PCA9670D: Remote 8-bit I/O expander for Fm+ I²C-bus with reset
The PCA9670 provides general-purpose remote I/O expansion via the two-wire
bidirectional I²C‑bus (serial clock (SCL), serial data (SDA)).
The devices consist of eight quasi-bidirectional ports, 1 MHz 30 mA drive I²C‑bus
interface, three hardware address inputs and a reset input operating between 2.3 V and
5.5 V. 1 MHz I²C‑bus Fast‑mode Plus (Fm+) can support PWM dimming of LEDs, and
higher I²C‑bus drive 30 mA allows more devices to be on the bus without the need for bus
buffers. The quasi-bidirectional port can be independently assigned as an input to monitor
interrupt status or keypads, or as an output to activate indicator devices such as LEDs.
The system master can read from the input port or write to the output port through a single
register
The low current consumption of 2.5 μA (typical, static) is great for mobile applications and
the latched output ports have 25 mA high current sink drive capability for directly driving
LEDs.
The PCA9670 has three hardware address pins and allows up to 64 of these PCA9670
I/O expanders on the same I²C‑bus without the need for bus buffers, supporting up to
512 I/Os (for example, 512 LEDs).
The internal Power-On Reset (POR) and active LOW hardware reset pin (RESET)
initialize the I/Os as inputs with a weak internal pull-up 100 μA current source.
PCA9670D: Product Block Diagram
Outline 3d SOT162-1
Data Sheets (1)
Application Notes (3)
Users Guides (4)
Brochures (3)
Package Information (1)
Packing (1)
Supporting Information (2)
IBIS Model
Ordering Information
Product | Status | No of bits | VDD [min] (V) | VDD [max] (V) | Over volt tolerant | No of supplies | Standby current [typ] (µA) | Max Sink Current per bit (mA) | Max Sink Current, per package (mA) | Source Current per bit (mA) | Reset input pin | Output mode | Internal pull-up resistor per bit (kOhm) | I2C-bus (kHz) | Footprint body and leads (mm2) | Package name | Package version | Operating Temperature (Cel) | No of Addresses |
---|
PCA9670D | Active | 8 | 2.3 | 5.5 | Y | 1 | 2.5 | 25 | 200 | 0.1 | Y | Quasi | Int I source | 1000 | 111.83 | SO16 | SOT162-1 | -40~85 | 64 |
Package Information
Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | EFR | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
---|
PCA9670D | | SOT162-1 | SO-SOJ-REFLOW
SO-SOJ-WAVE SO-SOJ-REFLOW
SO-SOJ-WAVE | Reel 13" Q1/T1 in Drypack | Active | PCA9670D,518
(9352 827 15518) | PCA9670D | PCA9670D | | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 2 |
Tube in Drypack | Active | PCA9670D,512
(9352 827 15512) | PCA9670D | PCA9670D | | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 2 |