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TMS37F158LGIDBTRG4 Datasheet(PDF) 2 Page - Texas Instruments |
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TMS37F158LGIDBTRG4 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 8 page DBT PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 21 22 23 24 25 26 27 28 29 30 TDAT TEN EOB NPOR PUSH BUSY P2.3 P2.4 P1.0 P1.1 TCLK RF VCL GND VBAT VBATI P2.2 P2.0 RESET XIN 11 12 13 14 15 P1.2 P1.4 P1.5 P1.6 P1.7 16 17 18 19 20 XOUT VSS P2.5 VCC TEST TMS37F158 SCBS877 – MAY 2012 www.ti.com The CED80 manages the immobilizer communication and push-button interaction. During sleep state, the device enters a special low-power mode with only 60 nA of current consumption. By sensing the pressing of a push button, the device wakes up and controls an external UHF transmitter or UHF transceiver. Security keys and rolling codes can be stored in the integrated EEPROM memory. This memory is accessible over the LF interface without support from the battery in the keyfob or by the internal microcontroller if the battery is functional. The CED80 offers a special battery-charge mode; to achieve faster charging, it is recommend to add a charging amplifier device on the base station side. The external resonant circuit with an LF coil and a resonant capacitor can be trimmed to the correct resonant frequency with the integrated trimming capability, which eliminates part tolerances. The small DBT 30-pin package together with only a few external components results in cost-efficient design. Ordering Information(1) TA PACKAGE(2) ORDERABLE PART NUMBER –40°C to 85°C TSSOP – DBT TMS37F158LGIDBTRG4 (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. (2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging. 2 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated Product Folder Link(s): TMS37F158 |
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