PCA9553 LED闪烁器可在I²C总线和SMBus应用中闪烁LED,而在这些应用中有必要限制总线流量或释放I²C总线主机(MCU、MPU、DSP、芯片组等)定时器。该器件的独特之处是集成内部振荡器,提供两种可编程闪烁速率。若要使用普通的I/O扩展器(如PCF8574或PCA9554)闪烁LED,则总线主机必须发送重复命令,开启和关闭LED。这可极大地增加I²C总线上的流量,并耗尽主机的其中一个定时器。而PCA9553 LED闪烁器仅需初始设置命令便可编程闪烁速率1和闪烁速率2(如频率和占空比)。在此之后,只需总线主机发出一条命令,便可开启或关闭各开漏输出,或者在闪烁速率1或闪烁速率2之间循环切换。最大输出吸电流为每位25 mA,以及每封装100 mA。
任何未用于控制LED的位都可用作通用并行输入/输出(GPIO)扩展。
上电复位(POR)可将寄存器初始化为它们的默认状态(全零),使位变为高电平(LED关闭)。
由于针脚的限制,PCA9553无硬件地址针脚。PCA9553/01和PCA9553/02具有不同的固定I²C总线地址,允许在一条总线上运行这两个器件。
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4-bit I2C-bus LED driver with programmable blink rates (REV 6.0) PDF (147.0 kB) PCA9553 [English] | 29 Dec 2008 |
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PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus (REV 1.0) PDF (90.0 kB) AN256 [English] | 23 Mar 2009 |
Level shifting techniques in I2C-bus design (REV 1.0) PDF (52.0 kB) AN10441 [English] | 20 Jun 2007 |
I2C Devices for LED Display Control (REV 1.0) PDF (1.0 MB) AN264 [English] | 22 Jul 2002 |
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I2C-bus specification and user manual (REV 6.0) PDF (1.4 MB) UM10204 [English] | 28 Apr 2014 |
I2C-bus specification and user manual (REV 5.0) PDF (1.6 MB) UM10204_JA [English] | 03 Apr 2013 |
PCA9633 demonstration board OM6282 (REV 1.0) PDF (337.0 kB) UM10317 [English] | 15 Dec 2008 |
PCA9698 demonstration board OM6281 (REV 1.0) PDF (558.0 kB) UM10267 [English] | 26 Sep 2008 |
I2C Demonstration Board 2005-1 Quick Start Guide (REV 1.0) PDF (261.0 kB) UM10206 [English] | 13 Jun 2006 |
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NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns (REV 1.0) PDF (3.5 MB) 75017540 [English] | 01 Aug 2014 |
LED controllers: Voltage-switch drivers, constant-current drivers, and Flash LED drivers (REV 1.0) PDF (2.7 MB) 75017588 [English] | 03 Jul 2014 |
Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for... (REV 1.0) PDF (1.1 MB) 75016543 [English] | 01 Jun 2008 |
LED blinking with GPIO expansion; NXP® 2/4/8/16-bit I2C/SMBus LED blinkers PCA9550/51/52/53 (REV 1.0) PDF (219.0 kB) 75016021 [English] | 01 Jun 2007 |
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plastic thermal enhanced very thin small outline package; no leads; 8 terminals (REV 1.1) PDF (189.0 kB) SOT908-1 [English] | 10 Jun 2016 |
plastic thin shrink small outline package; 8 leads; body width 3 mm (REV 1.0) PDF (240.0 kB) SOT505-1 [English] | 08 Feb 2016 |
plastic small outline package; 8 leads; body width 3.9 mm (REV 1.0) PDF (244.0 kB) SOT96-1 [English] | 08 Feb 2016 |
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HVSON8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 2.0) PDF (271.0 kB) SOT908-1_118 [English] | 19 Apr 2013 |
SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... (REV 2.0) PDF (232.0 kB) SOT96-1_118 [English] | 19 Apr 2013 |
TSSOP8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (214.0 kB) SOT505-1_118 [English] | 15 Apr 2013 |
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design_con_2003_tecforum_i2c_b_1 (REV 0.1) PDF (4.2 MB) DESIGN_CON_2003_TECFORUM_I2C_B_1 [English] | 27 Jan 2003 |
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Reflow Soldering Profile (REV 1.0) PDF (34.0 kB) REFLOW_SOLDERING_PROFILE [English] | 30 Sep 2013 |
Wave Soldering Profile (REV 1.0) PDF (20.0 kB) WAVE_SOLDERING_PROFILE [English] | 30 Sep 2013 |
Footprint for reflow soldering (REV 1.0) PDF (9.0 kB) SO-SOJ-REFLOW [English] | 08 Oct 2009 |
Footprint for wave soldering (REV 1.0) PDF (8.0 kB) SO-SOJ-WAVE [English] | 08 Oct 2009 |
型号 | 状态 | Package version | Operating Temperature (Cel) | PWMs | I2C-bus (kHz) | Operating voltage (VDC) | Max Sink Current per bit (mA) | No of Addresses | Max Sink Current, per package (mA) | Number of bits |
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PCA9553TK | Active | SOT908-1 | -40~85 | 2 (40 Hz to 6.4 sec) | 400 | 2.3~5.5 | 25 | 1 | 100 | 4 |
产品编号 | 封装说明 | Outline Version | 回流/波峰焊接 | 包装 | 产品状态 | 部件编号订购码 (12NC) | Marking | 化学成分 | RoHS / 无铅 / RHF | 无铅转换日期 | EFR | IFR(FIT) | MTBF(小时) | MSL | MSL LF |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
PCA9553TK | SOT908-1 | Reel 13" Q1/T1 | Active | PCA9553TK,118 (9352 821 58118) | P53/1 | PCA9553TK | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | |||
PCA9553D/01 | SOT96-1 | SO-SOJ-REFLOW
SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE | Reel 13" Q1/T1 | Active | PCA9553D/01,118 (9352 728 25118) | 9553/1 | PCA9553D/01 | week 5, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 | ||
Bulk Pack | Active | PCA9553D/01,112 (9352 728 25112) | 9553/1 | PCA9553D/01 | week 5, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 | |||||
PCA9553D/02 | SOT96-1 | SO-SOJ-REFLOW
SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE | Bulk Pack | Withdrawn | PCA9553D/02,112 (9352 728 27112) | 9553/2 | week 5, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 | |||
PCA9553DP/01 | SOT505-1 | Reflow_Soldering_Profile | Reel 13" Q1/T1 | Active | PCA9553DP/01,118 (9352 728 26118) | P53/1 | PCA9553DP/01 | week 12, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 | ||
PCA9553DP/02 | SOT505-1 | Reflow_Soldering_Profile | Reel 13" Q1/T1 | Active | PCA9553DP/02,118 (9352 728 28118) | P53/2 | PCA9553DP/02 | week 12, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |