EXTERNAL I2
參數(shù)資料
型號: IDT5V9885TNLGI
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 16/39頁
文件大?。?/td> 0K
描述: IC CLOCK GEN PLL 500MHZ 28VFQFPN
標(biāo)準(zhǔn)包裝: 490
類型: *
PLL: 帶旁路
輸入: LVCMOS,LVTTL
輸出: LVCMOS,LVDS,LVPECL,LVTTL
電路數(shù): 1
比率 - 輸入:輸出: 2:6
差分 - 輸入:輸出: 無/是
頻率 - 最大: 500MHz
除法器/乘法器: 是/無
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 28-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 28-VFQFPN(6x6)
包裝: 托盤
其它名稱: 800-2580
23
INDUSTRIALTEMPERATURERANGE
IDT5V9885T
3.3V EEPROMPROGRAMMABLECLOCKGENERATOR
EXTERNAL I2C INTERFACE CONDITION
PROGWRITE
Writes can continue as long as a Stop condition is not sent and each byte will increment the register address.
PROGREAD
S
Address
R/W
ACK Command Code
Register
Data
P
ACK
7-bits
0
1-bit
8-bits: xxxxxx00
1-bit
8-bits
1-bit
8-bits
1-bit
S
Address
R/W
ACK Command Code
Register
P
ACK
7-bits
0
1-bit
8-bits: xxxxxx00
1-bit
8-bits
1-bit
ACK
8-bits
Data_1
1-bit
Sr Address
R/W
ACK
ID Byte
NACK
7-bits
1
1-bit
8 bits
1-bit
P
ACK
8-bits
Data_2
1-bit
ACK
8-bits
Data_last
1-bit
Figure 3: Progwrite Command Frame
Note: If the expected read command is not from the next higher register to the previous read or write command, then set a known "read" register address
prior to a read operation by issuing the following command:
KEY:
From Master to Slave
From Master to Slave, but can be omitted if followed by the correct sequence
Normally data transfer is terminated by a STOP condition generated by the Master. However, if the Master still wishes to communicate on the bus, it can
generate a repeated START condition, and address another Slave address without first generating a STOP condition.
From Slave to Master
SYMBOLS:
ACK - Acknowledge (SDA LOW)
NACK - Not Acknowledge (SDA HIGH)
Sr - Repeated Start Condition
S - START Condition
P - STOP Condition
12345
The user can ignore the STOP condition above and use a repeated START condition instead, straight after the slave acknowledgement bit (i.e., followed by
the Progread command):
Note: Figure 4b above by itself is the Progread command format. The ID byte for the 5V9885T is 10hex. Each byte recieved increments the register address.
Figure 4a: Prior to Progread Command Set Register Address
Figure 4b: Progread Command Frame
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