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參數(shù)資料
| 型號： | 935271535112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 256 X 8 EEPROM, 8 I/O, PIA-GENERAL PURPOSE, PDSO20 |
| 封裝： | 4.40 MM, PLASTIC, MO-153, SOT-360-1, TSSOP-20 |
| 文件頁數(shù)： | 4/20頁 |
| 文件大?。?/td> | 125K |
| 代理商： | 935271535112 |
Philips Semiconductors
Product data
PCA9501
8-bit I2C and SMBus I/O port with interrupt,
2-kbit EEPROM and 6 address pins
2002 Sep 27
12
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
ASIC
BACKPLANE
CPU
OR
C
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 19. 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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