Skip to Main Content

Part of the TTI Family of SpecialistsContact Mouser (London) +44 (0) 1494-427500Feedback

Change LocationEnglish

+44 (0) 1494-427500 Change Location

In Stock

RoHS

.hide-partial { max-height: none; } .show-more { display: none; }

PCA9557 Series Interface - I/O Expanders

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 8

Applied Filters:

Series = PCA9557

Manufacturer

Package/Case

Supply Voltage - Min

Supply Voltage - Max

Packaging

ESD Protection

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Series	Mounting Style	Package/Case	Interface Type	Number of I/Os	Interrupt Output	Supply Voltage - Min	Supply Voltage - Max	Maximum Clock Frequency	Minimum Operating Temperature	Maximum Operating Temperature	Packaging	ESD Protection
	Interface - I/O Expanders Remote 8B I2C & SMBu s Lo-Pwr I/O Exp PCA9557DGVR Texas Instruments 1: £2.44 2,308In Stock	Mfr. Part No. PCA9557DGVR Mouser Part No 595-PCA9557DGVR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & SMBu s Lo-Pwr I/O Exp	Datasheet	2,308In Stock	Cut Tape £2.44 £1.83 £1.68 £1.52 View Reel £1.21 £1.43 £1.41 £1.34 £1.21 MouseReel Available	Min.: 1 Mult.: 1 : 2,000			PCA9557	SMD/SMT	TVSOP-16	I2C, Serial, SMBus	8 I/O	Without Interrupt	2.5 V	6 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
	Interface - I/O Expanders Remote 8B I2C & SMBu s Lo-Pwr I/O Exp A A 595-PCA9557DB PCA9557DBR Texas Instruments 1: £2.17 2,174In Stock	Mfr. Part No. PCA9557DBR Mouser Part No 595-PCA9557DBR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & SMBu s Lo-Pwr I/O Exp A A 595-PCA9557DB	Datasheet	2,174In Stock	Cut Tape £2.17 £1.62 £1.48 £1.33 View Reel £1.09 £1.26 £1.23 £1.17 £1.09 MouseReel Available	Min.: 1 Mult.: 1 : 2,000			PCA9557	SMD/SMT	SSOP-16	I2C, Serial, SMBus	8 I/O	Without Interrupt	2.5 V	6 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
	Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander A 595-PCA9557DBR PCA9557DB Texas Instruments 1: £2.99 400In Stock	Mfr. Part No. PCA9557DB Mouser Part No 595-PCA9557DB	Texas Instruments	Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander A 595-PCA9557DBR	Datasheet	400In Stock	£2.99 £2.23 £2.04 £1.82 View £1.73 £1.69 £1.61 £1.58 £1.57	Min.: 1 Mult.: 1			PCA9557	SMD/SMT	SSOP-16	I2C, Serial, SMBus	8 I/O	Without Interrupt	2.5 V	6 V	400 kHz	- 40 C	+ 85 C	Tube	2 kV
	Interface - I/O Expanders Remote 8B I2C & SMBu s Lo-Pwr I/O Exp A A 595-PCA9557D PCA9557DR Texas Instruments 1: £1.32 2,701In Stock	Mfr. Part No. PCA9557DR Mouser Part No 595-PCA9557DR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & SMBu s Lo-Pwr I/O Exp A A 595-PCA9557D Learn More about Texas Instruments ti pca95xx	Datasheet	2,701In Stock	Cut Tape £1.32 £0.969 £0.882 £0.78 Reel £0.676 View £0.733 £0.705 £0.702 £0.643 MouseReel Available	Min.: 1 Mult.: 1 : 2,500			PCA9557	SMD/SMT	SOIC-Narrow-16	I2C, Serial, SMBus	8 I/O	Without Interrupt	2.5 V	6 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
	Interface - I/O Expanders Remote 8B I2C & SMBu s Lo-Pwr I/O Exp PCA9557RGYR Texas Instruments 1: £2.17 2,750In Stock	Mfr. Part No. PCA9557RGYR Mouser Part No 595-PCA9557RGYR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & SMBu s Lo-Pwr I/O Exp	Datasheet	2,750In Stock	Cut Tape £2.17 £1.62 £1.48 £1.34 Reel £1.26 View £1.26 £1.14 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			PCA9557	SMD/SMT	VQFN-16	I2C, Serial, SMBus	8 I/O	Without Interrupt	2.5 V	6 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
	Interface - I/O Expanders Remote 8B I2C & SMBu s I/O Expander A 59 A 595-PCA9557PW PCA9557PWR Texas Instruments 1: £1.55 3,386In Stock	Mfr. Part No. PCA9557PWR Mouser Part No 595-PCA9557PWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & SMBu s I/O Expander A 59 A 595-PCA9557PW Learn More about Texas Instruments ti pca95xx	Datasheet	3,386In Stock	Cut Tape £1.55 £1.14 £1.05 £0.934 Reel £0.811 View £0.882 £0.849 £0.826 £0.796 MouseReel Available	Min.: 1 Mult.: 1 : 2,000			PCA9557	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	Without Interrupt	2.5 V	6 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Reset in TSSOP16 package PCA9557PW,118 NXP Semiconductors 1: £1.59 12,512In Stock 32,500Expected 17/11/2026	Mfr. Part No. PCA9557PW,118 Mouser Part No 771-PCA9557PW-T	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Reset in TSSOP16 package	Datasheet	12,512In Stock 32,500Expected 17/11/2026	Cut Tape £1.59 £1.20 £1.07 £0.978 Reel £0.834 View £0.925 £0.89 £0.882 £0.826 MouseReel Available	Min.: 1 Mult.: 1 : 2,500			PCA9557	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	Without Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
	Interface - I/O Expanders Remote 8-Bit I2C and SMBus LP I/O Exp PCA9557RGVR Texas Instruments 1: £1.52 25,000On Order	Mfr. Part No. PCA9557RGVR Mouser Part No 595-PCA9557RGVR	Texas Instruments	Interface - I/O Expanders Remote 8-Bit I2C and SMBus LP I/O Exp Learn More about Texas Instruments ti pca95xx	Datasheet	25,000On Order On Order Ship Dates Mfr. No: PCA9557RGVR Stock: 0 On Order: 2,500 Expected 10/12/2026 2,500 Expected 21/12/2026 10,000 Expected 25/12/2026 10,000 Expected 21/01/2027 Factory Lead Time: 9 Weeks	Cut Tape £1.52 £1.12 £1.02 £0.89 Reel £0.746 View £0.841 £0.811 £0.796 £0.725 MouseReel Available	Min.: 1 Mult.: 1 : 2,500			PCA9557	SMD/SMT	VQFN-16	I2C, Serial, SMBus	8 I/O	Without Interrupt	2.5 V	6 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV