參數(shù)資料
型號(hào): ICS854S54AYI-08LF
廠商: IDT, Integrated Device Technology Inc
文件頁(yè)數(shù): 18/21頁(yè)
文件大?。?/td> 0K
描述: IC CLK BUFF MUX 2:1/1:2 64-TQFP
標(biāo)準(zhǔn)包裝: 160
系列: HiPerClockS™
類型: 扇出緩沖器(分配),多路復(fù)用器
電路數(shù): 8
比率 - 輸入:輸出: 2:1,1:2
差分 - 輸入:輸出: 是/是
輸入: CML,LVDS,LVPECL
輸出: LVDS
頻率 - 最大: 1.3GHz
電源電壓: 3.135 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-TQFP 裸露焊盤
供應(yīng)商設(shè)備封裝: 64-TQFP-EP(10x10)
包裝: 托盤
其它名稱: 854S54AYI-08LF
ICS854S54AYI-08 FEBRUARY 4, 2010
6
2010 Integrated Device Technology, Inc.
ICS854S54I-08 Data Sheet
OCTAL 2:1 AND 1:2 DIFFERENTIAL-TO-LVDS MULTIPLEXER
SECURE I2C INTERFACE - PROTOCOL
The ICS854S54I-08 is a slave-only device and uses the standard I2C
protocol as shown in the below diagrams. The maximum SCLK
frequency is greater than 400kHz which is more than sufficient for
standard I2C clock speeds.
START (ST) – Defined as high-to-low transition on SDA while holding SCLK HIGH.
DATA – Between START and STOP cycles, SDA is synchronous with SCLK.
Data may change only when SCLK is LOW and must be stable when SCLK is HIGH.
ACKNOWLEDGE (AK) – SDA is driven LOW before the SCLK rising edge and held LOW until the SCLK falling edge.
STOP (SP) – defined as low-to-high transition on SDA while holding SCLK HIGH.
Serial Interface – A Write Example
A serial transfer to the ICS854S54I-08 always consists of an
address cycle followed by a single data byte. Any additional data
bytes will not be acknowledged and the ICS854S54I-08 will leave the
data bus HIGH. These extra bits will not be loaded into the serial
control register. Once the Data Byte is loaded and the master
generates a stop condition, the values in the serial control register
are latched into the mux control bit outputs and each mux will switch
into the new state.
SCLK
SDA
START
Valid Data
Acknowledge
STOP
ST
Slave Address: 7 Bits
R/W
AK
1 Bit
Refer to page 5 for address choices based on ADDR_SEl pin setting
1 Bit
Data Byte 0: 8 Bits
AK
SP
MODE_QGx
SEL_QH
MODE_QEx
SEL_QF
MODE_QCx
SEL_QD
MODE_QAx
SEL_QB
1 Bit
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