Specification	SY89843UMG

Circuit [custom]	2:1
Circuit [custom]	1
Independent Circuits	1
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	24-MLF®, 24-VFQFN Exposed Pad
Supplier Device Package	24-MLF® (4x4)
Type	Multiplexer
Voltage - Supply [Max]	3.6 V, 2.625 V
Voltage - Supply [Min]	2.375 V, 3 V
Voltage Supply Source	Single Supply

SY89843U Series

Part	Type	Supplier Device Package	Circuit [custom]	Circuit [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Package / Case	Voltage - Supply [Max]	Voltage - Supply [Min]	Voltage Supply Source	Independent Circuits
Microchip Technology SY89843UMG	Multiplexer	24-MLF® (4x4)	2:1	1	85 °C	-40 °C	Surface Mount	24-MLF® 24-VFQFN Exposed Pad	2.625 V 3.6 V	2.375 V 3 V	Single Supply	1

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 6.22
		25	$ 5.19
		100	$ 4.71
Microchip Direct	TUBE	1	$ 6.22
		25	$ 5.19
		100	$ 4.71
		1000	$ 4.55
		5000	$ 4.50

Description

General part information

SY89843U Series

The SY89843U is a low jitter PECL, 2:1 differential input multiplexer (MUX) optimized for redundant source switchover applications. Unlike standard multiplexers, the SY89843U unique 2:1 Runt Pulse Eliminator (RPE) MUX prevents any short cycles or "runt" pulses during switchover. In addition, a unique Fail-Safe Input protection prevents metastable conditions when the selected input clock fails to a DC voltage (voltage between the pins of the differential input drops below 100mV).The differential input includes Micrel's unique, 3-pin input termination architecture that allows customers to interface to any differential signal (AC- or DC-coupled) as small as 100mV (200mVpp) without any level shifting or termination resistor networks in the signal path. The output is 800mV, 100K compatible LVPECL with fast rise/fall times guaranteed to be less than 190ps.The SY89843U operates from a 2.5V ±5% or 3.3V ±10% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. The SY89843U is part of Micrel's high-speed, Precision Edge® product line.