Datasheet > TDA9951

TDA9951

更新时间： 2024-09-21 06:01:19

品牌	Logo	应用领域
恩智浦 - NXP		转换器
页数	文件大小	规格书
41页	200K
描述
CEC/I2C-bus translator

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TDA9951 数据手册

TDA9951

CEC/I²C-bus translator

Rev. 01 — 7 August 2008

Product data sheet

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 V_DDoperating 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

12 3 4 5 6 7...41

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