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TDA9951 Datasheet(PDF) 1 Page - NXP Semiconductors |
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TDA9951 Datasheet(HTML) 1 Page - NXP Semiconductors |
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1 / 41 page  1. General description The TDA9951 is a single-chip Consumer Electronics Control (CEC) to I2C-bus translator dedicated to the control and interfacing Consumer Electronics products. The built-in processor simplifies Consumer Electronics (CE) product CPU design by managing a range of interfacing and control functions including the CEC protocol, timings and interrupts. Designed as an I2C-bus slave device the TDA9951 enables control of these features to any I2C-bus master device such as the CE host processor. This data sheet describes the I2C-bus interface, together with the control and management features of the TDA9951. The TDA9951 is an enhancement of the TDA9950. 2. Features I CEC support: N Receive and transmit messages using compliant signal free time handling N Up to 16 bytes message length N Multiple logical addresses N Comprehensive arbitration and collision handling I Dedicated processor control of CEC-line and I2C-bus interface utilizing embedded software I I2C-bus interface to host communication in Standard mode (100 kbit/s) and Fast mode (400 kbit/s) I Automatic Idle mode reduces power consumption if no messages are on CEC-line and I2C-bus plus I Managed Standby and Wake-up power modes I Active LOW reset input and on-chip Power-On Reset (POR) enables operation without external reset components I Reset counter and reset glitch circuitry prevents false and incomplete resets I Programmable on-chip retry counter I Controls specific Vacuum Fluorescent Display (VFD) devices and/or up to four LEDs I Decode up to 10 panel switches I Decode infrared protocol RC5, RC5 enlarged and RC6 Mode 0 I Battery operation detection maintains clock and calendar in low power mode I Provides real-time clock features including time-of-day alarm and periodic timer I VDD operating range 3.0 V to 3.6 V I 5 V tolerant input/output pins I On-chip oscillator for a 12 MHz crystal I Schmitt trigger port inputs TDA9951 CEC/I2C-bus translator Rev. 01 — 7 August 2008 Product data sheet |
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