See datasheet for actual packaging/pinout drawings


Package | PIN:

DB | 24


I (-40 to 85)

ECO Plan:

Green (RoHS & no Sb/Br)


Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output

TI Store Price:

1 - 9 $ 2.71
10 - 24 $ 2.44
25 - 99 $ 2.18
100 - 249 $ 1.96
250 - 499 $ 1.77
500 - 749 $ 1.47
750 - 999 $ 1.21
1000 - 9999 $ 0.99

Adjust your quantity during checkout

Texas Instruments PCF8575CDBR

This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 4.5-V to 5.5-V VCC operation.

The PCF8575C provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface serial clock (SCL) and serial data (SDA).

The device features a 16-bit quasi-bidirectional input/output (I/O) port (P07–P00, P17–P10), including latched outputs with high-current drive capability for directly driving LEDs. Each quasi-bidirectional I/O can be used as an input or output without the use of a data-direction control signal. At power on, the I/Os are in 3-state mode. The strong pullup to VCC allows fast-rising edges into heavily loaded outputs. This device turns on when an output is written high and is switched off by the negative edge of SCL. The I/Os should be high before being used as inputs. After power on, as all the I/Os are set to 3-state, all of them can be used as inputs. Any change in setting of the I/Os as either inputs or outputs can be done with the write mode. If a high is applied externally to an I/O that has been written earlier to low, a large current (IOL) flows to GND.

View datasheet
View product folder
Order SummaryEdit >
Subtotal: $0.00
Shipping & Handling: -
Total (USD): $0.00