UPD784936A View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD784936A

16-BIT SINGLE-CHIP MICROCONTROLLERS

NEC => Renesas Technology 

DATA SHEET

MOS INTEGRATED CIRCUITS

µPD784935A,784936A,784937A,784938A

16-BIT SINGLE-CHIP MICROCONTROLLERS

DESCRIPTION

The µPD784935A, 784936A, 784937A, and 784938A are members of the µPD784938A Subseries in the 78K/IV

Series. These microcontrollers are based on the µPD784908 Subseries but are provided with the higher internal ROM

and RAM capacities and a ROM correction function.

In addition, a flash memory version, µPD78F4938A, that can operate in the same power supply voltage range as

the mask ROM version, and various development tools are also available.

Detailed function descriptions are provided in the following user’s manuals. Be sure to read them before

designing.

µPD784938A Subseries User’s Manual - Hardware: U13987E

78K/IV Series User’s Manual - Instructions:

U10905E

FEATURES

• 78K/IV Series

• Minimum instruction execution time:

320 ns (fxx = 6.29 MHz)

160 ns (fxx = 12.5 MHz)

• I/O ports: 80 pins

• Timers/counters: 16-bit timer/event counter × 1 unit

8-/16-bit timer/event counter × 2 units

8-/16-bit timer × 1 unit

• Serial interface:

4 channels

• UART/IOE (3-wire serial I/O): 2 channels

• CSI (3-wire serial I/O):

2 channels

• PWM output: 2 outputs

• Standby function

HALT/STOP/IDLE mode

• Clock division function

• External expansion function

• Internal ROM correction function

• Watchdog timer: 1 channel

• Clock output function:

Selectable from fCLK, fCLK/2, fCLK/4, fCLK/8, and fCLK/16

• A/D converter: 8-bit resolution × 8 channels

• IEBusTM controller

• Watch timer

• Low power consumption

• Supply voltage:

• VDD = 4.0 to 5.5 V (@12.58 MHz operation)

• VDD = 3.0 to 5.5 V (@6.29 MHz operation)

APPLICATION

Car audio, etc.

Unless otherwise specified, the µPD784938A is treated as the representative model in this document.

The information in this document is subject to change without notice. Before using this document, please

confirm that this is the latest version.

Not all devices/types available in every country. Please check with local NEC representative for availability

and additional information.

Document No. U13572EJ2V0DS00

Date Published January 2001 N CP(K)

Printed in Japan

The mark shows major revised points.

©

1999, 2001

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