UPD784216 View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD784216

16-BIT SINGLE-CHIP MICROCONTROLLERS

NEC => Renesas Technology 

µPD78F4216A, 78F4218A, 78F4216AY, 78F4218AY

Table 4-1. Types of Pin I/O Circuits and Recommended Connection of Unused Pins (2/2)

Pin Name

RESET

XT1

XT2

AVREF0

AVREF1

AVDD

AVSS

VPP

I/O Circuit Type

2-G

16

−

I/O

Input

−

Recommended Connection of Unused Pins

−

Connect to VSS

Leave open

Connect to VSS

Connect to VDD

Connect to VSS

Connect this pin to VSS directly or via a pull-down resist in normal

operation mode. Connect the VPP pin to VSS via a pull-down

resistor in a system in which the on-chip flash memory is written

while mounted on the target board.

For the pull-down connection, it is recommended to use a resistor

with a resistance ranging from 470 Ω to 10 kΩ.

Remark Because the circuit type numbers are standardized among the 78K Series products, they are not

sequential in some models (i.e., some circuits are not provided).

Data Sheet U14125EJ1V0DS00

17

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