82B96 Просмотр технического описания (PDF) - Philips Electronics

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82B96

Dual bi-directional bus buffer

Philips Electronics 

Philips Semiconductors

Dual bi-directional bus buffer

Product data

P82B96

TYPICAL APPLICATIONS

See AN460 and AN255 for more application detail.

+5 V

I2C

SDA

+VCC (2–15 V)

Tx

(SDA)

R1

‘SDA’

(NEW LEVELS)

1/2 PB2B96

Rx

(SDA)

SU01013

Figure 1. Interfacing an ‘I2C’ type of bus with different logic levels.

+VCC

R2

+VCC1

R4

+5 V

R1

I2C

SDA

R3

Rx

(SDA)

1/2 P82B96

Tx

(SDA)

R5

I2C

SDA

SU01014

Figure 2. Galvanic isolation of I2C nodes via opto-couplers

MAIN ENCLOSURE

12 V

3.3–5 V

LONG CABLES

REMOTE CONTROL ENCLOSURE

12 V

3.3–5 V

SCL

3.3–5 V

12 V

SCL

3.3–5 V

SDA

P82B96

Figure 3. Long distance I2C communications

P82B96

SDA

SU01708

2004 Mar 26

6

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