GL602USB View Datasheet(PDF) - Genesys Logic

Part Name

Description

MFG CO.

GL602USB

USB KEYBOARD MICROCONTROLLER

Genesys Logic 

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tR

tF

tRFM

VCRS

tDRATE

tUDJ1

tUDJ2

tDJR1

tDJR2

tEOPT

tDEOP

tEOPR1

tEOPR2

frequency

Transition time

Rise time

Fall time

Rise/Fall time matching

Output signal crossover

voltage

Low speed data rate

Source differential driver

jitter

To next transition

For paired transition

Receiver data jitter

tolerance

To next transition

For paired transition

Source EOP width

Differential to EOP

transition skew

Receiver EOP width

Must reject as EOP

Must accept

75

ns

300 ns

75

ns

300 ns

80

120 %

1.3

2.0

V

1.4775 1.5225 Mbs

676.8 666.0 ns

-25

25

ns

-10

10

ns

-75

75

ns

-45

45

ns

1.25 1.50 µs

-40

100 ns

330

ns

675

ns

CL = 50pF

CL = 350pF

CL = 50pF

CL = 350pF

tR / tF

1.5Mbs ± 1.5%

CL = 350pF measured at

crossover point

CL = 350pF measured at

crossover point

Measured at crossover point

Measured at crossover point

Measured at crossover point

Notes:

1. ISB measured with USB in suspend mode; using external square wave clock source (FOSC = 6MHz); transceiver pull-

up resistor of 1.5KΩ between V3.3 and D- and 15KΩ termination resistors on D+ and D- pins; no port pins sourcing

current. The ISB value is including power consumed by external resistors.

Revision 1.6

-32-

02/28/2000

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