PCA9540中文資料飛利浦數(shù)據(jù)手冊PDF規(guī)格書
PCA9540規(guī)格書詳情
DESCRIPTION
The PCA9540 is a 1-of-2 bi-directional translating multiplexer, controlled via the I2C bus. The SCL/SDA upstream pair fans out to two SCx/SDx downstream pairs, or channels. Only one SCx/SDx channel is selected at a time, determined by the contents of the programmable control register.
The pass gates of the multiplexer are constructed such that the VDD pin can be used to limit the maximum high voltage which will be passed by the PCA9540. This allows the use of different bus voltages on each SCx/SDx pair, so that 3.3 V parts can communicate with 5 V parts without any additional protection. External pull-up resistors can pull the bus up to the desired voltage level for this channel.
FEATURES
? 1-of-2 bi-directional translating multiplexer
? Channel selection via I2C bus
? Operating supply voltage 2.5 to 3.6 V
? Operating temperature range 0°C to 70°C
? Power-up with all multiplexer channels deselected
? Low on resistance
產(chǎn)品屬性
- 型號：
PCA9540
- 功能描述：
編碼器、解碼器、復用器和解復用器 I2C MUX 2CH BI-DIR
- RoHS：
否
- 制造商：
Micrel
- 產(chǎn)品：
Multiplexers
- 邏輯系列：
CMOS
- 線路數(shù)量（輸入/輸出）：
2/12
- 傳播延遲時間：
350 ps, 400 ps
- 電源電壓-最大：
2.625 V, 3.6 V
- 電源電壓-最小：
2.375 V, 3 V
- 最大工作溫度：
+ 85 C
- 安裝風格：
SMD/SMT
- 封裝/箱體：
QFN-44
- 封裝：
Tray
| 供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
PHI |
24+ |
SOP-3.9-8P |
4897 |
絕對原裝!現(xiàn)貨熱賣! |
詢價 | ||
恩XP |
22+ |
MSOP8 |
21176 |
原裝正品現(xiàn)貨 |
詢價 | ||
PCA |
24+ |
SOP-8 |
6980 |
原裝現(xiàn)貨,可開13%稅票 |
詢價 | ||
0 |
詢價 | ||||||
PHI |
24+ |
SOP8 |
22055 |
鄭重承諾只做原裝進口現(xiàn)貨 |
詢價 | ||
PHI |
25+23+ |
MSOP8 |
33528 |
絕對原裝正品全新進口深圳現(xiàn)貨 |
詢價 | ||
PHI |
17+ |
TSSOP8 |
6200 |
100%原裝正品現(xiàn)貨 |
詢價 | ||
PHI |
24+ |
SMD8 |
85 |
現(xiàn)貨供應 |
詢價 | ||
恩XP |
23+ |
SOP-8 |
32732 |
原裝正品代理渠道價格優(yōu)勢 |
詢價 | ||
恩XP |
2020 |
SOP8 |
3300 |
絕對全新原裝現(xiàn)貨,歡迎來電查詢 |
詢價 |
