38K2 datasheet(274/358 Pages) RENESAS

274 / 358 page

3.1 Electrical characteristics (L.Ver)

Rev.2.00

Oct 15, 2006

page 13 of 99

38K2 Group

REJ09B0338-0200

APPENDIX

Table 3.1.15 Switching characteristics (USB ports) (VCC = 3.00 to 5.25 V, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)

Min.

Typ.

Max.

Symbol

Parameter

Limits

Unit

tfr(D+/D-)

tff(D+/D-)

tlr(D+/D-)

USB full-speed output rising time

CL = 50 pF

USB full-speed output rising time

CL = 50 pF

USB low-speed output rising time

CL = 200 to 600 pF

Ta = 0 to 85 °C

CL = 250 to 600 pF

Ta = –20 to 85 °C

CL = 200 to 600 pF

Ta = –20 to 85 °C

USB low-speed output falling time

CL = 200 to 600 pF

Ta = 0 to 85 °C

CL = 250 to 600 pF

Ta = –20 to 85 °C

CL = 200 to 600 pF

Ta = –20 to 85 °C

USB full-speed ports rising/falling ratio

tfr(D+/D-)/tff(D+/D-)

USB low-speed ports rising/falling ratio

tlr(D+/D-)/tff(D+/D-)

USB output signal cross-over voltage

1.3

tlf(D+/D-)

tfrfm(D+/D-)

tlrfm(D+/D-)

Vcrs(D+/D-)

300

111.11

125

2.0

Fig. 3.1.2 USB output switching characteristics measurement cir-

cuit (1) for D0-, D1+/D2+ (low-speed), D1-/D2- (full-speed)

Fig. 3.1.3 USB output switching characteristics measurement cir-

cuit (2) for D0+, D1+/D2+ (full-speed), D1-/D2- (low-speed)

RL = 27

Ω

Measured output pin

RL = 15 k

Ω

USB port output

TrON

Measured output pin

RL = 27

Ω

RL = 1.5 k

Ω

RL = 15 k

Ω

USB port output

38K2 Datasheet(PDF) 274 Page - Renesas Technology Corp

38K2 Datasheet(HTML) 274 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL