User manual

CY7C67200
Document #: 38-08014 Rev. *G Page 67 of 78
USB Transceiver
USB 2.0-compatible in full- and low-speed modes.
This product was tested as compliant to the USB-IF specification under the test identification number (TID) of 100390449 and is
listed on the USB-IF’s integrators list.
AC Timing Characteristics
Reset Timing
V
A_SESS_VALID
A-Device Session Valid 0.8 2.0 V
V
B_SESS_VALID
B-Device Session Valid 0.8 4.0 V
V
A_SESS_END
B-Device Session End 0.2 0.8 V
E Efficiency When Loaded I
LOAD
= 8 mA, VCC = 3.3V 75 %
R
PD
Data Line Pull Down 14.25 24.8 Ω
R
A_BUS_IN
A-device V
BUS
Input Impedance
to GND
V
BUS
is not being driven 40 100 kΩ
R
B_SRP_UP
B-device V
BUS
SRP Pull Up Pull-up voltage = 3.0V 281 Ω
R
B_SRP_DWN
B-device V
BUS
SRP Pull Down 656 Ω
Table 41.DC Characteristics: Charge Pump (continued)
Parameter Description Conditions Min. Typ. Max. Unit
Note
9. Clock is 12 MHz nominal.
Parameter Description Min. Typ. Max. Unit
t
RESET
nRESET Pulse Width 16 clocks
[9]
t
IOACT
nRESET HIGH to nRD or nWRx Active 200 µs
nRESET
nRD or nWRL or nWRH
t
RESET
t
IOACT
Reset Timing
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