Datasheet MC145026, MC145027, MC145028 (NXP)
| Manufacturer | NXP |
| Description | Encoder and Decoder Pairs CMOS |
| Pages / Page | 20 / 1 — Freescale Semiconductor. MC145026, MC145027. MC145028. MC145026, … |
| File Format / Size | PDF / 810 Kb |
| Document Language | English |
Freescale Semiconductor. MC145026, MC145027. MC145028. MC145026, MC145027,. Introduction. Ordering Information. Device. Package
Model Line for this Datasheet
Text Version of Document
filename MC145026.pdf filename MC145026.pdf filename MC145026.pdf filename MC145026.pdf filename MC145026.pdf filename MC145026.pdf link to page 1 link to page 4 link to page 8 link to page 9 link to page 16 link to page 18
Freescale Semiconductor
MC145026/D Technical Data Rev. 4, 1/2005
MC145026, MC145027 MC145028
16 16 1 1
MC145026, MC145027,
P Suffix D Suffix Plastic DIP
MC145028
SOG Package Case 648 Case751B Encoder and Decoder Pairs 16 CMOS 1 DW Suffix SOG Package Case 751G
1 Introduction Ordering Information
These devices are designed to be used as
Device Package
encoder/decoder pairs in remote control applications. MC145026P Plastic DIP The MC145026 encodes nine lines of information and MC145026D SOG Package serially sends this information upon receipt of a transmit MC145027P Plastic DIP enable (TE) signal. The nine lines may be encoded with MC145027DW SOG Package trinary data (low, high, or open) or binary data (low or MC145028P Plastic DIP high). The words are transmitted twice per encoding MC145028DW SOG Package sequence to increase security.
Contents
The MC145027 decoder receives the serial stream and
1 Introduction . 1
interprets five of the trinary digits as an address code.
2 Electrical Specifications . 4
Thus, 243 addresses are possible. If binary data is used at
3 Operating Characteristics . 8
the encoder, 32 addresses are possible. The remaining
4 Pin Descriptions . 9
serial information is interpreted as four bits of binary
5 MC145027 and MC145028 Timing . 16
data. The valid transmission (VT) output goes high on
6 Package Dimensions . 18
the MC145027 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. Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its products. © Freescale Semiconductor, Inc., 2005. All rights reserved. Document Outline 1 Introduction 2 Electrical Specifications 3 Operating Characteristics 3.1 MC145026 3.2 MC145027 3.3 MC145028 4 Pin Descriptions 4.1 MC145026 Encoder 4.2 MC145027 and MC145028 Decoders 5 MC145027 and MC145028 Timing 6 Package Dimensions
Freescale Semiconductor
MC145026/D Technical Data Rev. 4, 1/2005
MC145026, MC145027 MC145028
16 16 1 1
MC145026, MC145027,
P Suffix D Suffix Plastic DIP
MC145028
SOG Package Case 648 Case751B Encoder and Decoder Pairs 16 CMOS 1 DW Suffix SOG Package Case 751G
1 Introduction Ordering Information
These devices are designed to be used as
Device Package
encoder/decoder pairs in remote control applications. MC145026P Plastic DIP The MC145026 encodes nine lines of information and MC145026D SOG Package serially sends this information upon receipt of a transmit MC145027P Plastic DIP enable (TE) signal. The nine lines may be encoded with MC145027DW SOG Package trinary data (low, high, or open) or binary data (low or MC145028P Plastic DIP high). The words are transmitted twice per encoding MC145028DW SOG Package sequence to increase security.
Contents
The MC145027 decoder receives the serial stream and
1 Introduction . 1
interprets five of the trinary digits as an address code.
2 Electrical Specifications . 4
Thus, 243 addresses are possible. If binary data is used at
3 Operating Characteristics . 8
the encoder, 32 addresses are possible. The remaining
4 Pin Descriptions . 9
serial information is interpreted as four bits of binary
5 MC145027 and MC145028 Timing . 16
data. The valid transmission (VT) output goes high on
6 Package Dimensions . 18
the MC145027 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. Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its products. © Freescale Semiconductor, Inc., 2005. All rights reserved. Document Outline 1 Introduction 2 Electrical Specifications 3 Operating Characteristics 3.1 MC145026 3.2 MC145027 3.3 MC145028 4 Pin Descriptions 4.1 MC145026 Encoder 4.2 MC145027 and MC145028 Decoders 5 MC145027 and MC145028 Timing 6 Package Dimensions
