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| 型號： | PCA9500 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | DRAM |
| 英文描述： | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| 中文描述： | 該CAT24FC02是一個2 KB的EEPROM的國內(nèi)256個8位每字舉辦的串行CMOS |
| 文件頁數(shù)： | 5/23頁 |
| 文件大?。?/td> | 169K |
| 代理商： | PCA9500 |
Philips Semiconductors
Product data sheet
PCA9500
8-bit I
2
C and SMBus I/O port with 2-kbit EEPROM
2004 Sep 30
5
CONTROL REGISTER
The PCA9500 contains a single 8-bit register called the Control Register, which can be written and read via the I
2
C-bus. This register is sent
after a successful acknowledgment of the slave address.
It contains the I/O operation information.
I/O OPERATIONS (see also Figure 4)
Each of the PCA9500’s eight I/Os can be independently used as an input or output. Output data is transmitted to the port by the I/O WRITE
mode (see Figure 6). Input I/O data is transferred from the port to the microcontroller by the READ mode (See Figure 7).
S
0
1
0
0
A2
A1
A0
0
A
DATA 1
A
DATA 2
A
SDA
SCL
tpv
1
2
3
4
5
6
7
8
tpv
DATA 2 VALID
DATA 1 VALID
SW00548
ACKNOWLEDGE
FROM SLAVE
R/W
START CONDITION
ACKNOWLEDGE
FROM SLAVE
ACKNOWLEDGE
FROM SLAVE
SLAVE ADDRESS (I/O EXPANDER)
DATA TO PORT
DATA TO PORT
WRITE TO
PORT
DATA OUT
FROM PORT
Figure 6. I/O WRITE mode (output)
S
0
1
0
0
A2
A1
A0
1
A
DATA 1
A
DATA 4
1
SDA
tph
tps
DATA 4
P
DATA 2
DATA 3
SW00549
SLAVE ADDRESS (I/O EXPANDER)
DATA FROM PORT
DATA FROM PORT
READ FROM
PORT
DATA INTO
PORT
START CONDITION
ACKNOWLEDGE
FROM SLAVE
R/W
ACKNOWLEDGE
FROM MASTER
STOP
CONDITION
DATA 1
Figure 7. I/O READ mode (input)
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| PCA9513DP | Hot swappable IC and SMBus bus buffer |
| PCA9514D | Hot swappable IC and SMBus bus buffer |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9500BS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit I2C-bus and SMBus I/O port with 2-kbit EEPROM |
| PCA9500BS,118 | 功能描述:接口-I/O擴(kuò)展器 8BIT I2C FMQB GPIO PU2K 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 |
| PCA9500BSHP | 功能描述:接口-I/O擴(kuò)展器 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 |
| PCA9500D | 功能描述:接口-I/O擴(kuò)展器 I/O EXPANDER W/2K EE 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 |
| PCA9500D,112 | 功能描述:接口-I/O擴(kuò)展器 I/O EXPANDER W/2K EE 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 |
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