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参数资料
| 型号： | LMH6580VSX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 多路复用及模拟开关 |
| 英文描述： | 8-CHANNEL, CROSS POINT SWITCH, PQFP48 |
| 封装： | TQFP-48 |
| 文件页数： | 13/24页 |
| 文件大小： | 693K |
| 代理商： | LMH6580VSX |
Serial Mode Data Frame (First Two Words)
Output 0
Output 1
Input Address
On = 0
Input Address
On = 0
LSB
MSB
Off = 1
LSB
Off = 1
0
1
2
3
4
5
6
7
Off = TRI-STATE, Bit 0 is first bit clocked into device.
Serial Mode Data Frame (Continued)
Output 2
Output 3
Input Address
On = 0
Input Address
On = 0
LSB
MSB
Off = 1
LSB
MSB
Off = 1
8
9
10
11
12
13
14
15
ADDRESSED PROGRAMMING MODE
Addressed programming mode makes it possible to change
only one output register at a time. To utilize this mode the
mode pin must be High. All other pins function the same as
in serial programming mode except that the word clocked in
is 5 bits and is directed only at the output specified. In ad-
dressed mode the data format is shown below in the table
titled Addressed Mode Word Format.
Also illustrated is the timing relationships for the digital pins
in the Timing Diagram for Addressed Mode shown below. It
is important to note that all the pin timing relationships are
important, not just the data and clock pins. One example is
that the Chip Select pin (CS) must transition low before the
first rising edge of the clock signal. This allows the internal
timing circuits to synchronize to allow data to be accepted on
the next falling edge. The chip select pin must then transition
high after the final data bit has been clocked in and before
another clock signal positive edge occurs to prevent invalid
data from being clocked into the chip. Also, in addressed
mode is it necessary for the clock signal to make a low to high
transition after the chip select pin has been brought high. If
there is not a low to high transition of the clock after the chip
select pin goes high subsequent data wil not be loaded into
the chip properly. The configure (CFG) pin timing is not criti-
cal, but it does need to be kept low until all data has been
shifted into the crosspoint registers.
30007210
Timing Diagram for Addressed Mode
www.national.com
20
LMH6580/LMH6581
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LMH6581 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:8x4 500MHz Analog Crosspoint Switch, Gain of 1, Gain of 2 |
| LMH6581B E WAF | 制造商:Texas Instruments 功能描述: |
| LMH6581EVAL | 功能描述:BOARD EVALUATION FOR LMH6581 RoHS:否 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板 |
| LMH6581VS | 制造商:Texas Instruments 功能描述: |
| LMH6581VS/NOPB | 功能描述:IC CROSSPOINT SWITCH 8X4 48TQFP 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:- 产品培训模块:Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:- 电路:2 x SPST 导通状态电阻:20 欧姆 电压电源:单电源 电压 - 电源，单路/双路(±):3 V ~ 5.5 V 电流 - 电源:4.1mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:带卷 (TR) |
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