557G-05ALFT Overview
There is a package named Tape & Reel (TR) that contains it. As part of the packaging, there is a serial number 20-TSSOP (0.173, 4.40mm Width) associated with the product. Clock program is recommended to mount Surface Mount on the wall. As of the moment, the device has 1. In a normaloperation, there is 200MHz maximum frequency. Temperatures can be varied in the operating range of 0°C~70°C. A component can supply 3.135V~3.465V voltage. This component serves a single purpose PCI Express (PCIe). This output is intended to be HCSL, LVDS. Search for information about this part by using the ICS557-05 base part number. The company uses 20-TSSOP as its supplier of devices for its products.
557G-05ALFT Features
Mounting Type: Surface Mount
Include 1 Circuits
run the output at th range of HCSL, LVDS

557G-05ALFT Applications
There are a lot of Renesas Electronics America Inc.
557G-05ALFT application specific timer applications.

Any-frequency clock conversion
MSAN/DSLAM/PON
Fibre Channel, SAN
Telecom line cards
1 GbE and 10 GbE
Servers, Storage, Search Acceleration
Ethernet Switches, Routers
Small Cells, Mobile Backhaul/Fronthaul
Print Imaging
Communications

Factory Lead Time	12 Weeks
Mounting Type	Surface Mount
Package / Case	20-TSSOP (0.173, 4.40mm Width)
Supplier Device Package	20-TSSOP
Operating Temperature	0°C~70°C
Packaging	Tape & Reel (TR)
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Voltage - Supply	3.135V~3.465V
Base Part Number	ICS557-05
Output	HCSL, LVDS
Number of Circuits	1
Frequency (Max)	200MHz
Input	Clock, Crystal
Ratio - Input:Output	1:4
PLL	Yes
Differential - Input:Output	No/Yes
Main Purpose	PCI Express (PCIe)
RoHS Status	ROHS3 Compliant
Factory Lead Time	7 Weeks
Mount	Surface Mount
Package / Case	TSSOP
Number of Pins	20
Published	1999
JESD-609 Code	e3
Pbfree Code	yes
Number of Terminations	20
ECCN Code	EAR99
Terminal Finish	Matte Tin (Sn) - annealed
Max Operating Temperature	70°C
Min Operating Temperature	0°C
Terminal Position	DUAL
Terminal Form	GULL WING
Peak Reflow Temperature (Cel)	260
Supply Voltage	3.3V
Terminal Pitch	0.65mm
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Pin Count	20
Qualification Status	Not Qualified
Operating Supply Voltage	3.3V
Temperature Grade	COMMERCIAL
Max Supply Voltage	3.465V
Min Supply Voltage	3.135V
Input	Clock
Primary Clock/Crystal Frequency-Nom	25MHz
Length	6.5mm
Width	4.4mm
Thickness	1mm
RoHS Status	RoHS Compliant
Lead Free	Lead Free