AS1115-BQFT(2012) 查看數據表（PDF） - austriamicrosystems AG

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AS1115-BQFT
(Rev.:2012)

64 LEDs, I²C Interfaced LED Driver with Keyscan

austriamicrosystems AG 

AS1115

Datasheet - Detailed Description

8 Detailed Description

Block Diagram

Figure 16. AS1115 - Block Diagram (QSOP-24 Package)

Open/Short

Detection

VDD

+

–

+

ill –

Oszillator

VDD

G st 24

A t IRQ

s n VDD

aml conte VDD

14

SCL

1

SDA

Digital Control

Logic

(PWM, Debounce,....)

I²C

Interface

Registers

Data - Registers

Control - Registers

Scan - Registers

19

VDD

13

ISET

RSET

8 15-18, 20-23

SEGA-G,

SEGDP

8 2-5, 7-10

DIG0 to DIG7

2 11, 12

KEYA, KEYB

6

GND

AS1115

nica Figure 17. ESD Structure

TechVDD

valid for the pins:

- IRQ

- SCL

- SDA

- ISET

- SEGA-G, SEGDP

- KEYA, KEYB

VDD

valid for the pins:

- DIG0 to DIG7

valid

www.austriamicrosystems.com/LED-Driver-ICs/AS1115

Revision 1.08

8 - 25

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