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参数资料
| 型号： | PCF8574TS/3,112 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 18/24页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 20SSOP |
| 产品培训模块： | I²C Bus Fundamentals |
| 特色产品： | NXP - I2C Interface |
| 标准包装： | 75 |
| 接口： | I²C |
| 输入/输出数： | 8 |
| 中断输出： | 是 |
| 频率 - 时钟： | 100kHz |
| 电源电压： | 2.5 V ~ 6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-LSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-SSOP |
| 包装： | 管件 |
| 包括： | POR |
| 产品目录页面： | 827 (CN2011-ZH PDF) |
| 配用： | 568-3615-ND - DEMO BOARD I2C |
| 其它名称： | 568-3988-5 935275672112 PCF8574TDK PCF8574TDK-ND |
2002 Nov 22
3
Philips Semiconductors
Product specication
Remote 8-bit I/O expander for I2C-bus
PCF8574
1
FEATURES
Operating supply voltage 2.5 to 6 V
Low standby current consumption of 10 A maximum
I2C-bus to parallel port expander
Open-drain interrupt output
8-bit remote I/O port for the I2C-bus
Compatible with most microcontrollers
Latched outputs with high current drive capability for
directly driving LEDs
Address by 3 hardware address pins for use of up to
8 devices (up to 16 with PCF8574A)
DIP16, or space-saving SO16 or SSOP20 packages.
2
GENERAL DESCRIPTION
The PCF8574 is a silicon CMOS circuit. It provides general
purpose remote I/O expansion for most microcontroller
families via the two-line bidirectional bus (I2C-bus).
The device consists of an 8-bit quasi-bidirectional port and
an I2C-bus interface. The PCF8574 has a low current
consumption and includes latched outputs with high
current drive capability for directly driving LEDs. It also
possesses an interrupt line (INT) which can be connected
to the interrupt logic of the microcontroller. By sending an
interrupt signal on this line, the remote I/O can inform the
microcontroller if there is incoming data on its ports without
having to communicate via the I2C-bus. This means that
the PCF8574 can remain a simple slave device.
The PCF8574 and PCF8574A versions differ only in their
slave address as shown in Fig.10.
3
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
PCF8574P;
PCF8574AP
DIP16
plastic dual in-line package; 16 leads (300 mil)
SOT38-4
PCF8574T;
PCF8574AT
SO16
plastic small outline package; 16 leads; body width 7.5 mm
SOT162-1
PCF8574TS;
PCF8574ATS
SSOP20
plastic shrink small outline package; 20 leads; body width 4.4 mm
SOT266-1
相关PDF资料 |
PDF描述 |
|---|---|
| PCF8574AP,112 | IC I/O EXPANDER I2C 8B 16DIP |
| PCF8574AT/3,512 | IC I/O EXPANDER I2C 8B 16SOIC |
| PCF8574P,112 | IC I/O EXPANDER I2C 8B 16DIP |
| PCF8574T/3,512 | IC I/O EXPANDER I2C 8B 16SOIC |
| PCA9554PW/DG,118 | IC I/O EXPANDER I2C 8B 16TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PCF8575 | 制造商:TI 制造商全称:Texas Instruments 功能描述:REMOTE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT |
| PCF8575C | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Remote 16-bit I/O expander for I2C-bus |
| PCF8575CDB | 功能描述:接口-I/O扩展器 Remote 16-Bit I2C & SMBus I/O Expander RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| PCF8575CDBE4 | 功能描述:接口-I/O扩展器 Remote 16-Bit I2C & SMBus I/O Expander RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| PCF8575CDBG4 | 功能描述:接口-I/O扩展器 Rem 16B I2C & SMBus I/O Expander RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
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