PCA9501D NXP Semiconductors, PCA9501D Datasheet - Page 13

• Manufacturer Part Number: PCA9501D
• Description: I/O Expanders, Repeaters & Hubs 8BIT I2C FMQB GPIONT PU2K EPR
• Manufacturer: NXP Semiconductors

Specifications of PCA9501D

• Lead Free Status / Rohs Status: Details
• Other names: PCA9501D,112

NXP Semiconductors
9. Application design-in information
PCA9501_4
Product data sheet
Fig 21. PCA9501 used as interface for board configuration
CPU
OR
C
I
2
C-bus
A central processor/controller typically located on the system main board can use the
400 kHz I
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, and so on. Alternately, these devices can be used
as convenient interface for board configuration, thereby utilizing the I
intra-system communication bus
BACKPLANE
2
C-bus/SMBus to poll the PCA9501 devices located on the system cards for
64 cards
up to
I
I
I
I
I
2
2
2
2
2
C-bus
C-bus
C-bus
C-bus
C-bus
Rev. 04 — 10 February 2009
8-bit I
2
C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM
card ID, subroutines, configuration data, or revision history
configuration control
PCA9501
CONTROL
EEPROM
ASIC
GPIO
monitoring
control
and
2
C-bus/SMBus as an
INPUTS
ALARM
PCA9501
LEDs
© NXP B.V. 2009. All rights reserved.
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