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PCA9675
Datasheet
General description
The PCA9675 provides general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional bus (I2C-bus) and is a part of the Fast-mode Plus family.
The PCA9675 is a drop in upgrade for the PCF8575 providing higher Fast-mode Plus (Fm+) I2C-bus speeds (1 MHz versus 400 kHz) so that the output can support PWM dimming of LEDs, higher I2C-bus drive (30 mA versus 3 mA) so that many more devices can be on the bus without the need for bus buffers, higher total package sink capacity (400 mA versus 100 mA) that supports having all 25 mA LEDs on at the same time and more device addresses (64 versus 8) are available to allow many more devices on the bus without address conflicts.
The device consists of a 16-bit quasi-bidirectional port and an I2C-bus interface. The PCA9675 has a low current consumption and includes latched outputs with high current drive capability for directly driving LEDs.
It also possesses an interrupt line (INT) which can be connected to the interrupt logic of the microcontroller. By sending an interrupt signal on this line, the remote I/O can inform the microcontroller if there is incoming data on its ports without having to communicate via the I2C-bus. The internal Power-On Reset (POR) or software reset sequence initializes the I/Os as inputs.
Features
- 1 MHz I2C-bus interface
- Compliant with the I2C-bus Fast and Standard modes
- SDA with 30 mA sink capability for 4000 pF buses
- 2.3 V to 5.5 V operation with 5.5 V tolerant I/Os
- 16-bit remote I/O pins that default to inputs at power-up
- Latched outputs with 25 mA sink capability for directly driving LEDs
- Total package sink capability of 400 mA
- Active LOW open-drain interrupt output
- 64 programmable slave addresses using 3 address pins
- Readable device ID (manufacturer, device type, and revision)
- 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
- Packages offered: SO24, SSOP24, QSOP24, TSSOP24, HVQFN24, DHVQFN24
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| PCA9675D | PCA9675D-T | 9352 806 68118 | Volume production | SOT137-1
(SO24) | Reel Pack, SMD, 13" | Standard Marking | PCA9675D
| Always Pb-free |
| PCA9675D | PCA9675D | 9352 806 68112 | Volume production | SOT137-1
(SO24) | Tube | Standard Marking | PCA9675D
| Always Pb-free |
| PCA9675DB | PCA9675DB | 9352 832 29112 | Volume production | SOT340-1
(SSOP24) | Tube | Standard Marking | PCA9675DB
| Always Pb-free |
| PCA9675DB | PCA9675DB-T | 9352 832 29118 | Volume production | SOT340-1
(SSOP24) | Reel Pack, SMD, 13" | Standard Marking | PCA9675DB
| Always Pb-free |
| PCA9675DK | PCA9675DK-T | 9352 832 28118 | Volume production | SOT556-1
(SSOP24) | Reel Pack, SMD, 13" | Standard Marking | PCA9675DK
| Always Pb-free |
| PCA9675PW | PCA9675PW | 9352 806 67112 | Volume production | SOT355-1
(TSSOP24) | Tube | Standard Marking | PCA9675PW
| Always Pb-free |
| PCA9675PW | PCA9675PW-T | 9352 806 67118 | Volume production | SOT355-1
(TSSOP24) | Reel Pack, SMD, 13" | Standard Marking | PCA9675PW
| Always Pb-free |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| PCA9675D | 9352 806 68118 | 1.4800 | NA | DIGI-KEY CORPORATION | 1,000 | 7/18/2008 | Buy online | not available |
| NA | DIGI-KEY CORPORATION | 949 | 7/18/2008 | Buy online | ||||
| PCA9675D | 9352 806 68112 | Order samples | ||||||
| PCA9675DB | 9352 832 29112 | NA | DIGI-KEY CORPORATION | 365 | 7/18/2008 | Buy online | Order samples | |
| PCA9675DB | 9352 832 29118 | not available | ||||||
| PCA9675DK | 9352 832 28118 | NA | DIGI-KEY CORPORATION | 2,500 | 7/18/2008 | Buy online | Order samples | |
| NA | DIGI-KEY CORPORATION | 2,450 | 7/18/2008 | Buy online | ||||
| PCA9675PW | 9352 806 67112 | NA | DIGI-KEY CORPORATION | 1,533 | 7/18/2008 | Buy online | not available | |
| PCA9675PW | 9352 806 67118 | Order samples |
Applications
- LED signs and displays
- Servers
- Industrial control
- PLCs
- Cellular telephones
- Gaming machines
- Instrumentation and test measurement
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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 | Operating temp.(Cel) | I²C-bus interface | # of Bits | Interrupt output | 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) | Reset input pin |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9675D | SOT137-1
(SO24) | -40~85 | Fast Mode Plus 30 mA SDA outputs for 4000 pF bus | 16 | yes | 0.1 | 1000 | 2.3~5.5 | yes | 25 | 64 | 400 | no |
| PCA9675DB | SOT340-1
(SSOP24) | -40~85 | Fast Mode Plus 30 mA SDA outputs for 4000 pF bus | 16 | yes | 0.1 | 1000 | 2.3~5.5 | yes | 25 | 64 | 400 | no |
| PCA9675DK | SOT556-1
(SSOP24) | -40~85 | Fast Mode Plus 30 mA SDA outputs for 4000 pF bus | 16 | yes | 0.1 | 1000 | 2.3~5.5 | yes | 25 | 64 | 400 | no |
| PCA9675PW | SOT355-1
(TSSOP24) | -40~85 | Fast Mode Plus 30 mA SDA outputs for 4000 pF bus | 16 | yes | 0.1 | 1000 | 2.3~5.5 | yes | 25 | 64 | 400 | no |
Similar products
PCA9675 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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