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參數(shù)資料
| 型號(hào)： | PCF8574T/3,512 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 18/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 16SOIC |
| 產(chǎn)品培訓(xùn)模塊： | I²C Bus Fundamentals |
| 特色產(chǎn)品： | NXP - I2C Interface |
| 標(biāo)準(zhǔn)包裝： | 48 |
| 接口： | I²C |
| 輸入/輸出數(shù)： | 8 |
| 中斷輸出： | 是 |
| 頻率 - 時(shí)鐘： | 100kHz |
| 電源電壓： | 2.5 V ~ 6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SO |
| 包裝： | 管件 |
| 包括： | POR |
| 產(chǎn)品目錄頁面： | 827 (CN2011-ZH PDF) |
| 配用： | 568-3615-ND - DEMO BOARD I2C |
| 其它名稱： | 568-1076-5 935275617512 PCF8574TD |
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCA9554PW/DG,118 | IC I/O EXPANDER I2C 8B 16TSSOP |
| PCA8574D,512 | IC I/O EXPANDER I2C 8B 16SOIC |
| PCA8574AD,512 | IC I/O EXPANDER I2C 8B 16SOIC |
| PCA8574PW,112 | IC I/O EXPANDER I2C 8B 16TSSOP |
| PCA9554DB,112 | IC I/O EXPANDER I2C 8B 16SSOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCF8574TD | 功能描述:I2C 接口集成電路 REMOTE I/O EXPANDER RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
| PCF8574TDK-T | 制造商:NXP Semiconductors 功能描述: 制造商:PHILIPS-SEMI 功能描述: |
| PCF8574TDM | 制造商:NXP Semiconductors 功能描述: |
| PCF8574TD-T | 制造商:NXP Semiconductors 功能描述: |
| PCF8574TS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Remote 8-bit I/O expander for I2C-bus |
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