CAT9552HV6I-GT2 datasheet(6/18 Pages) ONSEMI

Part #	CAT9552HV6I-GT2

Description	16-Channel I2C-bus LED Driver with Programmable Blink Rate

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CAT9552

AC TEST CONDITIONS

Input Pulse Voltage

0.2VCC to 0.8VCC

Input Rise and Fall Times

≤5ns

Input Reference Voltage

0.3VCC, 0.7VCC

Output Reference Voltage

0.5VCC

Output Load

Current source: IOL = 3mA; 400pF for fSCL(max) = 400kHz

tHIGH

SCL

SDA IN

SDA OUT

tLOW

tF

tLOW

tR

tBUF

tSU:STO

tSU:DAT

tHD:DAT

tHD:STA

tSU:STA

tAA

tDH

Figure 1. 2-Wire Serial Interface Timing

PIN DESCRIPTION

SCL: Serial Clock

The serial clock input clocks all data transferred into

or out of the device. The SCL line requires a pull-up

resistor if it is driven by an open drain output.

SDA: Serial Data/Address

The bidirectional serial data/address pin is used to

transfer all data into and out of the device. The SDA

pin is an open drain output and can be wire-ORed

with other open drain or open collector outputs. A pull-

up resistor must be connected from SDA line to VCC.

LED0 to LED15: LED Driver Outputs / General

Purpose I/Os

These pins are open drain outputs used to directly

drive LEDs. Any of these pins can be programmed to

drive the LED ON, OFF, or to Blink Rate1 or Blink

Rate2. A current limiting resistor should be placed in

series with each LED to control the maximum LED

current. When not used for controlling the LEDs, these

pins may be used as general purpose parallel

input/output.

RESET

¯¯¯¯¯¯: External Reset Input

Active low Reset input is used to initialize the

CAT9552 internal registers and the I

2C state machine.

The internal registers are held in their default state

while Reset input is active. An external pull-up resistor

of maximum 25kΩ is required when this pin is not

actively driven.

Doc. No. MD-9005 Rev D

6

Characteristics subject to change without notice

Similar Part No. - CAT9552HV6I-GT2

Manufacturer	Part #	Datasheet	Description
ON Semiconductor	CAT9552HV6I-GT2	192Kb / 17P	16-Channel I2C-bus LED Driver with Programmable Blink Rate Doc. No. MD-9005 Rev B

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CAT9552HV6I-GT2 Datasheet(PDF) 6 Page - ON Semiconductor

CAT9552HV6I-GT2 Datasheet(HTML) 6 Page - ON Semiconductor

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