PCA9552D NXP Semiconductors, PCA9552D Datasheet - Page 9

• Manufacturer Part Number: PCA9552D
• Description: LED Drivers I2C LED BLINKR 16BIT
• Manufacturer: NXP Semiconductors

Specifications of PCA9552D

• Number Of Segments: 16
• Low Level Output Current: 25000 uA (Min)
• Operating Supply Voltage: 2.3 V to 5.5 V
• Maximum Supply Current: 550 uA
• Maximum Power Dissipation: 400 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-137
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PCA9552D,112

Philips Semiconductors
PCA9552_5
Product data sheet
6.4 Pins used as GPIOs
6.5 Power-on reset
6.6 External RESET
LED pins not used to control LEDs can be used as general purpose I/Os (GPIOs).
For use as input, set LEDn to high-impedance (01) and then read the pin state via the
input register.
For use as output, connect external pull-up resistor to the pin and size it according to the
DC recommended operating characteristics. LED output pin is HIGH when the output is
programmed as high-impedance, and LOW when the output is programmed LOW through
the ‘LED selector’ register. The output can be pulse-width controlled when PWM0 or
PWM1 are used.
When power is applied to V
a reset condition until V
and the PCA9552 registers are initialized to their default states. Thereafter, V
lowered below 0.2 V to reset the device.
A reset can be accomplished by holding the RESET pin LOW for a minimum of t
PCA9552 registers and I
RESET input is once again HIGH.
This input requires a pull-up resistor to V
Rev. 05 — 9 March 2006
DD
2
C-bus state machine will be held in their default states until the
has reached V
DD
16-bit I
, an internal Power-On Reset (POR) holds the PCA9552 in
2
C-bus LED driver with programmable blink rates
DD
POR
if no active connection is used.
. At that point, the reset condition is released
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PCA9552
DD
w(rst)
must be
9 of 28
. The