參數(shù)資料
型號(hào)： PCA9537
廠商： NXP Semiconductors N.V.
英文描述： 4-bit I2C and SMBus low power I/O port with interrupt and reset
中文描述： 4位I2C和SMBus低功率的I / O端口中斷和復(fù)位
文件頁數(shù)： 5/17頁
文件大小： 163K
代理商： PCA9537
Philips Semiconductors
4-bit I
2
C and SMBus low power I/O port
with interrupt and reset
Product data sheet
PCA9537
2004 Nov 29
5
SIMPLIFIED SCHEMATIC OF I/O0 TO I/O3
WRITE PULSE
DATA FROM
SHIFT REGISTER
WRITE
CONFIGURATION
PULSE
D
C
K
FF
Q
D
C
K
Q
FF
D
C
K
Q
FF
D
C
K
Q
FF
INPUT PORT
REGISTER
POLARITY
INVERSION
REGISTER
OUTPUT
PORT
REGISTER
DATA FROM
SHIFT REGISTER
DATA FROM
SHIFT REGISTER
WRITE
POLARITY
PULSE
CONFIGURATION
REGISTER
OUTPUT PORT
REGISTER DATA
INPUT PORT
REGISTER DATA
POLARITY
REGISTER DATA
READ PULSE
SW02325
Q
Q
Q
Q
TO INT
Q1
Q2
V
DD
ESD PROTECTION DIODE
ESD PROTECTION DIODE
I/O0 TO I/O3
V
SS
NOTE:
At Power-on Reset, all registers return to default values.
Figure 3. Simplified schematic of I/O0 to I/O3
I/O port
When an I/O is configured as an input, FETs Q1 and Q2 are off,
creating a high-impedance input. The input voltage may be raised
above V
DD
to a maximum of 5.5 V.
If the I/O is configured as an output, then either Q1 or Q2 is enabled,
depending on the state of the output port register. Care should be
exercised if an external voltage is applied to an I/O configured as an
output because of the low-impedance paths that exist between the
pin and either V
DD
or V
SS
.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCA9537DP 制造商:NXP Semiconductors 功能描述:IC IO PORT I2C/SMBUS 4BIT 1 制造商:NXP Semiconductors 功能描述:IC, IO PORT, I2C/SMBUS 4BIT, 10TSSOP 制造商:NXP Semiconductors 功能描述:IC, IO PORT, I2C/SMBUS 4BIT, 10TSSOP; Chip Configuration:4bit; Bus Frequency:400kHz; Interface Type:I2C, SMBus; Supply Voltage Min:2.3V; Supply Voltage Max:5.5V; Digital IC Case Style:TSSOP; No. of Pins:10; No. of I/O's:4; MSL:MSL 1 ;RoHS Compliant: Yes
PCA9537DP,118 功能描述:接口-I/O擴(kuò)展器 I2C/SMBUS 4BIT GPIO 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
PCA9537DP.118 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4-bit I2C-bus and SMBus low power I/O port with interrupt and reset
PCA9537DP118 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述:
PCA9538 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit I2C and SMBus low power I/O port with interrupt and reset
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