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PCA9553
Datasheet
General description
The PCA9553 LED blinker blinks LEDs in I2C-bus and SMBus applications where it is necessary to limit bus traffic or free up the I2C-bus master's (MCU, MPU, DSP, chip set, etc.) timer. The uniqueness of this device is the internal oscillator with two programmable blink rates. To blink LEDs using normal I/O expanders like the PCF8574 or PCA9554, the bus master must send repeated commands to turn the LED on and off. This greatly increases the amount of traffic on the I2C-bus and uses up one of the master's timers. The PCA9553 LED blinker instead requires only the initial set-up command to program BLINK RATE 1 and BLINK RATE 2 (i.e., the frequency and duty cycle). From then on, only one command from the bus master is required to turn each individual open-drain output ON, OFF, or to cycle at BLINK RATE 1 or BLINK RATE 2. Maximum output sink current is 25 mA per bit and 100 mA per package.
Any bits not used for controlling the LEDs can be used for General Purpose Parallel Input/Output (GPIO) expansion.
Power-On Reset (POR) initializes the registers to their default state, all zeroes, causing the bits to be set HIGH (LED off).
Due to pin limitations, the PCA9553 is not featured with hardware address pins. The PCA9553/01 and the PCA9553/02 have different fixed I2C-bus addresses allowing operation of both on the same bus.
Features
- 4 LED drivers (on, off, flashing at a programmable rate)
- 2 selectable, fully programmable blink rates (frequency and duty cycle) between 0.172 Hz and 44 Hz (5.82 seconds and 0.023 seconds)
- Input/outputs not used as LED drivers can be used as regular GPIOs
- Internal oscillator requires no external components
- I2C-bus interface logic compatible with SMBus
- Internal power-on reset
- Noise filter on SCL/SDA inputs
- 4 open-drain outputs directly drive LEDs to 25 mA
- Controlled edge rates to minimize ground bounce
- No glitch on power-up
- Supports hot insertion
- Low standby current
- Operating power supply voltage range of 2.3 V to 5.5 V
- 0 Hz to 400 kHz clock frequency
- ESD protection exceeds 2000 V HBM per JESD22-A114, 150 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
- Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
- Packages offered: SO8, TSSOP8 (MSOP8), HVSON8
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| PCA9553D/01 | PCA9553D/01 | 9352 728 25112 | Volume production | SOT96-1
(SO8) | Tube | Standard Marking | PCA9553D/01
| week 5, 2005 |
| PCA9553D/01 | PCA9553D/01-T | 9352 728 25118 | Volume production | SOT96-1
(SO8) | Tape reel smd | Standard Marking | PCA9553D/01
| week 5, 2005 |
| PCA9553D/02 | PCA9553D/02 | 9352 728 27112 | Volume production | SOT96-1
(SO8) | Tube | Standard Marking | PCA9553D/02
| week 5, 2005 |
| PCA9553D/02 | PCA9553D/02-T | 9352 728 27118 | Volume production | SOT96-1
(SO8) | Tape reel smd | Standard Marking | PCA9553D/02
| week 5, 2005 |
| PCA9553DP/01 | PCA9553DP/01-T | 9352 728 26118 | Volume production | SOT505-1
(TSSOP8) | Reel Pack, SMD, 13" | Standard Marking | PCA9553DP/01
| week 12, 2005 |
| PCA9553DP/02 | PCA9553DP/02-T | 9352 728 28118 | Volume production | SOT505-1
(TSSOP8) | Reel Pack, SMD, 13" | Standard Marking | PCA9553DP/02
| week 12, 2005 |
| PCA9553TK | PCA9553TK-T | 9352 821 58118 | Volume production | SOT908-1
(HVSON8) | Reel Pack, SMD, 13" | Standard Marking | PCA9553TK
