DS2406 Ver la hoja de datos (PDF) - Dallas Semiconductor -> Maxim Integrated

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componentes Descripción

Fabricante

DS2406

Dual Addressable Switch Plus 1K-Bit Memory

Dallas Semiconductor -> Maxim Integrated 

DS2406 EQUIVALENT CIRCUIT Figure 11

1-Wire Interface

DATA

RX

5 µA

Typ.

Ground

TX

100 Ω

MOSFET

to PIO-

Control

1-Wire DATA

from PIO-

Control

DS2406

PIO Channel

Activity

Latch "1"

QD

Edge

Detector

PIO

Q

Reset

DQ

10 MΩ

Typ.

RQ

Channel

Flip-Flop

Ground

BUS MASTER CIRCUIT Figure 12

A) Open Drain

VPUP

VDD

BUS MASTER

DS5000 OR 8051-

EQUIVALENT

Open Drain

RX

Port Pin

10 k Ω

5 kΩ

SD

2N7000 D

TX

PGM

2N7000 S

12V

10 k Ω

S

D

D 470 pF

VP0300L

OR

VP0106N3

OR

BSS110

to data connection

of DS2406

S

2N7000

Capacitor added to reduce

coupling on data line due to

programming signal switching

The interface is reduced to the5kΩ pull-up resistor if one does not intend to program the EPROM cells.

B) Standard TTL

VDD

BUS MASTER

VPUP

12V

(10 mA min.)

TTL-Equivalent

Port Pins

RX

TX

5 kΩ

5 kΩ

PROGRAMMING PULSE

to data connection

of DS2406

The diode and programming circuit are not required if one does not intend to program the EPROM cells

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