CH455H中文资料PDF规格书
CH455H规格书详情
2. Features
● Set display current drive layer internally, the current of segment is no less than 25mA, the
current of word is no less than 160mA.
● Display scan control dynamically, support 8×4 or 7×4, directly drive four bits number LED or
thirty two LEDs.
● Internal limit current, set eight level light control via space percentage.
● Set 28-key keyboard control, based on 7×4 matrix scan..
● Set pull-down resistor internal while key-press, glitter removable.
● Supply keyboard interrupt active with low-level, and supply key-press release token to check
the key is pressed or release.
● High speed two wires serial interface, the speed of clock varies from 0 to 4MHz, compatible
with I2C bus, save pins.
● Set turn on power to reset, 2.7V~5V power.
● Support low exhaust sleep mode to save energy, awoke via press key or command.
● Set clock surge circuit internally, the external clock or surge equipment is not necessary, resister
to be disturbed.
● Supply DIP18, SOP18 and SOP16 package without lead, compatible with RoHS, the function
and pins are part compatible with CH450 .
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
WCH/沁恒 |
2022 |
SOP18 |
80000 |
原装现货,OEM渠道,欢迎咨询 |
询价 | ||
WCH |
23+ |
NA |
30080 |
专业电子元器件供应链正迈科技特价代理QQ1304306553 |
询价 | ||
WCH/沁恒 |
22+ |
SOP18 |
354000 |
询价 | |||
WCH/沁恒 |
2023+ |
SOP148 |
700000 |
柒号芯城跟原厂的距离只有0.07公分 |
询价 | ||
WCH |
22+ |
SOP-18 |
12245 |
现货,原厂原装假一罚十! |
询价 | ||
WCH |
21+ |
SOP |
31576 |
原装现货假一赔十 |
询价 | ||
WCH/沁恒 |
23+ |
SOP |
90000 |
只做原厂渠道价格优势可提供技术支持 |
询价 | ||
WCH/沁恒 |
21+ |
SOP |
880000 |
明嘉莱只做原装正品现货 |
询价 | ||
WCH |
21+ |
SOP18 |
5000 |
全新原装现货 价格优势 |
询价 | ||
WCH |
12+ |
SOP18 |
442 |
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询价 |