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SP339EER1-TR Datasheet(PDF) 3 Page - Exar Corporation |
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SP339EER1-TR Datasheet(HTML) 3 Page - Exar Corporation |
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3 / 23 page  SP339E 3 REV. 1.0.4 RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION PIN DESCRIPTIONS BY MODE (MODE1, MODE0) Pin Name 00, Figure 1 01, Figure 2 10, Figure 3 11, Figure 4 1 L1 R1 Output 1 1 2 L2 R2 Output R1 Output R1 Output 3 L3 T1 Input T1 Input T1 Input 4 L4 T2 Input 5 L6 R3 Output 1 1 6 L7 T3 Input 7 L8 R4 Output 1 1 8 L9 R5 Output 1 1 9 VCC VCC 10 GND Ground 11 SLEW SLEW = VCC enables 250kbps slew limiting 12 DIR1 T1 Enable, R1 Disable T1 Enable 13 N/C This pin is not used and is not connected internally 14 MODE0 0 1 0 1 15 MODE1 0 0 1 1 16 N/C This pin is not used and is not connected internally 17 TERM Enables RS-485/422 receiver termination 18 N/C This pin is not used and is not connected internally 19 ENABLE ENABLE = VCC for operation, ENABLE = 0V for shutdown 20 VCC VCC |
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