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參數(shù)資料
| 型號(hào)： | PCA9501D,112 |
| 廠商： | NXP Semiconductors |
| 文件頁(yè)數(shù)： | 1/28頁(yè) |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 20SOIC |
| 標(biāo)準(zhǔn)包裝： | 38 |
| 接口： | I²C，SM 總線 |
| 輸入/輸出數(shù)： | 8 |
| 中斷輸出： | 是 |
| 頻率 - 時(shí)鐘： | 400kHz |
| 電源電壓： | 2.5 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 20-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-SO |
| 包裝： | 管件 |
| 包括： | EEPROM |
| 配用： | 568-4002-ND - DEMO BOARD I2C |
| 其它名稱(chēng)： | 568-3353-5 935272364112 PCA9501D |
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1.
General description
The PCA9501 is an 8-bit I/O expander with an on-board 2-kbit EEPROM.
The I/O expandable eight quasi-bidirectional data pins can be independently assigned as
inputs or outputs to monitor board level status or activate indicator devices such as LEDs.
The system master writes to the I/O conguration bits in the same way as for the
PCF8574. The data for each input or output is kept in the corresponding input or output
register. The system master can read all registers.
The EEPROM can be used to store error codes or board manufacturing data for
read-back by application software for diagnostic purposes and are included in the I/O
expander package.
The PCA9501 active LOW open-drain interrupt output is activated when any input state
differs from its corresponding input port register state. It is used to indicate to the system
master that an input state has changed and the device needs to be interrogated.
The PCA9501 has six address pins with internal pull-up resistors allowing up to
64 devices to share the common two-wire I2C-bus software protocol serial data bus. The
xed GPIO address starts with ‘0’ and the xed EEPROM I2C-bus address starts with ‘1’,
so the PCA9501 appears as two separate devices to the bus master.
The PCA9501 supports hot insertion to facilitate usage in removable cards on backplane
systems.
2.
Features
I 8 general purpose input/output expander/collector
I Replacement for PCF8574 with integrated 2-kbit EEPROM
I Internal 256 × 8 EEPROM
I Self timed write cycle (5 ms typical)
I 16 byte page write operation
I I2C-bus and SMBus interface logic
I Internal power-on reset
I Noise lter on SCL/SDA inputs
I Active LOW interrupt output
I 6 address pins allowing up to 64 devices on the I2C-bus/SMBus
I No glitch on power-up
I Supports hot insertion
I Power-up with all channels congured as inputs
PCA9501
8-bit I2C-bus and SMBus I/O port with interrupt, 2-kbit
EEPROM and 6 address pins
Rev. 04 — 10 February 2009
Product data sheet
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9501PW | 功能描述:I2C 接口集成電路 I/O EXPANDER W/2K EE 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 |
| PCA9501PW,112 | 功能描述:I2C 接口集成電路 I/O EXPANDER W/2K EE 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 |
| PCA9501PW,118 | 功能描述:接口-I/O擴(kuò)展器 8BIT I2C 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 |
| PCA9501PW112 | 制造商:NXP Semiconductors 功能描述:IC I/O EXPANDER 8BIT 400KHZ TSSOP-20 |
| PCA9501PW118 | 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: |
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