Specifications

CY8C24094, CY8C24794
CY8C24894, CY8C24994
Document Number: 38-12018 Rev. AH Page 24 of 64
10.3.3 DC Full Speed USB Specifications
The following table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75 V to 5.25 V
and –10 C  T
A
 85 °C, or 3.0 V to 3.6 V and –10 °C  T
A
 85 °C, respectively. Typical parameters are measured at 5 V and 3.3 V
at 25 °C and are for design guidance only.
Table 13. DC Full Speed (12 Mbps) USB Specifications
Symbol Description Min Typ Max Units Notes
USB Interface
V
DI
Differential input sensitivity 0.2 – – V | (D+) – (D–) |
V
CM
Differential input common mode range 0.8 – 2.5 V
V
SE
Single ended receiver threshold 0.8 – 2.0 V
C
IN
Transceiver capacitance – – 20 pF
I
I/O
High Z state data line leakage –10 – 10 µA 0 V < V
IN
< 3.3 V.
R
EXT
External USB series resistor 23 – 25  In series with each USB pin.
V
UOH
Static output high, driven 2.8 – 3.6 V 15 k ± 5% to ground. Internal pull-up
enabled.
V
UOHI
Static output high, idle 2.7 – 3.6 V 15 k ± 5% to ground. Internal pull-up
enabled.
V
UOL
Static output low – – 0.3 V 15 k ± 5% to ground. Internal pull-up
enabled.
Z
O
USB driver output impedance 28 – 44  Including R
EXT
resistor.
V
CRS
D+/D– crossover voltage 1.3 – 2.0 V