UPD78C11AL-XXX 查看數據表（PDF） - NEC => Renesas Technology

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UPD78C11AL-XXX

8-BIT SINGLE-CHIP MICROCOMPUTER (WITH A/D CONVERTER)

NEC => Renesas Technology 

µPD78C10A,78C11A,78C12A

1.1 LIST OF PIN FUNCTION (2/2)

Pin Name

I/O

Function

MODE0

MODE1

(Mode)

NMI

(Non-Maskable

Interrupt)

INT1

(Interrupt

Request)

AN7 to AN0

(Analog Input)

Input-output

Input

Input

Input

µPD78C11A and 78C12A sets MODE0 pin to “0” (low level), and MODE1 pin to “1” (high

level*)

µPD78C10A allows you to set MODE0, MODE1 pins to select 4K, 16K, or 64K bytes for the

size of the memory which is installed externally.

MODE0 MODE1 External Memory

0

0

4K bytes

1

0

16K bytes

1

1

64K bytes

Also, when each of MODE0 and MODE1 pins is set to “1”*, it is synchronized to ALE to output

a control signal.

Non-maskable interrupt input pin of the edge trigger (falling edge)

A maskable interrupt input pin of the edge trigger (rising edge). Also, it can be used as a

zero-cross detection pin for AC input.

8 pins of analog input to A/D converter. AN7 to AN4 can be used as edge detection (falling

edge) input.

VAREF

(Reference

Voltage)

Input

A common pin serving both as a standard voltage input pin for A/D converter and as a

control pin for A/D converter operation.

AVDD

(Analog VDD)

Power supply pin for A/D converter.

AVSS

(Analog VSS)

X1, X2

5

(Crystal)

RESET

(Reset)

STOP

(Stop)

VDD

Input

GND pin for A/D converter.

Crystal connection pins for system clock oscillation. X1 should be input when a clock is

supplied from outside. Input the clock of the reverse phase of X1 to X2.

Low-level active system reset input.

Control signal input pin in hardware STOP mode. The oscillation stops when a clock is

supplied from outside.

Positive power supply pin.

VSS

GND pin.

* Pull-up. Pull-up resister R is 4 [kΩ] ≤ R ≤ 0.4 tCYC [kΩ] (tCYC is ns unit).

Remarks The µPD78C11A and µPD78C12A are pull-up resistor incorporation specifiable by mask option at ports

A, B and C.

8

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