US5C3309G-SM1-R datasheet(4/6 Pages) UTC

4 / 6 page

US5C3309

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 6

www.unisonic.com.tw

QW-R121-027.a



CAPACITANCE (TA=25°C, f =1MHz)

PARAMETER (Note 1)

SYMBOL

TEST CONDITIONS (Note 1)

MIN

TYP

MAX

UNIT

Input Capacitance

CIN

IA Capacitance, Switch Off

COFF

IA Capacitance, Switch On

CON

VIN=0V

Note: This parameter is determined by device characterization but is not production tested.



SWITCHING CHARACTERISTICS OVER OPERATING RANGE (CL=50pF, RL=500Ω)

Com

PARAMETER

DESCRIPTION

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Propagation Delay (Note 1, 2) IN to YN

tIY

0.25

Bus Select Time SN to YN

tSY

0.5

6.6

Bus Enable Time SN to YN

tPZH/tPZL

0.5

6.0

Bus Disable Time SN to YN

tPHZ/tPLZ

CL=50pF, RL=500Ω

0.5

6.0

Notes: 1. This parameter is guaranteed but not tested on Propagation Delays.

2. The bus switch contributes no propagational delay other than the RC delay of the On-Resistance of the

switch and the load capacitance. The time constant for the switch alone is of the order of 0.25ns for 50pF

load. Since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very

little propagational delay to the system. Propagational delay of the bus switch when used in a system is

determined by the driving circuit on the driving side of the switch and its interaction with the load on the

driven side.

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