Ac characteristics – Cypress enCoRe CY7C63310 User Manual
Page 70
CY7C63310, CY7C638xx
Document 38-08035 Rev. *K
Page 70 of 83
USB Driver
T
R1
Transition Rise Time
C
LOAD
= 200 pF
75
ns
T
R2
Transition Rise Time
C
LOAD
= 600 pF
300
ns
T
F1
Transition Fall Time
C
LOAD
= 200 pF
75
ns
T
F2
Transition Fall Time
C
LOAD
= 600 pF
300
ns
T
R
Rise/Fall Time Matching
80
125
%
V
CRS
Output Signal Crossover Voltage
1.3
2.0
V
USB Data Timing
T
DRATE
Low Speed Data Rate
Average Bit Rate (1.5 Mbps ± 1.5%)
1.4775
1.5225
Mbps
T
DJR1
Receiver Data Jitter Tolerance
To next transition
–75
75
ns
T
DJR2
Receiver Data Jitter Tolerance
To pair transition
–45
45
ns
T
DEOP
Differential to EOP Transition Skew
–40
100
ns
T
EOPR1
EOP Width at Receiver
Rejects as EOP
330
ns
T
EOPR2
EOP Width at Receiver
Accept as EOP
675
ns
T
EOPT
Source EOP Width
1.25
1.5
μs
T
UDJ1
Differential Driver Jitter
To next transition
–95
95
ns
T
UDJ2
Differential Driver Jitter
To pair transition
–95
95
ns
T
LST
Width of SE0 during Diff. Transition
210
ns
Non-USB Mode Driver Characteristics
T
FPS2
SDATA/SCK Transition Fall Time
50
300
ns
GPIO Timing
T
R_GPIO
Output Rise Time
[8]
Measured between 10 and 90%
Vdd/Vreg with 50 pF load
50
ns
T
F_GPIO
Output Fall Time
Measured between 10 and 90%
Vdd/Vreg with 50 pF load
15
ns
SPI Timing
T
SMCK
SPI Master Clock Rate
F
CPUCLK
/6
2
MHz
T
SSCK
SPI Slave Clock Rate
2.2
MHz
T
SCKH
SPI Clock High Time
High for CPOL = 0, Low for CPOL = 1
125
ns
T
SCKL
SPI Clock Low Time
Low for CPOL = 0, High for CPOL = 1
125
ns
T
MDO
Master Data Output Time
[10]
SCK to data valid
–25
50
ns
T
MDO1
Master Data Output Time,
First bit with CPHA = 0
Time before leading SCK edge
100
ns
T
MSU
Master Input Data Setup time
50
ns
T
MHD
Master Input Data Hold time
50
ns
T
SSU
Slave Input Data Setup Time
50
ns
T
SHD
Slave Input Data Hold Time
50
ns
T
SDO
Slave Data Output Time
SCK to data valid
100
ns
T
SDO1
Slave Data Output Time,
First bit with CPHA = 0
Time after SS LOW to data valid
100
ns
T
SSS
Slave Select Setup Time
Before first SCK edge
150
ns
T
SSH
Slave Select Hold Time
After last SCK edge
150
ns
28. AC Characteristics
(continued)
Parameter
Description
Conditions
Min
Typical
Max
Unit
Note
10. In Master mode, first bit is available 0.5 SPICLK cycle before Master clock edge available on the SCLK pin.