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参数资料
| 型号： | MAX395EAG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH OCTAL SPST 24SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 58 |
| 功能： | 开关 |
| 电路： | 8 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(±)： | 2.7 V ~ 8 V，± 2.7 V ~ 16 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 24-SSOP |
| 包装： | 管件 |
MAX395
Serially Controlled, Low-Voltage,
8-Channel SPST Switch
______________________________________________________________________________________
11
_______________Detailed Description
Basic Operation
The MAX395’s interface can be thought of as an 8-bit
shift register controlled by CS (Figure 2). While CS is
low, input data appearing at DIN is clocked into the
shift register synchronously with SCLK’s rising edge.
The data is an 8-bit word, each bit controlling one of
eight switches in the MAX395 (Table 1). DOUT is the
shift register’s output, with data appearing synchro-
nously with SCLK’s falling edge. Data at DOUT is sim-
ply the input data delayed by eight clock cycles.
When shifting the input data, D7 is the first bit in and
out of the shift register. While shifting data, the switches
remain in their previous configuration. When the eight
bits of data have been shifted in, CS is driven high. This
updates the new switch configuration and inhibits fur-
ther data from entering the shift register. Transitions at
DIN and SCLK have no effect when CS is high, and
DOUT holds the first input bit (D7) at its output.
More or less than eight clock cycles can be entered
during the CS low period. When this happens, the shift
register will contain only the last eight serial data bits,
regardless of when they were entered. On the rising
edge of CS, all the switches will be set to the corre-
sponding states.
The MAX395’s three-wire serial interface is compatible
with SPI, QSPI, and Microwire standards. If inter-
facing with a Motorola processor serial interface, set
CPOL = 0. The MAX395 is considered a slave device
(Figures 2 and 3). Upon power-up, the shift register
contains all zeros, and all switches are off.
The latch that drives the analog switch is updated on
the rising edge of CS, regardless of SCLK’s state. This
meets all the SPI and QSPI requirements.
Daisy Chaining
For a simple interface using several MAX395s, “daisy
chain” the shift registers as shown in Figure 5. The CS
pins of all devices are connected together, and a
stream of data is shifted through the MAX395s in series.
When CS is brought high, all switches are updated
simultaneously. Additional shift registers may be includ-
ed anywhere in series with the MAX395 data chain.
SCLK
DIN
DOUT
COM OUT
CS
tDO
tDH
tDS
tCSH0
tCSS
tCH
tCL
tCSH1
tCSH2
tCLL
tOFF
Figure 1. Timing Diagram
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX395EAG.TG071 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX395EAG+ | 功能描述:模拟开关 IC Serially Controlled 8Ch SPST Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX395EAG+T | 功能描述:模拟开关 IC Serially Controlled 8Ch SPST Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX395EAG-T | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX395ENG | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
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