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SP334CT

Programmable RS-232/RS-485 Transceiver

Signal Processing Technologies 

+3V

RXEN

0V

5V

RECEIVER OUT

VIL

VIH

RECEIVER OUT

0V

tSKEW = |tPHL - tPLH|

1.5V f = 1MHz; tR ≤ 10ns; tF ≤ 10ns

tZL

1.5V Output normally LOW

1.5V

tLZ

0.5V

1.5V Output normally HIGH

tZH

0.5V

tHZ

Figure 8. Receiver Enable and Disable Times

TTL

Input

Driver

Output

Figure 9. Typical RS-232 Driver Output

Figure 10. Typical RS-485 Driver Output

SP334DS/10

Programmable RS-232/RS-485 Transceiver

6

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