PCAL6416APW,118 NXP Semiconductors, PCAL6416APW,118 Datasheet - Page 25
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PCAL6416APW,118
Manufacturer Part Number
PCAL6416APW,118
Description
Interface - I/O Expanders 16b I2C BUS INTERUPT
Manufacturer
NXP Semiconductors
Datasheet
1.PCAL6416AHF128.pdf
(54 pages)
Specifications of PCAL6416APW,118
Rohs
yes
Maximum Operating Frequency
100 kHz
Operating Supply Voltage
1.65 V to 5.5 V
Operating Temperature Range
- 40 C to + 85 C
Mounting Style
SMD/SMT
Package / Case
TSSOP-24
Operating Current
200 mA
Output Current
25 mA
Product Type
I/O Expanders
Factory Pack Quantity
2500
NXP Semiconductors
PCAL6416A
Product data sheet
Fig 20. Simplified output stage
9.2 Output drive strength control
The Output drive strength registers allow the user to control the output drive level of the
GPIO. Each GPIO can be configured independently to one of the four possible output
current levels. By programming these bits the user is changing the number of transistor
pairs or ‘fingers’ that drive the I/O pad.
Figure 20
Configuration register, the output port data, and the current control register. When the
Current Control register bits are programmed to 10b, then only two of the fingers are
active, reducing the current drive capability by 50 %.
Fig 18. High value resistor in parallel with
the LED
shows a simplified output stage. The behavior of the pad is affected by the
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 24 December 2012
Low-voltage translating 16-bit I
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Fig 19. Device supplied by a lower voltage
2
C-bus/SMBus I/O expander
PCAL6416A
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© NXP B.V. 2012. All rights reserved.
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