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MC145028P Datenblatt(PDF) 2 Page - Freescale Semiconductor, Inc |
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MC145028P Datenblatt(HTML) 2 Page - Freescale Semiconductor, Inc |
2 / 20 page MC145026, MC145027, MC145028 Technical Data, Rev. 4 2 Freescale Semiconductor Introduction The MC145028 decoder treats all nine trinary digits as an address which allows 19,683 codes. If binary data is encoded, 512 codes are possible. The VT output goes high on the MC145028 when two addresses are consecutively received (in one encoding sequence) which both match the local address. • Operating Temperature Range: - 40 to + 85 °C • Very-Low Standby Current for the Encoder: 300 nA Maximum @ 25 °C • Interfaces with RF, Ultrasonic, or Infrared Modulators and Demodulators • RC Oscillator, No Crystal Required • High External Component Tolerance; Can Use ± 5% Components • Internal Power-On Reset Forces All Decoder Outputs Low • Operating Voltage Range: MC145026 = 2.5 to 18 V MC145027, MC145028 = 4.5 to 18 V Figure 1. Pin Assignments MC145026 ENCODER MC145027 DECODERS MC145028 DECODERS A1 A2 A3 A4 A5 A6/D6 A7/D7 VSS VDD Dout TE RTC CTC RS A9/D9 A8/D8 A1 A2 A3 A4 A5 R1 C1 VSS VDD D6 D7 D8 D9 VT R2/C2 Din A1 A2 A3 A4 A5 R1 C1 VSS VDD A6 A7 A8 A9 VT R2/C2 Din |
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