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PCA9501 датащи(PDF) 13 Page - NXP Semiconductors

номер детали PCA9501
подробное описание детали  8-bit I2C and SMBus I/O port with interrupt, 2-kbit EEPROM and 6 address pins
PDF  22 Pages
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производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCA9501 датащи(HTML) 13 Page - NXP Semiconductors

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Product data
PCA9501
8-bit I2C and SMBus I/O port with interrupt,
2-kbit EEPROM and 6 address pins
2003 Sep 12
13
TYPICAL APPLICATION
Applications
• Board version tracking and configuration
• Board health monitoring and status reporting
• Multi-card systems in Telecom, Networking, and Base Station
Infrastructure Equipment
• Field recall and troubleshooting functions for installed boards
• General-purpose integrated I/O with memory
• Replacement for PCF8574 with integrated 2-kbit EEPROM
• Bus master sees GPIO and EEPROM as two separate devices
• Six hardware address pins allow up to 64 PCA9501s to be located
in the same I2C/SMBus
CONTROL
EEPROM
GPIO
I2C
I2C
I2C
I2C
ASIC
CPU
OR
µC
I2C
MONITORING
AND
CONTROL
INPUTS
ALARM
LEDs
PCA9501
CARD ID, SUBROUTINES, CONFIGURATION DATA, OR REVISION HISTORY
SW02007
UP TO 64 CARDS
CONFIGURATION CONTROL
I2C
Figure 20. Typical application
A central processor/controller typically located on the system main
board can use the 400 kHz I2C/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, firmware version,
manufacturer identification, configuration option data
… Alternately,
these devices can be used as convenient interface for board
configuration, thereby utilizing the I2C/SMBus as an intra-system
communication bus.



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