Rainbow Electronics W90P710CDG User Manual
Page 517
W90P710CD/W90P710CDG
- 518 -
7.2.2 USB Transceiver DC Characteristics
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V
DI
Differential Input Sensitivity
DP − DM
0.2 V
V
CM
Differential Common Mode Range
Includes V
DI
range
0.8
2.5
V
V
SE
Single Ended Receiver Threshold
0.8
2.0
V
V
OL
Static Output Low Voltage
RL of 1.5 K
Ω to 3.6 V
0.3 V
V
OH
Static Output High Voltage
RL of 15 K
Ω to VSS
2.8 3.6 V
V
CRS
Output Signal Crossover Voltage
1.3
2.0
V
Z
DRV
Driver Output Resistance
Steady state drive
28
43
Ω
C
IN
Pin
Capacitance
20
pF
7.3 AC
Specifications
7.3.1 EBI/SDRAM Interface AC Characteristics
T
DH
T
DSU
1.5V
Output Valid
Iutput Valid
1.5V
1.5V
1.5V
MCLK
MCLK
D[31:0]
D[31:0]
SDRAM input to W90P710
W90P710 write to SDRAM
T
DO
SYMBOL PARAMETER MIN.
MAX.
UNIT
T
DSU
D [31:0] Setup Time
2
ns
T
DH
D [31:0] Hold Time
2
ns
T
DO
D [31:0], A [24:0], nSCS [1:0], SDQM [3:0], CKE, nSWE,
nSRAS, nSCAS
2 7 ns