UTRS485G-S08-R datasheet(5/8 Pages) UTC

5 / 8 page

UTRS485

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

5 of 8

www.unisonic.com.tw

QW-R113-011.c



SWITCHING CHARACTERISTICS

(VCC=+5.0V ±5%, TA=TMIN to TMAX, unless otherwise noted.) (Note 1, 2)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX

UNIT

tPLH

100

Driver Input to Output

tPHL

Fig.3 and 5, RDIFF=54Ω, CL1=CL2=100pF

100

Driver Output Skew to Output

tSKEW

Fig.3 and 5, RDIFF=54Ω, CL1=CL2=100pF

Driver Rise or Fall Time

tDR, tDF Fig.3 and 5, RDIFF=54Ω, CL1=CL2=100pF

Driver Enable to Output High

tZH

Fig.4 and 6, CL=100pF, S2 Closed

150

Driver Enable to Output Low

tZL

Fig.4 and 6, CL=100pF, S1 Closed

150

Driver Disable Time from Low

tLZ

Fig.4 and 6, CL=15pF, S1 Closed

150

Driver Disable Time from High

tHZ

Fig.4 and 6, CL=15pF, S2 Closed

150

Receiver Input to Output

tPLH,

tPHL

Fig.3 and 7, RDIFF=54Ω, CL1=CL2=100pF

500

1000

|tPLH - tPHL| Differential

Receiver Skew

tSKD

Fig.3 and 7, RDIFF=54Ω, CL1=CL2=100pF

100

Receiver Enable to Output Low

tZL

Fig.2 and 8, CRL=15pF, S1 Closed

Receiver Enable to Output High

tZH

Fig.2 and 8, CRL=15pF, S2 Closed

Receiver Disable Time from Low

tLZ

Fig.2 and 8, CRL=15pF, S1 Closed

Receiver Disable Time from

High

tHZ

Fig.2 and 8, CRL=15pF, S2 Closed

Notes: 1. All currents into the device are positive; all currents out of the device are negative. All voltages are

referenced to device ground unless otherwise specified.

2. All typical specifications are given for VCC=5V and TA=+25°C

3. Supply current specification is valid for loaded transmitters when DE=0V

4. Applies to peak current

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