PCA6416AHF,128 NXP Semiconductors, PCA6416AHF,128 Datasheet - Page 16

• Manufacturer Part Number: PCA6416AHF,128
• Description: Interface - I/O Expanders
• Manufacturer: NXP Semiconductors

Specifications of PCA6416AHF,128

• 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: HWQFN-24
• Operating Current: 200 mA
• Output Current: 10 mA
• Product Type: I/O Expanders
• Factory Pack Quantity: 6000

NXP Semiconductors
9. Application design-in information
PCA6416A
Product data sheet
Fig 14. Typical application
V
DD(I2C-bus)
(1) External resistors are required for inputs (on P port) that may float. If a driver to an input will never let the input float, a resistor
Device address configured as 0100 000x for this example.
P0_0 and P0_2 through P1_0 are configured as inputs.
P0_1 and P1_1 through P1_7 are configured as outputs.
is not needed. If an output in the P port is configured as a push-pull output there is no need for external pull-up resistors. If an
output in the P port is configured as an open-drain output, external pull-up resistors are required.
= 1.8 V
CONTROLLER
9.1 Minimizing I
MASTER
V
V
DD
SS
RESET
When the I/Os are used to control LEDs, they are normally connected to V
resistor as shown in
V
lower than V
Designs needing to minimize current consumption, such as battery power applications,
should consider maintaining the I/O pins greater than or equal to V
off.
less than the LED supply voltage by at least 1.2 V. Both of these methods maintain the I/O
V
off.
SDA
SCL
I
I
INT
10 kΩ
at or above V
is about 1.2 V less than V
Figure 15
10 kΩ
DD(P)
10 kΩ
shows a high value resistor in parallel with the LED.
DD
All information provided in this document is subject to legal disclaimers.
DD(P)
.
10 kΩ
when the I/Os are used to control LEDs
Figure
and prevents additional supply current consumption when the LED is
Rev. 2 — 10 January 2013
Low-voltage translating 16-bit I
SCL
SDA
INT
RESET
ADDR
14. Since the LED acts as a diode, when the LED is off the I/O
V
V
DD(P)
DD(I2C-bus)
DD(I2C-bus)
. The supply current, I
V
PCA9614A
SS
V
V
DD(P)
DD(P)
P0_0
P0_1
P0_2
P0_3
P0_4
P0_5
P0_6
P0_7
P1_0
P1_1
P1_2
P1_3
P1_4
P1_5
P1_6
P1_7
10 kΩ (× 7)
DD(P)
2
, increases as V
C-bus/SMBus I/O expander
Figure 16
enable
PCA6416A
KEYPAD
DD(P)
(e.g., alarm system)
ALARM
SUBSYSTEM 1
© NXP B.V. 2013. All rights reserved.
when the LED is
A
B
(1)
DD(P)
I
shows V
becomes
controlled
switch
002aaf594
through a
16 of 42
DD(P)