- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382993 > G768B (Electronic Theatre Controls, Inc.) Remote/Local Temperature Sensor, 2 Fan Controllers with SMBus Serial Interface and System Reset Circuit PDF資料下載
參數(shù)資料
| 型號： | G768B |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Remote/Local Temperature Sensor, 2 Fan Controllers with SMBus Serial Interface and System Reset Circuit |
| 中文描述： | 遠程/本地溫度傳感器，2個風扇，帶有SMBus串行接口和系統(tǒng)復位電路控制器 |
| 文件頁數(shù)： | 14/15頁 |
| 文件大?。?/td> | 370K |
| 代理商： | G768B |
Ver: 1.3
Oct 28, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
14
G768B
Global Mixed-mode Technology Inc.
Slave Addresses
The G768B appears to the SMBus as one device hav-
ing a common address for all the ADC and fan control
channels. The device address is fixed to be 7Ah for
write and 7Bh for read.
The G768B also responds to the SMBus Alert Response
slave address (see the Alert Response Address section).
POR and UVLO
The G768B has a volatile memory. To prevent am-
biguous power-supply conditions from corrupting the
data in memory and causing erratic behavior, a POR
voltage detector monitors Vcc and clears the memory
if Vcc falls below 1.7V (typical, see Electrical Charac-
teristics table). When power is first applied and Vcc
rises above 1.75V (typical), the logic blocks begin op-
erating, although reads and writes at V
CC
levels below
3V are not recommended. A second Vcc comparator,
the ADC UVLO comparator, prevents the ADC from
converting until there is sufficient headroom (Vcc =
2.8V typical).
Power-Up Defaults:
Interrupt latch is cleared.
ADC begins auto /converting at a 0.25Hz rate.
Command byte is set to 00h to facilitate quick re-
mote Receive Byte queries.
THIGH and TLOW registers are set to max and
min limits, respectively.
Figure 6. SMBus Write Timing Diagram
A = start condition
B = MSB of address clocked into slave
C = LSB of address clocked into slave
D = R / W bit clocked into slave
E = slave pulls SMBData line low
F = acknowledge bit clocked into master
G = MSB of data clocked into slave
H = LSB of data clocked into slave
I = slave pulls SMBDATA line low
J = acknowledge clocked into master
K = acknowledge clocked pulse
L = stop condition data executed by slave
M = new start condition
Figure 7. SMBus Read Timing Diagram
A = start condition
B = MSB of address clocked into slave
C = LSB of address clocked into slave
D = R / W bit clocked into slave
E = slave pulls SMBDATA line low
F =acknowledge bit clocked into master
G = MSB of data clocked into master
H = LSB of data clocked into master
I = acknowledge clocked pulse
J = stop condition
K= new start condition
SMBCLK
SMBDATA
A
B
C
D
E F
G
H
I
J
K
L
M
t
SU:STA
t
HD:STA
t
SU:DAT
t
HD:DAT
t
SU:STO
t
BUF
t
LOW
t
HIGH
SMBCLK
SMBDATA
A
B
C
D
E F
G
H
I
J
K
t
SU:STA
t
HD:STA
t
SU:DAT
t
SU:STO
t
BUF
t
LOW
t
HIGH
相關PDF資料 |
PDF描述 |
|---|---|
| G768 | Remote/Local Temperature Sensor, 2 Fan Controllers with SMBus Serial Interface and System Reset Circuit |
| G775-0U | Single Phase Full Wave Bridge Retifiers |
| G775-1U | Single Phase Full Wave Bridge Retifiers |
| G775-2U | Single Phase Full Wave Bridge Retifiers |
| G775-3U | Single Phase Full Wave Bridge Retifiers |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| G768D | 制造商:GMT 制造商全稱:Global Mixed-mode Technology Inc 功能描述:Two Remote Temperature Sensors and One Fan Controller with SMBus Serial Interface and System Reset Circuit |
| G770127-1 REV D | 制造商:Amphenol Corporation 功能描述:AMPHENOL CANADA - Rail/Tube |
| G770140-1 REV E | 制造商:Amphenol Corporation 功能描述:AMPHENOL CANADA - Rail/Tube |
| G77015 | 制造商:Glenair Inc 功能描述:1 REPLACEMENT PAD for TG69P |
| G771 | 制造商:GMT 制造商全稱:Global Mixed-mode Technology Inc 功能描述:Two Remote Temperature Sensors with SMBus Serial Interface and System Reset Circuit |
發(fā)布緊急采購，3分鐘左右您將得到回復。