAINING PLL FREQUENCY

SYNTHESIZER AND IMAGE DISPLAY CONTROLLER

• 4-bit microcontroller for digital tuning system

• Internal PLL frequency synthesizer:  With prescaler

µPB595

• 5  V 

±10%

• Low-power CMOS

• Program memory (ROM):  8K bytes  (16 bits 

× 3968

steps)

• Data memory (RAM):  4 bits 

× 336 words

• 6 stack levels

• 35 easy-to-understand instruction sets

• Support of decimal operations

• Instruction execution time:  2 

µs (with an 8-MHz

crystal)

• Internal D/A converter:  6 bits 

× 4 (PWM output)

• Internal A/D converter:  4 bits 

× 6

• Internal horizontal synchronizing signal counter

• Internal commercial power frequency counter

• Internal power-failure detector and power-on reset

circuit

• Internal image display controller (IDC) (user-pro-

grammable)

Number of characters in display:  Up to 99 on a

single screen

Display configuration:  14 rows 

× 19 columns

Number of character types:  120

Character format:  10 

× 15 dots (rimming possible)

Number of colors:  8

Character size:  Four sizes in each of the horizontal

and vertical dimensions

Internal 1H circuit for preventing vertical deflection

• Internal 8-bit serial interface (One system with two

channels:  three-wire or two-wire)

• Interrupt input for remote-controller signals (with

noise canceler)

• Many I/O ports

Number of I/O ports

: 15

Number of input ports : 4

Number of output ports: 8

©

1995

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