PD178046_15 Datasheet, PDF (3/42 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCONTROLLER

PRELIMINARY PRODUCT INFORMATION
MOS INTEGRATED CIRCUIT
µPD178046, 178048
8-BIT SINGLE-CHIP MICROCONTROLLER
DESCRIPTION
The µPD178046 and 178048 are 8-bit single-chip CMOS microcontrollers with hardware for digital tuning systems.
Employing the 78K/0 architecture as the CPU, these microcontrollers provide easy control access to the internal
memories and peripheral hardware. The instructions are high-speed 78K/0 instructions suitable for system control.
As the peripheral hardware, an OSD (on-screen display) controller and PWM (pulse width modulation) output for
TV use, as well as many I/O ports, timers, A/D converter, serial interface, and power-ON clear circuit are provided.
A flash memory model, µPD178F048, that can operate on the same supply voltage as the mask ROM models, and
many development tools are under development.
The functions of these microcontrollers are described in detail in the following User’s Manuals. Be sure
to read these manuals when you design your system.
µPD178048 Subseries User’s Manual : Planned to be published
78K/0 Series User’s Manual - Instruction : U12326E
FEATURES
• ROM and RAM capacities
Item
Part Number
µPD178046
µPD178048
Program Memory
(ROM)
48K bytes
60K bytes
Character ROM
(CROM)
6912 bytes
(256 characters)
Data Memory
Internal high-speed Internal expansion
RAM
RAM
512 bytes
512 bytes
Video RAM
(VRAM)
482 bytes (12 × 24
characters MAX.)
• Instruction cycle: 0.4 µs (with 5.0-MHz crystal resonator)
• Many peripheral hardware circuits
General-purpose I/O ports, A/D converter, serial interface, timers, power-ON clear circuit
• OSD controller and PWM output
• Vectored interrupts: 17
• Supply voltage: VDD = 4.5 to 5.5 V
The information contained in this document is being issued in advance of the production cycle for the
device. The parameters for the device may change before final production or NEC Corporation, at its own
discretion, may withdraw the device prior to its production.
Document No. U13183EJ1V0PM00 (1st edition)
Date Published June 1998 N CP(K)
Printed in Japan
©
1998