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參數資料
| 型號： | PCA9501 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit I2C and SMBus I/O port with interrupt, 2-kbit EEPROM and 6 address pins |
| 中文描述： | 8位I2C和SMBus I / O口的中斷，2千比特的EEPROM和6個地址引腳 |
| 文件頁數： | 6/22頁 |
| 文件大小： | 146K |
| 代理商： | PCA9501 |
Philips Semiconductors
8-bit I
2
C and SMBus I/O port with interrupt,
2-kbit EEPROM and 6 address pins
Product data
PCA9501
2003 Sep 12
6
I/O OPERATIONS (see also Figure 4)
Each of the PCA9501
’
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
A5
A4
A3
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
SW00649
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
A5
A4
A3
A2
A1
A0
1
A
DATA 1
A
DATA 4
1
SDA
tph
tps
DATA 4
P
DATA 2
DATA 3
SW00650
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
INT
tiv
tir
Figure 7. I/O READ mode (input)
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相關代理商/技術參數 |
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|---|---|
| PCA9501A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Smart, simple solutions for the 12 most common design concerns |
| PCA9501BS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit I2C and SMBus I/O port with interrupt, 2-kbit EEPROM and 6 address pins |
| PCA9501BS,118 | 功能描述:接口-I/O擴展器 8BIT I2C FMQB GPIONT RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數量: 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9501BS,118-CUT TAPE | 制造商:NXP 功能描述:8-bit 8 I/O I2C-bus Expander On Board 2 kb EEPROM Surface Mount - HVQFN-20 |
| PCA9501BS-T | 功能描述:接口-I/O擴展器 8BIT I2C FMQB GPIONT PU2K EPR RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數量: 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
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