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參數(shù)資料
| 型號(hào)： | MAX1608-MAX1609 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Octal SMBus-to-Parallel I/O Expanders |
| 中文描述： | 八路的SMBus對(duì)并行I / O擴(kuò)展 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 291K |
| 代理商： | MAX1608-MAX1609 |
data MSB first; therefore, IO7, MASK7, and data 7 bit
correspond to the MSB (first bit of the data byte).
Other Registers
RAP uses the send-byte protocol to resample the
address pins. Do not use read- and write-byte proto-
cols to RAP because data is redirected to NDR1
although the ADD_ pins will be sampled.
SPOR uses the send-byte protocol to resample the
address pins and reset the registers to the POR state.
Do not use read- and write-byte protocols to SPOR
because data is redirected to NDR1 although the func-
tion will be performed.
MFID uses the read-byte protocol to access the ID reg-
ister. Do not use write-byte protocol to MFID because
data is redirected to NDR1.
SMBSUS
(Suspend-Mode) Input
The state of the
SMBSUS
input selects which register
contents (NDR1 or SDR1) are applied to the IO_ pins
and which set of registers are used to mask the inter-
rupts (NDR2, NDR3 or NDR2, SDR3). Driving
SMBSUS
low selects the suspend-mode registers, while driving
SMBSUS
high selects the normal registers. This feature
allows the system to select between two different I/O
M
Octal SMBus-to-Parallel I/O Expanders
_______________________________________________________________________________________
9
SMBCLK
A
B
C
D
E
F
G
H
I
J
K
SMBDATA
t
SU:STA
t
HD:STA
t
LOW
t
HIGH
t
SU:DAT
t
HD:DAT
t
HD:DAT
t
SU:STO
t
BUF
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
L
M
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 CLOCK PULSE
L = STOP CONDITION, DATA EXECUTED BY SLAVE
M = NEW START CONDITION
Figure 3. SMBus Write Timing
SMBCLK
A = START CONDITION
B = MSB OF ADDRESS CLOCKED INTO SLAVE
C = LSB OF ADDRESS CLOCKED INTO SLAVE
D = R/W BIT CLOCKED INTO SLAVE
A
B
C
D
E
F
G
H
I
J
SMBDATA
t
SU:STA
t
HD:STA
t
LOW
t
HIGH
t
SU:DAT
t
HD:DAT
t
SU:DAT
t
SU:STO
t
BUF
K
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 CLOCK PULSE
J = STOP CONDITION
K = NEW START CONDITION
Figure 4. SMBus Read Timing
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| MAX16091UK23OMB+T | 功能描述:監(jiān)控電路 5P Supervisory ICs RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX16091UK31BMA+T | 功能描述:監(jiān)控電路 5P Supervisory ICs RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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