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CAT9552YI Datasheet(PDF) 2 Page - ON Semiconductor

Part # CAT9552YI
Description  16-Channel I2C-bus LED Driver with Programmable Blink Rate
Download  17 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

CAT9552YI Datasheet(HTML) 2 Page - ON Semiconductor

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CAT9552
Doc. No. MD-9005 Rev B
2
© 2008 SCILLC. All rights reserved
Characteristics subject to change without notice
PIN CONFIGURATION
SOIC (W), TSSOP (Y)
TQFN (HV6)
1
2
3
4
5
6
RESET
LED15
LED14
LED13
LED12
LED11
18
17
16
15
14
13
LED0
LED1
LED2
LED3
LED4
LED5
PIN DESCRIPTION
SOIC / TSSOP
TQFN
PIN NAME
FUNCTION
1
22
AO
Address Input 0
2
23
A1
Address Input 1
3
24
A2
Address Input 2
4-11
1-8
LED0 - LED7
LED Driver Output 0 to 7, I/O Port 0 to 7
12
9
VSS
Ground
13-20
10-17
LED8 - LED15
LED Driver Output 8 to 15, I/O Port 8 to 15
21
18
RESET
¯¯¯¯¯¯
Reset Input
22
19
SCL
Serial Clock
23
20
SDA
Serial Data
24
21
VCC
Power Supply
—
Pad
Backside pad
For enhanced heat dissipation. Electrically this pad
must be at ground potential.
BLOCK DIAGRAM
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
19
17
16
15
14
13
AO
A1
A2
LED0
LED1
LED2
LED3
LED4
LED5
LED6
LED7
VSS
VCC
SDA
SCL
RESET
LED15
LED14
LED13
LED12
LED11
LED10
LED9
LED8
VCC
RESET
SCL
A2
A1
A0
SDA
LEDx
VSS
INPUT
FILTERS
POWER ON
RESET
OSCILLATOR
PRESCALER 0
REGISTER
PRESCALER 1
REGISTER
PWM 0
REGISTER
LED SELECT (LSx)
REGISTER
INPUT
REGISTER
BLINK 0
CAT9552
BLINK 1
CONTROL
LOGIC
PWM 1
REGISTER
Note: Only one I/O is shown for clarity
I2C BUS
CONTROL


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