ST7LNB1Y0 datasheet(1/36 Pages) STMICROELECTRONICS

No de pièce	ST7LNB1Y0

Description	DiSEqC??slave microcontroller for SaTCR based LNBs and switchers

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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July 2007

Rev 8

1/36

1

ST7LNB1Y0

DiSEqC™ slave microcontroller

for SaTCR based LNBs and switchers

Features

■

Clock, reset and supply management

– Reduced power consumption

– Safe power on/off management

by low voltage detector (LVD)

– Internal 8 MHz oscillator

■

Communication interface

– Two DiSEqCTM communication interfaces

–Four I2C communication interfaces

■

I/O ports

– 4 output pins for control of a legacy matrix

Description

The ST7LNB1Y0 is an 8-bit microcontroller

dedicated to DiSEqC slave operation in SaTCR

based LNBs (low-noise blocks) and switchers.

Figure 1.

Block diagram

SO16 narrow

8-BIT CORE

ALU

RESET

DRX2

8 MHz. RC OSC

Internal

CLOCK

CONTROL

SDA1

VSS

POWER

SUPPLY

LVD/AVD

VDD

I2C 1

SCL1

DRX1

SDA2

I2C 2

SCL2

SDA3 / MAT2

I2C 3 /

SCL3 / MAT1

SDA4 / MAT4

I2C 4 /

SCL4 / MAT3

13/18 V & 22 kHz

DiSEqC Interface

PARAMETER

DTX

Detector

EEPROM

LEGACY MATRIX

CONTROL

Table 1.

Device summary

Features

Part number: ST7LNB1Y0M6

Packages

SO16 narrow

Peripherals

DiSEqC communication interface, 22 kHz tone detector, 13/18 V detector

Operating voltage

4.5 to 5.5 V

Temperature range

-40 to +85 °C

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