UT84520 데이터 시트보기 (PDF) - Unisonic Technologies

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UT84520

PS/2 SCROLLING MOUSE CONTROLLER

Unisonic Technologies 

UTC UT84520

AC Electrical Characteristics (Ta = 25 ℃ to 70 ℃)

PARAMETER

Oscillating Frequency

Key Debounce

Rising Edge Crossed Width

Falling Edge Crossed Width

Mouse CLK Active Time

Mouse CLK Inactive Time

Time that Mouse Sample DATA from

CLK rising Edge

System CLK Active Time

System CLK Inactive Time

Time from DATA Transition to Falling

Edge of CLK

Time from rising Edge of CLK to DATA trasition

Time to mouse Inhibit after the 11th CLK to ensure mouse

does not start another Transmission

SYMBOL

Fosc

Tkd

Tr

Tf

Tmca

Tmci

Tmdc

Tsca

Tsci

Tsdc

Tscd

Tpi

MIN

37-3%

13.5

13.5

0

CMOS IC

TYP

37

12

40.5

40.5

13.5

40.5

40.5

13.5

27.0

MAX

37+3%

UNIT

KHz

ms

µs

µs

µs

µs

µs

µs

µs

µs

µs

50

µs

Timing Diagram

(A) Photo-couples pulse width

X1(Y1)

X2(Y2)

Tr

Tf

UTC UNISONIC TECHNOLOGIES CO., LTD. 5

QW-R502-004,A

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