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PCA9505/06
General description
The PCA9505/PCA9506 provide 40-bit parallel input/output (I/O) port expansion for I2C-bus applications organized in 5 banks of 8 I/Os. At 5 V supply voltage, the outputs are capable of sourcing 10 mA and sinking 15 mA with a total package load of 600 mA to allow direct driving of 40 LEDs. Any of the 40 I/O ports can be configured as an input or output. Output ports are totem-pole and their logic state changes at the Acknowledge (bank change). The PCA9505 is identical to the PCA9506 except that it includes 100 kOhm internal pull-up resistors on all the I/Os. The PCA9506 does not include the internal pull-ups on the I/Os to reduce power consumption when used as outputs or when the input is driven by a push-pull driver.
The device can be configured to have each input port to be masked in order to prevent it from generating interrupts when its state changes and to have the I/O data logic state to be inverted when read by the system master.
An open-drain interrupt (INT) output pin allows monitoring of the input pins and is asserted each time a change occurs in one or several input ports (unless masked).
The Output Enable (OE) pin 3-states any I/O selected as an output and can be used as an input signal to blink or dim LEDs (PWM with frequency > 80 Hz and change duty cycle).
The internal Power-On Reset (POR) or hardware reset (RESET) pin initializes the 40 I/Os as inputs. Three address select pins configure one of 8 slave addresses.
The PCA9506 is available in 56-pin TSSOP and HVQFN packages, while the PCA9505 is available only in a TSSOP package. They are both specified over the -40 Cel to +85 Cel industrial temperature range.
Features
- Standard mode (100 kHz) and Fast mode (400 kHz) compatible I2C-bus serial interface
- 2.3 V to 5.5 V operation with 5.5 V tolerant I/Os
- 40 configurable I/O pins that default to inputs at power-up
- PCA9505 includes 100 kOhm internal pull-up resistors on all the I/Os
- Outputs:
- Totem-pole (10 mA source, 15 mA sink) with controlled edge rate output structure
- Active LOW output enable (OE) input pin 3-states all outputs
- Output state change on Acknowledge
- Open-drain active LOW interrupt (INT) output pin allows monitoring of logic level change of pins programmed as inputs
- Inputs:
- Programmable Interrupt Mask Control for input pins that do not require an interrupt when their states change
- Polarity Inversion register allows inversion of the polarity of the I/O pins when read
- Active LOW reset (RESET) input pin resets device to power-up default state
- 3 programmable address pins allowing 8 devices on the same bus
- Designed for live insertion
- Minimize line disturbance (IOFF and power-up 3-state)
- Signal transient rejection (50 ns noise filter and robust I2C-bus state machine)
- Low standby current
- -40 Cel to +85 Cel operation
- ESD protection exceeds 2000 V HBM per JESD22-A114, 200 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
- Offered in TSSOP56 (PCA9505, PCA9506) and HVQFN56 (PCA9506) packages
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| PCA9505DGG | PCA9505DGG | 9352 844 86112 | Volume production | SOT364-1
(TSSOP56) | Tube | Standard Marking | PCA9505DGG
| |
| PCA9505DGG | PCA9505DGG-T | 9352 844 86118 | Volume production | SOT364-1
(TSSOP56) | Reel Pack, SMD, 13" | Standard Marking | PCA9505DGG
| |
| PCA9506BS | PCA9506BS-T | 9352 815 75118 | Volume production | SOT684-1
(HVQFN56) | Reel Pack, SMD, 13" | Standard Marking | PCA9506BS
| Always Pb-free |
| PCA9506DGG | PCA9506DGG | 9352 807 98512 | Volume production | SOT364-1
(TSSOP56) | Tube Dry Pack | Standard Marking | PCA9506DGG
| Always Pb-free |
| PCA9506DGG | PCA9506DGG-T | 9352 807 98518 | Volume production | SOT364-1
(TSSOP56) | Reel Dry Pack, SMD, 13" | Standard Marking | PCA9506DGG
| Always Pb-free |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| PCA9505DGG | 9352 844 86112 | NA | DIGI-KEY CORPORATION | 585 | 6/29/2008 | Buy online | not available | |
| PCA9505DGG | 9352 844 86118 | Order samples | ||||||
| PCA9506BS | 9352 815 75118 | NA | DIGI-KEY CORPORATION | 2,751 | 6/29/2008 | Buy online | Order samples | |
| NA | DIGI-KEY CORPORATION | 2,000 | 6/29/2008 | Buy online | ||||
| NA | ARROW ELECTRONICS | 2,000 | 7/4/2008 | Buy online | ||||
| PCA9506DGG | 9352 807 98512 | 2.6000 | NA | AVNET ELECTRONICS MARKETING | 832 | 7/4/2008 | Buy online | not available |
| NA | ARROW ELECTRONICS | 660 | 7/4/2008 | Buy online | ||||
| NA | DIGI-KEY CORPORATION | 193 | 6/29/2008 | Buy online | ||||
| NA | FUTURE ELECTRONICS | 32 | 7/4/2008 | Buy online | ||||
| PCA9506DGG | 9352 807 98518 | 2.6000 | NA | MOUSER ELECTRONICS | 1,729 | 7/6/2008 | Buy online | Order samples |
Applications
- Servers
- RAID systems
- Industrial control
- Medical equipment
- PLCs
- Cell phones
- Gaming machines
- Instrumentation and test measurement
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Cellular phone - MMS functionality
LCD TV - MMS functionality
Set-top box - MMS functionality
Technical documents
Application Notes
Support Documents
75011212;
I2C 2002-1A Evaluation Board Kit (01-Mar-03)
UM10204_3;
I2C-bus specification and user manual (26-Jun-07)
Parametrics/similar products
| Type number | Package | INTERRUPT | Operating temp.(Cel) | # of Bits | Source Current per bit(mA) | I²C-bus(kHz) | Operating voltage(VDC) | Weak Pull-Up Current Source | Max Sink Current per bit(mA) | # of Addresses | Max Sink Current per package(mA) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9505DGG | SOT364-1
(TSSOP56) | 0-1 | -40~85 | 40 | 10 | 400 | 2.3~5.5 | Yes | 25 | 8 | 500 |
| PCA9506BS | SOT684-1
(HVQFN56) | 0-1 | -40~85 | 40 | 10 | 400 | 2.3~5.5 | no internal pull up resistor | 25 | 8 | 500 |
| PCA9506DGG | SOT364-1
(TSSOP56) | 0-1 | -40~85 | 40 | 10 | 400 | 2.3~5.5 | no internal pull up resistor | 25 | 8 | 500 |
Similar products
PCA9505/06 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
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