参数资料
| 型号： | LTC1393IGN#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 11/12页 |
| 文件大小： | 0K |
| 描述： | IC MULTIPLEXER DUAL 4X1 16SSOP |
| 标准包装： | 100 |
| 功能： | 多路复用器 |
| 电路： | 2 x 4:1 |
| 导通状态电阻： | 400 欧姆 |
| 电压电源： | 双电源 |
| 电压 - 电源，单路/双路(±)： | ±2.7 V ~ 5 V |
| 电流 - 电源： | 10µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SSOP |
| 包装： | 管件 |
8
LTC1380/LTC1393
APPLICATIONS INFORMATION
WU
U
TI I G DIAGRA
U
W
SDA FROM
HOST
SDA FROM
LTC1380/LTC1393
SCL
DO
X
0
A0
A1
0
11
*
*0 FOR LTC1380, 1 FOR LTC1393
X
EN
C2
C1
C0
S
tSU:STA
S
P
tHD:DAT
tSU:DAT
tHD:STA
tr
tf
tLOW
tHIGH
tBUF
tSU:STO
tOFF
tON
tOPEN
ADDRESS BYTE
COMMAND BYTE
Theory of Operation
The LTC1380/LTC1393 are analog input multiplexers with
an SMBus digital interface. The LTC1380 is a single-ended
8-to-1 multiplexer; the LTC1393 is a differential 4-to-1
mulitplexer. The LTC1380 operates on either bipolar or
unipolar supplies, the LTC1393 operates on a single
supply. The minimum VCCsupplyfortheLTC1380/LTC1393
is 2.7V. The maximum supply voltage (VCC to VEE for the
LTC1380, VCC for the LTC1393) should not exceed 14V.
The multiplexer switches operate within the entire power
supply range. The LTC1380 VCC and VEE supplies can be
offset such as 2.7V/–11V and 11V/– 3V.
Serial Interface
The LTC1380/LTC1393 serial interface supports SMBus
send byte protocol as shown below with two interface
signals, SCL and SDA.
A send byte protocol is initiated by the SMBus host with a
start bit followed by a 7-bit address code and a write bit.
Each slave compares the address code with its address.
The send byte write bit is Low. The selected slaves then
reply with an acknowledge bit by pulling the SDA line Low.
Next, the host sends an 8-bit command byte. When the
selected slave receives the whole command byte, it ac-
knowledges and retains the command byte in the shift
register. The host can terminate the serial transfer with a
stop bit or communicate with another slave device with a
repeat start. When a repeat start occurs but the slave is not
selected, the command byte data is kept in the shift
register but the multiplexer control is not updated. The
multiplexer control latches the new command from the
shift register on the first stop bit after a successful com-
mand byte transfer. This allows the host to synchronize
several slave devices with a single stop bit. A1 and A0
select one of the four possible LTC1380/LTC1393 ad-
dresses as shown in Table 1. This allows up to four similar
devices to share the same SMBus, expanding the multi-
plexer to 32 single-ended channels with the LTC1380; 16
differential channels with the LTC1393. The first stop bit
after a successful send byte transfer will latch in the
multiplexer control bits (EN, C2, C1 and C0) and initiate a
break-before-make sequence.
S
10010
A1 A0 W
AXXXX
EN C2 C1 C0
AP
LTC1380 Send Byte Protocol
S
1001
ADDRESS BYTE
S = SMBus START BIT
P = SMBus STOP BIT (THE FIRST STOP BIT AFTER A SUCCESSFUL COMMAND BYTE
UPDATES THE MULTIPLEXER CONTROL LATCH)
A = ACKNOWLEDGE BIT FROM LTC1380/LTC1393
W = WRITE COMMAND BIT
A1, A0 = ADDRESS BITS
EN, C2, C1, C0 = MULTIPLEXER CONTROL BITS
1
A1 A0 W
AXXXX
EN C2 C1 C0
AP
LTC1393 Send Byte Protocol
COMMAND BYTE
相关PDF资料 |
PDF描述 |
|---|---|
| LTC1480IS8#TRPBF | IC TXRX 3.3V RS485 LOWPWR 8-SOIC |
| LTC1481IS8#TRPBF | IC TXRX RS485 LOPWR W/SHTDN8SOIC |
| LTC1483IS8#TRPBF | IC TXRX RS485 LOW EMI LOPWR8SOIC |
| LTC1485IS8#TRPBF | IC TXRX DIFFERNTIAL BUS 8-SOIC |
| LTC1487CS8#TRPBF | IC TXRX RS485 LOW EMI LOPWR8SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1393IS | 功能描述:IC MULTIPLEXER DUAL 4X1 16SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 其它有关文件:STG4159 View All Specifications 标准包装:5,000 系列:- 功能:开关 电路:1 x SPDT 导通状态电阻:300 毫欧 电压电源:双电源 电压 - 电源，单路/双路(±):±1.65 V ~ 4.8 V 电流 - 电源:50nA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:7-WFBGA，FCBGA 供应商设备封装:7-覆晶 包装:带卷 (TR) |
| LTC1393IS#PBF | 功能描述:IC MULTIPLEXER DUAL 4X1 16SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 其它有关文件:STG4159 View All Specifications 标准包装:5,000 系列:- 功能:开关 电路:1 x SPDT 导通状态电阻:300 毫欧 电压电源:双电源 电压 - 电源，单路/双路(±):±1.65 V ~ 4.8 V 电流 - 电源:50nA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:7-WFBGA，FCBGA 供应商设备封装:7-覆晶 包装:带卷 (TR) |
| LTC1393IS#TR | 功能描述:IC MULTIPLEXER DUAL 4X1 16SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 其它有关文件:STG4159 View All Specifications 标准包装:5,000 系列:- 功能:开关 电路:1 x SPDT 导通状态电阻:300 毫欧 电压电源:双电源 电压 - 电源，单路/双路(±):±1.65 V ~ 4.8 V 电流 - 电源:50nA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:7-WFBGA，FCBGA 供应商设备封装:7-覆晶 包装:带卷 (TR) |
| LTC1393IS#TRPBF | 功能描述:IC MULTIPLEXER DUAL 4X1 16SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 标准包装:48 系列:- 功能:开关 电路:4 x SPST - NO 导通状态电阻:100 欧姆 电压电源:单/双电源 电压 - 电源，单路/双路(±):2 V ~ 12 V，±2 V ~ 6 V 电流 - 电源:50nA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:管件 |
| LTC14 | 制造商:3M Electronic Products Division 功能描述:14 way professional IC test clip,0.3in |
发布紧急采购，3分钟左右您将得到回复。