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MC145026D Scheda tecnica(PDF) 1 Page - LANSDALE Semiconductor Inc. |
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MC145026D Scheda tecnica(HTML) 1 Page - LANSDALE Semiconductor Inc. |
1 / 19 page www.lansdale.com Page 1 of 19 Issue 0 ML145026 ML145027 ML145028 Encoder and Decoder Pairs Legacy Device: Motorola/Freescale MC145026, MC145027, MC145028 These devices are designed to be used as encoder/decoder pairs in remote control applications. The ML145026 encodes nine lines of information and serially sends this information upon receipt of a transmit enable (TE) signal. The nine lines may be encoded with trinary data (low, high, or open) or binary data (low or high). The words are transmitted twice per encoding sequence to increase security. The ML145027 decoder receives the serial stream and interprets five of the trinary digits as an address code. Thus, 243 addresses are possible. If binary data is used at the encoder, 32 addresses are possible. The remaining serial information is interpreted as four bits of binary data. The valid trans- mission (VT) output goes high on the ML145027 when two conditions are met. First, two addresses must be consecutively received (in one encoding sequence) which both match the local address. Second, the 4 bits of data must match the last valid data received. The active VT indicates that the information at the Data output pins has been updated. The ML145028 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 ML145028 when two addresses are consecu- tively received (in one encoding sequence) which both match the local address. • Operating Temperature Range: TA = – 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: ML145026 = 2.5 to 18 V* ML145027, ML145028 = 4.5 to 18 V • For Infrared Applications, See Application Note AN1016/D PIN ASSIGNMENTS ML145026 ENCODER ML145028 DECODERS ML145027 DECODERS 13 14 15 16 9 10 11 12 5 4 3 2 1 8 7 6 CTC RTC TE Dout VDD A8/D8 A9/D9 RS A4 A3 A2 A1 VSS A7/D7 A6/D6 A5 13 14 15 16 9 10 11 12 5 4 3 2 1 8 7 6 D9 D8 D7 D6 VDD Din R2/C2 VT A4 A3 A2 A1 VSS C1 R1 A5 13 14 15 16 9 10 11 12 5 4 3 2 1 8 7 6 A9 A8 A7 A6 VDD Din R2/C2 VT A4 A3 A2 A1 VSS C1 R1 A5 P DIP 16 = EP PLASTIC DIP CASE 648 SO 16 = -5P SOG PACKAGE CASE 751B SO 16W = - 5P SOG PACKAGE CASE 751G 16 1 16 1 16 1 CROSS REFERENCE/ORDERING INFORMATION MOTOROLA P DIP 16 MC145026P ML145026EP SO 16 MC145026D ML145026-5P P DIP 16 MC145027P ML145027EP SO 16 MC145027DW ML145027-5P P DIP 16 MC145028P ML145028EP SO 16 MC145028DW ML145028- 5P LANSDALE PACKAGE Note: Lansdale lead free (Pb) product, as it becomes available, will be identified by a part number prefix change from ML to MLE. CMOS |
Codice articolo simile - MC145026D |
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Descrizione simile - MC145026D |
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