参数资料
型号: PCA9531PW,118
厂商: NXP Semiconductors
文件页数: 11/27页
文件大小: 0K
描述: IC LED DRIVER RGB 16-TSSOP
标准包装: 2,500
拓扑: 开路漏极,PWM
输出数: 8
内部驱动器:
类型 - 主要: 背光,LED 闪烁器
类型 - 次要: RGB
频率: 400kHz
电源电压: 2.3 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 16-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 16-TSSOP
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
配用: 568-4003-ND - DEMO BOARD LED DIMMER
568-3615-ND - DEMO BOARD I2C
其它名称: 935274729118
PCA9531PW-T
PCA9531PW-T-ND
NXP Semiconductors
PCA9531
8-bit I 2 C-bus LED dimmer
7.4 Bus transactions
SCL
1
2
3
4
5
6
7
8
9
slave address
command byte
data to register
SDA S
1
1
0
0 A2 A1 A0 0
A
0
0
0
AI
0 B2 B1 B0 A
DATA 1
A
START condition
R/W
acknowledge
from slave
acknowledge
from slave
acknowledge
from slave
write to register
t v(Q)
data out from port
DATA 1 VALID
002aac507
Fig 11. Write to register
slave address
command byte
SDA S
1
1
0
0 A2 A1 A0 0
A
0
0
0
AI
0 B2 B1 B0 A
(cont.)
START condition
R/W
acknowledge
from slave
acknowledge
from slave
slave address
data from register
data from register
(cont.) S
1
1
0
0 A2 A1 A0 1
A
DATA (first byte)
A
DATA (last byte)
NA P
Auto-Increment
(repeated)
START condition
R/W
acknowledge
register address
if AI = 1
acknowledge
from master
no acknowledge
from master
STOP
condition
from slave
at this moment master-transmitter becomes master-receiver
and slave-receiver becomes slave-transmitter
002aac508
Fig 12. Read from register
no acknowledge
from master
slave address
data from port
data from port
SDA S
1
1
0
0 A2 A1 A0 1
A
DATA 1
A
DATA 4
NA P
START condition
R/W
acknowledge
from slave
acknowledge
from master
STOP
condition
read from
port
t h(D)
t su(D)
data into
port
DATA 2
DATA 3
DATA 4
002aac509
Remark: This ?gure assumes the command byte has previously been programmed with 00h.
Fig 13. Read Input port register
PCA9531_6
? NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 06 — 19 February 2009
11 of 27
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