参数资料
型号: PCA9552D,112
厂商: NXP Semiconductors
文件页数: 6/28页
文件大小: 0K
描述: IC LED DRIVER BLINKER 24-SOIC
产品培训模块: LED Controllers
I²C Bus Fundamentals
标准包装: 30
拓扑: 开路漏极,PWM
输出数: 16
内部驱动器:
类型 - 主要: LED 闪烁器
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: 24-SOIC(0.295",7.50mm 宽)
供应商设备封装: 24-SO
包装: 管件
工作温度: -40°C ~ 85°C
产品目录页面: 844 (CN2011-ZH PDF)
其它名称: 568-1049-5
935272395112
PCA9552D
Philips Semiconductors
PCA9552
16-bit I 2 C-bus LED driver with programmable blink rates
6.2.1 Control Register de?nition
Table 3:
Register summary
B3
0
0
0
0
0
0
0
0
1
1
B2
0
0
0
0
1
1
1
1
0
0
B1
0
0
1
1
0
0
1
1
0
0
B0
0
1
0
1
0
1
0
1
0
1
Symbol
INPUT0
INPUT1
PSC0
PWM0
PSC1
PWM1
LS0
LS1
LS2
LS3
Access
read only
read only
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
Description
input register 0
input register 1
frequency prescaler 0
PWM register 0
frequency prescaler 1
PWM register 1
LED0 to LED3 selector
LED4 to LED7 selector
LED8 to LED11 selector
LED12 to LED15 selector
6.3 Register descriptions
6.3.1 INPUT0 - Input register 0
The Input register 0 re?ects the state of the device pins (inputs LED0 to LED7). Writes to
this register will be acknowledged but will have no effect.
Table 4:
INPUT0 - input register 0 description
Bit
Symbol
Default
7
LED7
X
6
LED6
X
5
LED5
X
4
LED4
X
3
LED3
X
2
LED2
X
1
LED1
X
0
LED0
X
Remark: The default value ‘X’ is determined by the externally applied logic level (normally
logic 1) when used for directly driving LED with pull-up to V DD .
6.3.2 INPUT1 - Input register 1
The Input register 1 re?ects the state of the device pins (inputs LED8 to LED15). Writes to
this register will be acknowledged but will have no effect.
Table 5:
INPUT1 - input register 1 description
Bit
Symbol
Default
7
LED15
X
6
LED14
X
5
LED13
X
4
LED12
X
3
LED11
X
2
LED10
X
1
LED9
X
0
LED8
X
Remark: The default value ‘X’ is determined by the externally applied logic level (normally
logic 1) when used for directly driving LED with pull-up to V DD .
PCA9552_5
? Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 05 — 9 March 2006
6 of 28
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