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參數(shù)資料
| 型號(hào)： | PCA9558 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit I2C and SMBus I/O port with 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM and 2 k bit EEPROM |
| 中文描述： | 8位I2C和SMBus I / O與5位multiplexed/1-bit端口鎖存6位I2C EEPROM及2度位EEPROM |
| 文件頁數(shù)： | 5/18頁 |
| 文件大?。?/td> | 131K |
| 代理商： | PCA9558 |
Philips Semiconductors
8-bit I
2
C and SMBus I/O port with 5-bit multiplexed/1-bit
latched 6-bit I
2
C EEPROM and 2 k bit EEPROM
Product data
PCA9558
2002 May 24
5
I
2
C INTERFACE
Communicating with this device is initiated by sending a valid address on the I
2
C bus. The address format (see FIgure 1) has 6 fixed bits and
one user-programmable bits followed by a 1-bit read/write value which determines the direction of the data transfer.
SW00615
MSB
LSB
1
1
1
A0
R/W#
1
0
0
Figure 1. I
2
C Address Byte
Following the address and acknowledge bit are 8 data bits which, depending on the read/write bit in the address, will read data from or write
data to the EEPROM. Data will be written to the register if the read/write bit is logic 0 and the WP input is logic 0. Data will be read from the
register if the bit is logic 1. The four high-order bits are latched outputs, while the four low order bits are multiplexed outputs (Figure 3).
NOTE:
1. To ensure data integrity, the EEPROM must be internally write protected when V
CC
to the I
2
C bus is powered down or V
CC
to the component
is dropped below normal operating levels.
SW00634
MSB
LSB
MSB LSB
0000 0001
0000 0011
0000 0100
0000 0110
0000 0111
0000 1000
0000 1001
0000 1010
0000 1011
0000 1100
0000 1101
0000 1110
0000 1111
0001 0000
0001 0001
0001 0010
0001 0011
to
1111 1111
Write to 256EE via I
2
C
Read from 256EE via I
2
C
Write to 6bitEE via I
2
C
Read from 6bitEE via I
2
C
Read IP (Input Port) Register via I
2
C
Read/Write OP (Output Port) Register via I
2
C
Read/Write PI (Polarity Inversion) Register via I
2
C
Read/Write IOC (Input/Output Configuration Register via I
2
C
Read/Write MUXCNTRL (Mux Control) Register via I
C
Read MUXIN values via I
C
Reserved
Reserved
Read 256EE and Write OP Register
Read 256EE and Write PI Register
Read 256EE and Write IOC Register
Read IP Register and Write to 256EE
Reserved
Reserved
Figure 2. Command Byte
0
0
Non_muxed
Data
SW00456
MSB
LSB
Mux
Data E
Mux
Data D
Mux
Data C
Mux
Data B
Mux
Data A
Figure 3. I
2
C MUX_OUT Data Byte
0
0
0
SW00528
MSB
LSB
MUX_IN E
MUX_IN D
MUX_IN C
MUX_IN B
MUX_IN A
Figure 4. I
2
C MUX_IN Data Byte
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| PCA9558PW | 功能描述:接口-I/O擴(kuò)展器 5BIT MP/1-BITL 6BIT I2C EEPROM RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9558PW,112 | 功能描述:接口-I/O擴(kuò)展器 5BIT MP/1-BITL 6BIT RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9558PW,118 | 功能描述:接口-I/O擴(kuò)展器 5BIT MP/1-BITL 6BIT RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9558PW-T | 功能描述:接口-I/O擴(kuò)展器 5BIT MP/1-BITL 6BIT I2C EEPROM RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9559 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:5-bit multiplexed/1-bit latched 6-bit I2C EEPROM |
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