AAT2400 Datasheet, PDF (20/32 Pages) Skyworks Solutions Inc. – Sixteen-Channel White LED Driver Solution

SPI Single-Byte Write
CS
DATA SHEET
AAT2400/2401
Sixteen-Channel White LED Driver Solution
with Full LED Current and Timing Control
SCLK
SDI
7-Bit Device Address
W
8-Bit Register Address
8-Bit Data written in
“1” “0” “1” A3 A2 A1 A0 “0” R7 R6 R5 R4 R3 R2 R1 R0 D7 D6 D5 D4 D3 D2 D1 D0
SDO
SPI Single-Byte Read
CS
High Impedance
SCLK
SDI
SDO
7-Bit Device Address
R
8-Bit Register Address
“1” “0” “1” A3 A2 A1 A0 “1” R7 R6 R5 R4 R3 R2 R1 R0
High Impedance or don’t care
High Impedance
8-Bit Data read out
D7 D6 D5 D4 D3 D2 D1 D0
SPI Multi-Byte Write Transfer
CS
SCLK
SDI
Device Addr & W
Register Address
SDO
High Impedance
SPI Multi-Byte Read Transfer
CS
Data Byte n
Data Byte n+1
Data Byte n+m
SCLK
SDI
SDO
Device Addr & R
Register Address
High Impedance
High Impedance or don’t care
Data Byte n
Data Byte n+1
Data Byte n+m
20
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
202307A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 24, 2012