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PCA9544ABS中文資料
PCA9544ABS數據手冊規(guī)格書PDF詳情
General description
The PCA9544A is a 1-of-4 bidirectional translating multiplexer, controlled via the I2C-bus. The SCL/SDA upstream pair fans out to four 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. Four interrupt inputs, INT0 to INT3, one for each of the SCx/SDx downstream pairs, are provided. One interrupt output, INT, which acts as an AND of the four interrupt inputs, is provided.
A power-on reset function puts the registers in their default state and initializes the I2C-bus state machine with no channels selected.
The pass gates of the multiplexer are constructed such that the VDD pin can be used to limit the maximum high voltage which is passed by the PCA9544A. This allows the use of different bus voltages on each SCx/SDx pair, so that 1.8 V, 2.5 V or 3.3 V parts can communicate with 5 V parts without any additional protection. External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 5 V tolerant.
Features and benefits
■ 1-of-4 bidirectional translating multiplexer
■ I2C-bus interface logic; compatible with SMBus
■ 4 active LOW interrupt inputs
■ Active LOW interrupt output
■ 3 address pins allowing up to 8 devices on the I2C-bus
■ Channel selection via I2C-bus
■ Power-up with all multiplexer channels deselected
■ Low Ron switches
■ Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses
■ No glitch on power-up
■ Supports hot insertion
■ Low standby current
■ Operating power supply voltage range of 2.3 V to 5.5 V
■ 5 V tolerant Inputs
■ 0 Hz to 400 kHz clock frequency
■ ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101
■ Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
■ Three packages offered: SO20, TSSOP20 and HVQFN20
PCA9544ABS產品屬性
- 類型
描述
- 型號
PCA9544ABS
- 功能描述
多路器開關 IC 4-CH I2C MUX W/INTERRUPT
- RoHS
否
- 制造商
Texas Instruments
- 通道數量
1
- 開關數量
4
- 開啟電阻(最大值)
7 Ohms
- 傳播延遲時間
0.25 ns
- 工作電源電壓
2.3 V to 3.6 V
- 最大工作溫度
+ 85 C
- 安裝風格
SMD/SMT
- 封裝/箱體
UQFN-16
供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
---|---|---|---|---|---|---|---|
恩XP |
24+ |
標準封裝 |
7403 |
全新原裝正品/價格優(yōu)惠/質量保障 |
|||
恩XP |
25+ |
HVQFN20 |
32360 |
NXP/恩智浦全新特價PCA9544ABS即刻詢購立享優(yōu)惠#長期有貨 |
|||
恩XP |
2024+ |
N/A |
70000 |
柒號只做原裝 現貨價秒殺全網 |
|||
恩XP |
24+ |
N/A |
18877 |
原廠可訂貨,技術支持,直接渠道??珊灡9┖贤?/div> |
|||
恩XP |
23+ |
N/A |
12000 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
|||
恩XP |
22+ |
20HVQFN |
9000 |
原廠渠道,現貨配單 |
|||
恩XP |
22+ |
QFN20 |
3000 |
原裝正品,支持實單 |
|||
恩XP |
24+ |
HVQFN20 |
15000 |
原裝原標原盒 給價就出 全網最低 |
|||
恩XP |
17+ |
QFN |
6200 |
100%原裝正品現貨 |
|||
恩XP |
2016+ |
HVQFN20 |
4330 |
公司只做原裝,假一罰十,可開17%增值稅發(fā)票! |
PCA9544ABS,118 價格
參考價格:¥5.7361
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2019-2-13
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