- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄363903 > W83L177R (WINBOND ELECTRONICS CORP) 100MHZ 2-DIMM SDRAM BUFFER FOR NOTEBOOK PDF資料下載
參數(shù)資料
| 型號： | W83L177R |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 100MHZ 2-DIMM SDRAM BUFFER FOR NOTEBOOK |
| 中文描述： | LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO28 |
| 封裝： | 0.209 INCH, SOP-28 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大小： | 108K |
| 代理商： | W83L177R |
W83L177R
PRELIMINARY
Publication Release Date: Mar. 1999
Revision 0.10
- 4 -
6.0 FUNTION DESCRIPTION
6.1 2-WIRE I
2
C CONTROL INTERFACE
The clock generator is a slave I2C component which can be read back the data stored in the latches
for verification. All proceeding bytes must be sent to change one of the control bytes. The 2-wire
control interface allows each clock output individually enabled or disabled. On power up, the
W83L177R initializes with default register settings, and then it
o
ptional to use the 2-wire control
interface.
The SDATA signal only changes when the SDCLK signal is low, and is stable when SDCLK is high
during normal data transfer. There are only two exceptions. One is a high-to-low transition on
SDATA while SDCLK is high used to indicate the beginning of a data transfer cycle. The other is a
low-to-high transition on SDATA while SDCLK is high used to indicate the end of a data transfer
cycle. Data is always sent as complete 8-bit bytes followed by an acknowledge generated.
Byte writing starts with a start condition followed by 7-bit slave address and [1101 0010], command
code checking [0000 0000], and byte count checking. After successful reception of each byte, an
acknowledge (low) on the SDATA wire will be generated by the clock chip. Controller can start to
write to internal I
2
C registers after the string of data. The sequence order is as follows:
Bytes sequence order for I
2
C controller :
Clock Address
A(6:0) & R/W
Ack
8 bits dummy
Command code
Ack
8 bits dummy
Byte count
Ack
Byte0,1,2...
until Stop
Set R/W to 1 when read back the data sequence is as follows :
Clock Address
A(6:0) & R/W
Ack
Byte 0
Ack
Ack
Byte2, 3, 4...
until Stop
Byte 1
6.2 SERIAL CONTROL REGISTERS
The Pin column lists the affected pin number and the @PowerUp column gives the state at true
power up. Registers are set to the values shown only on true power up. "Command Code" byte and
"Byte Count" byte must be sent following the acknowledge of the Address Byte. Although the data
(bits) in these two bytes are considered "don't care", they must be sent and will be acknowledge.
After that, the below described sequence (Register 0, Register 1, Register 2, ....) will be valid and
acknowledged.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W83L518D | Integrated Media Reader |
| W83L784AR | WINBOND H/W MONITORING IC |
| W83L784 | Monitoring IC |
| W83L784R | Monitoring IC |
| W86C450 | UNIVERSAL ASYNCHRONOUS RECEIVER /TRANSMITTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W83L197R-16 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:2-CHIP 100MHZ CLOCK FOR BX NOTEBOOK |
| W83L351 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:ExpressCard⑩ Power Interface Switch |
| W83L351G | 功能描述:IC POWER INTERFACE SW 20TSSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:* 標(biāo)準(zhǔn)包裝:3,000 系列:- 應(yīng)用:PDA，便攜式音頻/視頻，智能電話 接口:I²C，2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2 |
| W83L351YCG | 功能描述:IC POWER INTERFACE SW 20WQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:* 標(biāo)準(zhǔn)包裝:3,000 系列:- 應(yīng)用:PDA，便攜式音頻/視頻，智能電話 接口:I²C，2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2 |
| W83L351YCG TR | 功能描述:IC POWER INTERFACE SW 20WQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:* 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。