參數(shù)資料
型號(hào)： PCA9500D,118
廠(chǎng)商： NXP Semiconductors
文件頁(yè)數(shù)： 1/26頁(yè)
文件大小： 0K
描述： IC I/O EXPANDER I2C 8B 16SOIC
標(biāo)準(zhǔn)包裝： 1,000
接口： I²C，SM 總線(xiàn)
輸入/輸出數(shù)： 8
中斷輸出： 無(wú)
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： 16-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 16-SO
包裝： 帶卷 (TR)
包括： EEPROM，POR
其它名稱(chēng)： 935271533118
PCA9500D-T
PCA9500D-T-ND
1.
General description
The PCA9500 is an 8-bit I/O expander with an on-board 2-kbit EEPROM.
The I/O expander's 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 is included in the I/O
expander package.
The PCA9500 has 3 address pins with internal pull-up resistors allowing up to 8 devices to
share the common two-wire I2C software protocol serial data bus. The xed GPIO I2C-bus
address is the same as the PCF8574 and the xed EEPROM I2C-bus address is the same
as the PCF8582C-2, so the PCA9500 appears as two separate devices to the bus master.
The PCA9500 supports hot insertion to facilitate usage in removable cards on backplane
systems.
The PCA9501 is an alternative to the functionally similar PCA9500 for systems where a
higher number of devices are required to share the same I2C-bus or an interrupt output is
required.
2.
Features
I 8 general purpose input/output expander/collector
I Drop-in replacement for PCF8574 with integrated 2-kbit EEPROM
I Internal 256 × 8 EEPROM
I Self timed write cycle
I 4 byte page write operation
I I2C-bus and SMBus interface logic
I Internal power-on reset
I Noise lter on SCL/SDA inputs
I 3 address pins allowing up to 8 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
I Low standby current
I Operating power supply voltage range of 2.5 V to 3.6 V
PCA9500
8-bit I2C-bus and SMBus I/O port with 2-kbit EEPROM
Rev. 04 — 15 April 2009
Product data sheet
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PCA9500PW,112 功能描述:接口-I/O擴(kuò)展器 I/O EXPANDER W/2K EE 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
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