- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367809 > PCA9540B (NXP Semiconductors N.V.) 2-channel I2C multiplexer PDF資料下載
參數(shù)資料
| 型號： | PCA9540B |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 2-channel I2C multiplexer |
| 中文描述： | 2通道的I2C多路復用器 |
| 文件頁數(shù)： | 2/14頁 |
| 文件大?。?/td> | 138K |
| 代理商： | PCA9540B |
Philips Semiconductors
Product data sheet
PCA9540B
2-channel I
2
C multiplexer
2
2004 Sep 29
FEATURES
1-of-2 bi-directional translating multiplexer
I
2
C interface logic; compatible with SMBus standards
Channel selection via I
2
C-bus
Power up with all multiplexer channels deselected
Low Rds
ON
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 stand-by current
Operating power supply voltage range of 2.3 V to 5.5 V
5 V tolerant Inputs
0 to 400 kHz clock frequency
ESD protection exceeds 2000 V HBM per JESD22-A114,
200 V MM per JESD22-A115 and 1000 V per JESD22-C101
Latch-up testing is done to JESDEC Standard JESD78 which
exceeds 100 mA
Packages Offered: SO8, TSSOP8
DESCRIPTION
The PCA9540B is a 1-of-2 bi-directional translating multiplexer,
controlled via the I
2
C-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.
A power-on reset function puts the registers in their default state and
initializes the I
2
C state machine with no channels selected.
The pass gates of the multiplexer are constructed such that the V
DD
pin can be used to limit the maximum high voltage which will be
passed by the PCA9540B. This allows the use of different bus
voltages on each SCx/SDx pair, so that 1.8 V, 2.5, or 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. All I/O pins are 5 V tolerant.
The PCA9540B has replaced the PCA9540 and all designs must
migrate to the PCA9540B. PCA9540B samples can be requested
from www.philipslogic.com/products/I2Cmuxes/.
PIN CONFIGURATION
1
2
3
4
5
6
7
8
SCL
SDA
V
DD
SD0
SC1
SD1
SC0
V
SS
SW00491
Figure 1. Pin configuration
PIN DESCRIPTION
PIN
NUMBER
1
SYMBOL
FUNCTION
SCL
Serial clock line
2
SDA
Serial data line
3
V
DD
SD0
Supply voltage
4
Serial data 0
5
SC0
Serial clock 0
6
V
SS
SD1
Supply ground
7
Serial data 1
8
SC1
Serial clock 1
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
–40
°
C to +85
°
C
–40
°
C to +85
°
C
ORDER CODE
TOPSIDE MARK
DRAWING NUMBER
8-Pin Plastic SO
PCA9540BD
PA9540B
SOT96-1
8-Pin Plastic TSSOP
Standard packing quantities and other packaging data are available at www.standardproducts.philips.com/packaging.
PCA9540BDP
9540B
SOT505-1
相關PDF資料 |
PDF描述 |
|---|---|
| PCA9540PWDH | 2-channel I2C multiplexer |
| PCA9540 | 2-channel I2C multiplexer |
| PCA9540D | 2-channel I2C multiplexer |
| PCA9541 | 2-to-1 I2C master selector with interrupt logic and reset |
| PCA9542 | 2-channel IIC multiplexer and interrupt controller(2通道IIC多路復用器和中斷控制器) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9540BD | 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 位數(shù): 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 |
| PCA9540BD,112 | 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 位數(shù): 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 |
| PCA9540BD,118 | 功能描述:編碼器、解碼器、復用器和解復用器 2-CHANNEL I2C MULTIPLEXER RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 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 |
| PCA9540BD112 | 制造商:NXP Semiconductors 功能描述:IC 2CH I2C BUS MULTIPLEXER 5.5V SOIC-8 |
| PCA9540BDP | 制造商:NXP Semiconductors 功能描述:IC MUX 2CH I2C 8TSSOP 制造商:NXP Semiconductors 功能描述:IC, MUX, 2CH, I2C, 8TSSOP 制造商:NXP Semiconductors 功能描述:IC, MUX, 2CH, I2C, 8TSSOP; No. of Circuits:1; Supply Current:20A; On State Resistance Max:31ohm; Supply Voltage Range:2.3V to 5.5V; Analogue Switch Case Style:TSSOP; No. of Pins:8; Multiplexer Configuration:2:1; Operating ;RoHS Compliant: Yes |
發(fā)布緊急采購，3分鐘左右您將得到回復。