PCA9570 | NXP Semiconductors

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Remote 4-Bit General Purpose Outputs for 1 MHz I²C-Bus

PCA9570 Active

The PCA9570 is a CMOS device that provides 4 bits of General Purpose parallel Output (GPO) expansion in low voltage processor and handheld battery powered mobile applications. It operates at 1 MHz I²C‑bus speeds while maintaining backward compatibility to Fast-mode (400 kHz) and Standard-mode (100 kHz).

The PCA9570 is a streamlined GPO that consists of 4-bit push-pull outputs that offer low current consumption, small packaging options and a low operating voltage range of 1.1 V to 3.6 V. The latched outputs are symmetrical 4 mA current drive capability at 3.3 V to drive various control logic. The PCA9570 output expander provides a simple solution when additional outputs are needed while keeping interconnections and floor space to a minimum, for example, in battery powered mobile applications where PCBs are crowded for interfacing to sensors, push buttons, etc.

The PCA9570 contains an internal Power-On Reset (POR) and a Software Reset feature that initializes the device to its default state.

Block Diagram

PCA9570

PCA9570 Block Diagram
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Features

Key Features

  • 1 MHz I²C-bus interface with 6 mA SDA sink capability for lightly loaded buses (<100 pF) and improved power consumption
  • Compliant with the I²C-bus Fast and Standard modes
  • 1.1 V to 3.6 V operation
  • Latched outputs with a sink/source capability of 4 mA at 3.3 V
  • Readable device ID (manufacturer, device type, and revision)
  • Software Reset
  • Power-On Reset
  • Low standby current
  • -40 °C to +85 °C operation
  • ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101
  • Latch-up testing is done to JEDEC standard JESD78 which exceeds 100 mA
  • Packages offered: TSSOP8, XQFN8 (0.4 mm lead pitch), XQFN8 (0.5 mm lead pitch)

Buy/Parametrics

1 result

Include 2 NRND

Part

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CAD Model

Status

Budgetary Price excluding tax

No of bits

VDD [min]

VDD [max]

No of supplies

Standby current [typ] (µA)

Max Sink Current per bit (mA)

Max Sink Current, per package (mA)

Source Current per bit (mA)

Output mode

I2C-bus (kHz)

Footprint body and leads

Package Type

Operating Temperature (°C)

