SY55858UHI

Voltage Supply Source: Single Supply
Mounting Type: Surface Mount
Operating Temperature: -40°C ~ 85°C
Voltage - Supply, Single/Dual (±): 2.3 V ~ 3.6 V
Function: Crosspoint Switch
On-State Resistance: -
Packaging: Tray
Series: SuperLite®
Manufacturer: Micrel Inc
Circuit: 2 x 2:2
Current - Supply: 150mA
Package / Case: 32-TQFP Exposed Pad
Supplier Device Package: 32-EPAD-TQFP


Features:

` Guaranteed AC parameters over temperature:
• fMAX > 3.0GHz (3Gbps)
• tr/ tf < 120ps
• Within-device skew < 25ps
` Non-blocking "switch architecture"
` Configurable as dual 2:1 mux, dual 1:2 fanout buffer,
  1:4 fanout buffer, quad buffer, or dual 2 x 2 switch
` 50 compatible outputs
` Unique input termination and VT pin for DC-coupled
   and AC-coupled input signalsCML or PECL
` Fully differential inputs/outputs
` TTL/CMOS compatible control logic
` Wide supply voltage range: 2.3V to 3.6V
` Wide operating temperature range: 40°C to +85°C
` Available in 32-pin EPAD-TQFP package


Application

·  SONET/SDH optical transport
·  Backplane redundancy
·  Add-drop Multiplexers


Pinout




Specifications

Symbol	Rating	Value	Unit
VCC	Power Supply Voltage	0.5 to +6.0	V
VIN	Input Voltage (VCC = 0V, VIN not more negative than VEE) Input Voltage (VEE = 0V, VIN not more positive than VCC)	0.5 to VCC +0.5	V V
IOUT	Output Current Continuous Surge	VCC 1.0 to VCC +0.5	mA
TLEAD	Lead Temperature (soldering, 20sec.)	+260	°C
TA	Operating Temperature Range	40 to +85	°C
Tstore	Storage Temperature Range	65 to +150	°C
JA	Package Thermal Resistance Still-Air (SOIC) (Junction-to-Ambient) 500lfpm (SOIC)	28 20	°C/W °C/W
JC	Package Thermal Resistance (SOIC) (Junction-to-Case) (MSOP)	4	°C/W

Note 1. Permanent device damage may occur if absolute maximum ratings are exceeded. This is a stress rating only and functional operation is not
implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to absolute maximum ratlng conditions
for extended periods may affect device reliability.


Description

The SY55858U is a low-voltage, high-speed dual 2 x 2 crosspoint switch with a flexible input that accepts CML or PECL, and a 50 compatible differential CML (currentmode logic) output. The non-blocking design allows any input to connect to any output. Varying the state of the select inputs allows SY55858U to be used in backup, fault tolerant, protection and backplane distribution applications.

The signal inputs (DA01 and DB01) have a unique internal termination design that allows access to the termination network through VT pins. This feature allows the SY55858U to easily interface to other logic standards such as AC-coupled or DC-coupled PECL/LVPECL signals. For applications that require a single-channel 2 x 2 crosspoint, consider the SY55854.

Parameters:

Technical/Catalog Information	SY55858UHI
Vendor	Micrel Inc
Category	Integrated Circuits (ICs)
Type	Crosspoint Switch
Voltage Supply Source	Single Supply
Voltage - Supply, Single/Dual (±)	2.3 V ~ 3.6 V
Circuit	2 x 2:2
On-State Resistance	-
Mounting Type	Surface Mount
Package / Case	32-TQFP
Packaging	Tray
Current - Supply	150mA
Operating Temperature	-40°C ~ 85°C
Function	Crosspoint Switch
Drawing Number	*
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	SY55858UHI SY55858UHI