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參數(shù)資料
| 型號(hào)： | HA456 |
| 廠商： | Intersil Corporation |
| 英文描述： | 120MHz, Low Power, 8 x 8 Video Crosspoint Switch |
| 中文描述： | 120MHz的，低功耗，8 × 8視頻交叉點(diǎn)開關(guān) |
| 文件頁(yè)數(shù)： | 8/15頁(yè) |
| 文件大小： | 158K |
| 代理商： | HA456 |
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8
Figure 2 shows a typical application of the HA456 with
HFA1412 quad, gain-of-two buffers at the outputs to drive
75
loads. This application shows the HA456 digital-switch
control interface set up in the 7-bit parallel mode. The HA456
uses 7 data lines and 3 control lines (WR, CE and LATCH).
The input/output information is presented to the chip at A2:0
and D3:0 by a parallel printer port. The data is stored in the
Master Registers on the rising edge of WR. When the
LATCH line goes high, the switch configuration loads into the
Slave Registers, and all 8 outputs reconfigure at the same
time. Each 7-bit word updates only one output at a time. If
several outputs are to be updated, the data is individually
loaded into the Master Registers. Then, a single LATCH
pulse can reconfigure all channels simultaneously.
An IBM compatible PC loads the programming data into the
HA456 via its parallel port (LPT1) using a simple BASIC
program.
TABLE 1. PARALLEL INTERFACE COMMANDS
A2:0
D3:0
ACTION
Selects
Output
Being
Programmed
0000 to 0111
Connect the input defined by D3:0 to the output selected by A2:0. Doesn’t enable a disabled output.
1000
Connect the output selected by A2:0 to GND. Doesn’t enable a disabled output.
1011
Asynchronously disable the single output selected by A2:0, and leave the Master Register unchanged.
1100
Asynchronously enable the single output selected by A2:0, and leave the Master Register unchanged.
Address
Inputs are
Irrelevant for
These
Functions
1101
Asynchronously disable all outputs, and leave the Master Register unchanged.
1110
Asynchronously enable all outputs, and leave the Master Register unchanged.
1111
Send a Software “Latch” pulse to the Slave Register to load it from the Master Register, iff, the LATCH input=1.
If the LATCH input=0, then this command is a NOP. The Master Register is unchanged by this command.
1001 or 1010
Do not use these codes in the parallel programming mode. These codes are for serial programming only.
TABLE 2. SERIAL INTERFACE COMMANDS
D3:0
ACTION
0000 to 0111
Connect the output to the input channel defined by D3:0. Doesn’t enable a disabled output.
1000
Connect the output to GND. Doesn’t enable a disabled output.
1001
Enable the output and connect it to GND. The default power-up state is all outputs disabled, so use this code to enable
outputs after power is applied, but before programming the switch configuration.
1010
Disable the output. The output is no longer associated with any input channel; the desired input must be redefined after
reenabling the output.
1011 to 1111
Do not use these codes in the serial programming mode.
TABLE 3. DEFINITION OF DATA AND ADDRESS BIT FUNCTIONS
SER/PAR
D3
D2
D1
D0
A2:0
COMMENT
H
X
X
Serial
Data
Output
Serial
Data
Input
X
32-Bit Serial Mode
L
H
Parallel Data
Input
Parallel Data
Input
Parallel Data
Input
Output
Address
Parallel Mode; D2:0 define the
command to be executed
L
L
Parallel Data
Input
Parallel Data
Input
Parallel Data
Input
Output
Address
Parallel Mode; D2:0 define the
Input Channel
HA456
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA456_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:120MHz, Low Power, 8x8 Video Crosspoint Switch |
| HA456CM | 功能描述:IC VIDEO CROSSPOINT SWIT 44PLCC RoHS:否 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:- 標(biāo)準(zhǔn)包裝:48 系列:- 功能:開關(guān) 電路:4 x SPST - NO 導(dǎo)通狀態(tài)電阻:100 歐姆 電壓電源:單/雙電源 電壓 - 電源，單路/雙路(±):2 V ~ 12 V，±2 V ~ 6 V 電流 - 電源:50nA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件 |
| HA456CMZ | 功能描述:模擬和數(shù)字交叉點(diǎn) IC W/ANNEAL XPOINT 8X8 VID GAIN+1 44PLCC RoHS:否 制造商:Micrel 配置:2 x 2 封裝 / 箱體:MLF-16 數(shù)據(jù)速率:10.7 Gbps 輸入電平:CML, LVDS, LVPECL 輸出電平:CML 電源電壓-最大:3.6 V 電源電壓-最小:2.375 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 產(chǎn)品:Digital Crosspoint 封裝:Tube |
| HA456CN | 制造商:Rochester Electronics LLC 功能描述:XPOINT 8X8 VIDEO GAIN+1 44MQFP COM - Bulk |
| HA456CP | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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