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參數(shù)資料
| 型號： | PCA9556 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Octal SMBus Registered Interface(八位SM總線寄存接口) |
| 中文描述： | 八進(jìn)制注冊的SMBus接口（八位釤總線寄存接口） |
| 文件頁數(shù)： | 2/12頁 |
| 文件大?。?/td> | 111K |
| 代理商： | PCA9556 |
Philips Semiconductors
Product specification
PCA9556
Octal SMBus Registered Interface
2
1998 Dec 18
853-2138 20549
FEATURES
SMBus compliance with fixed 3.3V voltage levels
Operating power supply voltage range of 3.0V – 3.6V
Active high polarity inverter register
Write protect register
Active low reset pin
Low leakage current on power-down
Noise filter on SCL/SDA inputs
No glitch on power-up
Internal power-on reset
8 I/O pins which default to 8 inputs
High impedance open drain on I/O
DESCRIPTION
The PCA9556 is a silicon CMOS circuit which provides parallel
input/output expansion for SMBus applications. The PCA9556
consists of an 8-bit input port register, 8-bit output port register, and
an SMBus interface. It has low current consumption and a high
impedance open drain output pin, I/O0.
The SMBus system master can reset the PCA9556 in the event of a
timeout by asserting a LOW on the reset input. The SMBus system
master can also invert the PCA9556 inputs by writing to their active
HIGH polarity inversion bits. Finally, the SMBus system master can
enable the PCA9556’s I/Os as either inputs or outputs by writing to
their I/O configuration bits.
The power-on reset sets the registers to their default values and
initializes the SMBus state machine. The RESET pin causes the
same reset/initialization to occur without depowering the part.
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
su01045
SCL
SDA
A0
A1
A2
I/O0
I/O1
V
SS
V
DD
RESET
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
Figure 1. Pin configuration
PIN DESCRIPTION
PIN
NUMBER
1
SYMBOL
FUNCTION
SCL
Serial clock line
2
SDA
Serial data line
3
A0
Address input 0
4
A1
Address input 1
5
A2
Address input 2
6
I/O0
I/O0 (open drain)
7
I/O1
I/O1
8
V
SS
I/O2
Supply GROUND
9
I/O2
10
I/O3
I/O3
11
I/O4
I/O4
12
I/O5
I/O5
13
I/O6
I/O6
14
I/O7
I/O7
15
RESET
External reset (active LOW)
16
V
DD
Supply voltage
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
DRAWING NUMBER
16-Pin Plastic TSSOP16 Type I
0
°
C to +70
°
C
PCA9556 PW
SOT403-1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCA9556PW | Octal SMBus Registered Interface |
| PCA9557 | 8-bit I2C and SMBus I/0 port with reset |
| PCA9558 | 8-bit I2C and SMBus I/O port with 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM and 2 k bit EEPROM |
| PCA9559 | 5-bit multiplexed/1-bit latched 6-bit I I C EEPROM(5位多路的/1位鎖存的6位IIC EEPROM) |
| PCA9564 | Parallel bus to I2C-bus controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9556_02 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal SMBus and I2C registered interface |
| PCA9556PW | 制造商:NXP Semiconductors 功能描述:8-bit Octal bus,2.3-5.5V,PCA9556PW 制造商:NXP Semiconductors 功能描述:OCTAL SMBUS AND I2C REGISTERED INTERFACE |
| PCA9556PW,112 | 功能描述:接口-I/O擴(kuò)展器 OCTAL SMBUS REG INTERFACE 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 |
| PCA9556PW,118 | 功能描述:接口-I/O擴(kuò)展器 OCTAL SMBUS REG 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 |
| PCA9556PW,118-CUT TAPE | 制造商:NXP 功能描述:PCA9556 Series Octal SMBus and I2C Registered Interface - TSSOP - 16 |
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