UPD77110 データシートの表示（PDF） - NEC => Renesas Technology

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UPD77110

16-BIT FIXED-POINT DIGITAL SIGNAL PROCESSORS

NEC => Renesas Technology 

µPD77110, 77111, 77112

1.2 Connection of Unused Pins

1.2.1 Connection of Function Pins

When mounting, connect unused pins as follows:

Pin

INT1 - INT4

X/Y

DA0 - DA14

D0 - D15Note 1

MRD, MWR

HOLDRQ

BSTB, HOLDAK

SCK1, SCK2

SI1, SI2

SIEN1, SIEN2

SOEN1, SOEN2

SORQ1

SO1, SO2

SIAK1

HA0, HA1

HCS, HRD, HWR

HRE, HWE

HD0 - HD7Note 2

P0 - P3

TCK

TDO, TICE

TMS, TDI

TRST

CLKOUT

I/O

Input

Output

Output

I/O

Output

Input

Output

Input

Input

Input

Input

Output

Output

Output

Input

Input

Output

I/O

I/O

Input

Output

Input

Input

Output

Connect to EVDD.

Leave unconnected.

Recommended Connection

Connect to EVDD via pull-up resistor, or connect to GND via pull-down resistor.

Leave unconnected.

Connect to EVDD.

Leave unconnected.

Connect to EVDD or GND.

Connect to GND.

Leave unconnected.

Connect to EVDD or GND.

Connect to EVDD.

Leave unconnected.

Connect to EVDD via pull-up resistor, or connect to GND via pull-down resistor.

Connect to GND via pull-down resistor.

Leave unconnected.

Leave unconnected. (internally pulled up).

Leave unconnected. (internally pulled down).

Leave unconnected.

Notes 1. These pins may be left unconnected if the external data memory is not accessed in the program.

However, connect these pins as recommended in the halt and stop modes when the power

consumption must be lowered.

2. These pins may be left unconnected if HCS, HRD, and HWR are fixed to the high level.

However, connect these pins as recommended in the halt and stop modes when the power

consumption must be lowered.

18

Data Sheet U12801EJ4V0DS00

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