| Always Pb-free |
| PCA9553TK/02 | 9352 868 81118 | Volume production | SOT908-1
(HVSON8) | Reel Pack, SMD, 13" | Standard Marking | PCA9553TK/02
|
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|
| PCA9553D/01 | 9352 728 25112 | 1.6400 | NA | ARROW ELECTRONICS | 50 | 1/6/2009 | Buy online | Order samples | |
| NA | DIGI-KEY CORPORATION | 737 | 1/6/2009 | Buy online | |||||
| PCA9553D/01 | 9352 728 25118 | 1.0100 | ASIA | WPI | 5,000 | 2500 | 01/07/2009 | Buy online | not available |
| NA | FUTURE ELECTRONICS | 2,688 | 1/7/2009 | Buy online | |||||
| NA | MOUSER ELECTRONICS | 2,428 | 1/7/2009 | Buy online | |||||
| PCA9553D/02 | 9352 728 27112 | Order samples | |||||||
| PCA9553D/02 | 9352 728 27118 | not available | |||||||
| PCA9553DP/01 | 9352 728 26118 | 0.9600 | NA | DIGI-KEY CORPORATION | 5,000 | 1/6/2009 | Buy online | Order samples | |
| NA | DIGI-KEY CORPORATION | 5,532 | 1/6/2009 | Buy online | |||||
| NA | FUTURE ELECTRONICS | 10,500 | 1/7/2009 | Buy online | |||||
| NA | MOUSER ELECTRONICS | 200 | 1/7/2009 | Buy online | |||||
| PCA9553DP/02 | 9352 728 28118 | ASIA | WPI | 7,500 | 2500 | 01/07/2009 | Buy online | Order samples | |
| PCA9553TK | 9352 821 58118 | Order samples | |||||||
| PCA9553TK/02 | 9352 868 81118 | not available |
Applications
Related applications
Digital media adapters
LCD display - discretes focus
PDA - discretes focus
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Transceiver board
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Main CPU board
Cellular phone - MMS functionality
LCD TV - MMS functionality
Set-top box - MMS functionality
Color mixing for RGBA LEDs
Design support
Application Notes
AN264;
I2C Devices for LED Display Control (22-Jul-02)
Support Documents
75016543;
An industry-leading portfolio of cost-effective, power-saving solutions for major home appliances (2008-06-01)75013239;
I 2 C Logic Selection Guide (2005-01-12)75011212;
I2C 2002-1A Evaluation Board Kit (01-Mar-03)75012744;
I2C Bus Solutions 2004 (2004-02-01)philips_i2c_handbook;
I2C Handbook (2004-01-01)UM10204_3;
I2C-bus specification and user manual (26-Jun-07)philips_i2c_logic_overview;
Interface Products Business Line Specialty Logic Product Line I2C Logic Family Overview (2004-01-01)75016189;
NXP I (2008-06-01)75010198;
PCA9530/9533/9531/9532 LED Dimmers (25-Sep-02)75010654;
PCA9550/9551/9552 (01-Dec-01)75015353;
PCA9633 - Better control of RGBA LEDs (01-Feb-06)UM10317_1;
PCA9633 demonstration board OM6282 (15-Dec-08)UM10267_1;
PCA9698 demonstration board OM6281 (26-Sep-08)Parametrics/similar products
| Type number | Package | Operating temp.(Cel) | PWMs | # of Bits | I²C-bus(kHz) | Operating voltage(VDC) | Max Sink Current per bit(mA) | # of Addresses | Max Sink Current per package(mA) |
|---|---|---|---|---|---|---|---|---|---|
| PCA9553D/01 | SOT96-1
(SO8) | -40~85 | 2 (40 Hz to 6.4 sec) | 4 | 400 | 2.3~5.5 | 25 | 1 | 100 |
| PCA9553D/02 | SOT96-1
(SO8) | -40~85 | 2 (40 Hz to 6.4 sec) | 4 | 400 | 2.3~5.5 | 25 | 1 | 100 |
| PCA9553DP/01 | SOT505-1
(TSSOP8) | -40~85 | 2 (40 Hz to 6.4 sec) | 4 | 400 | 2.3~5.5 | 25 | 1 | 100 |
| PCA9553DP/02 | SOT505-1
(TSSOP8) | -40~85 | 2 (40 Hz to 6.4 sec) | 4 | 400 | 2.3~5.5 | 25 | 1 | 100 |
| PCA9553TK | SOT908-1
(HVSON8) | -40~85 | 2 (40 Hz to 6.4 sec) | 4 | 400 | 2.3~5.5 | 25 | 1 | 100 |
Similar products
PCA9553
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