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參數(shù)資料
型號(hào): PCA9501PW,118
廠商: NXP Semiconductors
文件頁數(shù): 5/28頁
文件大小: 0K
描述: IC I/O EXPANDER I2C 8B 20TSSOP
標(biāo)準(zhǔn)包裝: 2,500
接口: I²C,SM 總線
輸入/輸出數(shù): 8
中斷輸出:
頻率 - 時(shí)鐘: 400kHz
電源電壓: 2.5 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 20-TSSOP
包裝: 帶卷 (TR)
包括: EEPROM
配用: 568-4002-ND - DEMO BOARD I2C
其它名稱: 935271535118
PCA9501PW-T
PCA9501PW-T-ND
PCA9501_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 10 February 2009
13 of 28
NXP Semiconductors
PCA9501
8-bit I2C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM
9.
Application design-in information
A central processor/controller typically located on the system main board can use the
400 kHz I2C-bus/SMBus to poll the PCA9501 devices located on the system cards for
status or version control type of information. The PCA9501 may be programmed at
manufacturing to store information regarding board build, rmware version, manufacturer
identication, conguration option data, and so on. Alternately, these devices can be used
as convenient interface for board conguration, thereby utilizing the I2C-bus/SMBus as an
intra-system communication bus
Fig 21. PCA9501 used as interface for board conguration
I2C-bus
ASIC
GPIO
CONTROL
EEPROM
monitoring
and
control
configuration control
PCA9501
INPUTS
ALARM
LEDs
I2C-bus
card ID, subroutines, configuration data, or revision history
up to
64 cards
BACKPLANE
I2C-bus
CPU
OR
C
002aac026
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