No of Addresses

Remark

PCA9570GM
Data Sheet

Active

1K @ US$0.21

4

1.1

3.6

1

0.6

4

16

4

Totem pole

1000

2.72

XQFN8

-40~85

1

Output only

N true 0 PSPPCA9570en 4 Data Sheet Data Sheet t520 1 Package Information Package Information t790 2 Packing Information Packing Information t935 1 en_US en_US en Data Sheet Data Sheet 1 1 5.0 English 1442060519448712253227 PSP 1.8 MB None None documents None 1442060519448712253227 /docs/en/data-sheet/PCA9570.pdf 1767466 /docs/en/data-sheet/PCA9570.pdf PCA9570 documents N N 2017-11-23 Remote 4-bit general purpose outputs for 1 MHz I2C-bus /docs/en/data-sheet/PCA9570.pdf /docs/en/data-sheet/PCA9570.pdf Data Sheet N 980000996212993340 2022-12-07 pdf N en Nov 16, 2017 980000996212993340 Data Sheet Y N Remote 4-bit general purpose outputs for 1 MHz I2C-bus Package Information Package Information 2 2 1.4 English 1455079478538727563146 PSP 207.5 KB None None documents None 1455079478538727563146 /docs/en/package-information/SOT902-2.pdf 207508 /docs/en/package-information/SOT902-2.pdf SOT902-2 documents N N 2016-10-08 plastic, extremely thin quad flat package; 8 terminals; 0.55 mm pitch; 1.6 mm x 1.6 mm x 0.5 mm body /docs/en/package-information/SOT902-2.pdf /docs/en/package-information/SOT902-2.pdf Package Information N 302435339416912908 2024-03-12 pdf N en Feb 6, 2017 302435339416912908 Package Information Y N plastic, extremely thin quad flat package; 8 terminals; 0.55 mm pitch; 1.6 mm x 1.6 mm x 0.5 mm body PDF 3 1.0 English 1455078853160713257047 PSP 185.6 KB None None documents None 1455078853160713257047 /docs/en/package-information/SOT1309-1.pdf 185611 /docs/en/package-information/SOT1309-1.pdf SOT1309-1 documents N N 2016-02-12 plastic, extremely thin quad flat package; no leads /docs/en/package-information/SOT1309-1.pdf /docs/en/package-information/SOT1309-1.pdf Package Information N 302435339416912908 2023-10-17 pdf N en Feb 8, 2016 302435339416912908 Package Information Y N plastic, extremely thin quad flat package; no leads Packing Information Packing Information 1 4 1.0 English 1442131318517721071606 PSP 205.4 KB None None documents None 1442131318517721071606 /docs/en/packing/SOT902-2_125.pdf 205409 /docs/en/packing/SOT902-2_125.pdf SOT902-2_125 documents N N 2013-05-02 XQFN8(U); Reel pack, reverse; SMD, 7" Q3/T4 Standard product orientation Orderable part number ending ,125 or H Ordering code (12NC) ending 125 /docs/en/packing/SOT902-2_125.pdf /docs/en/packing/SOT902-2_125.pdf Packing Information N 145666923842250347 2024-03-13 pdf N en May 2, 2013 145666923842250347 Packing Information Y N XQFN8(U); Reel pack, reverse; SMD, 7" Q3/T4 Standard product orientation Orderable part number ending ,125 or H Ordering code (12NC) ending 125 false 0 PCA9570 downloads en true 1 Y PSP Y Y Data Sheet 1 /docs/en/data-sheet/PCA9570.pdf 2017-11-23 1442060519448712253227 PSP 1 Nov 16, 2017 Data Sheet None /docs/en/data-sheet/PCA9570.pdf English documents 1767466 None 980000996212993340 2022-12-07 N /docs/en/data-sheet/PCA9570.pdf Remote 4-bit general purpose outputs for 1 MHz I2C-bus /docs/en/data-sheet/PCA9570.pdf documents 980000996212993340 Data Sheet N en None Y pdf 5.0 N N Remote 4-bit general purpose outputs for 1 MHz I2C-bus 1.8 MB PCA9570 N 1442060519448712253227 Package Information 2 /docs/en/package-information/SOT902-2.pdf 2016-10-08 1455079478538727563146 PSP 2 Feb 6, 2017 Package Information PDF None /docs/en/package-information/SOT902-2.pdf English documents 207508 None 302435339416912908 2024-03-12 N /docs/en/package-information/SOT902-2.pdf plastic, extremely thin quad flat package; 8 terminals; 0.55 mm pitch; 1.6 mm x 1.6 mm x 0.5 mm body /docs/en/package-information/SOT902-2.pdf documents 302435339416912908 Package Information N en None Y pdf 1.4 N N plastic, extremely thin quad flat package; 8 terminals; 0.55 mm pitch; 1.6 mm x 1.6 mm x 0.5 mm body 207.5 KB SOT902-2 N 1455079478538727563146 /docs/en/package-information/SOT1309-1.pdf 2016-02-12 1455078853160713257047 PSP 3 Feb 8, 2016 Package Information None /docs/en/package-information/SOT1309-1.pdf English documents 185611 None 302435339416912908 2023-10-17 N /docs/en/package-information/SOT1309-1.pdf plastic, extremely thin quad flat package; no leads /docs/en/package-information/SOT1309-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N N plastic, extremely thin quad flat package; no leads 185.6 KB SOT1309-1 N 1455078853160713257047 Packing Information 1 /docs/en/packing/SOT902-2_125.pdf 2013-05-02 1442131318517721071606 PSP 4 May 2, 2013 Packing Information None /docs/en/packing/SOT902-2_125.pdf English documents 205409 None 145666923842250347 2024-03-13 N /docs/en/packing/SOT902-2_125.pdf XQFN8(U); Reel pack, reverse; SMD, 7" Q3/T4 Standard product orientation Orderable part number ending ,125 or H Ordering code (12NC) ending 125 /docs/en/packing/SOT902-2_125.pdf documents 145666923842250347 Packing Information N en None Y pdf 1.0 N N XQFN8(U); Reel pack, reverse; SMD, 7" Q3/T4 Standard product orientation Orderable part number ending ,125 or H Ordering code (12NC) ending 125 205.4 KB SOT902-2_125 N 1442131318517721071606 true Y Products

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