CY7C68013A, CY7C68014A
CY7C68015A, CY7C68016A
10. AC Electrical Characteristics
10.1 USB Transceiver
USB 2.0 compliant in full speed and high speed modes.
10.2 Program Memory Read
Figure 12. Program Memory Read Timing Diagram
t
CL
CLKOUT[17]
t
t
AV
AV
A[15..0]
t
t
STBH
STBL
PSEN#
D[7..0]
[18]
ACC1
t
DH
t
data in
t
SOEL
OE#
CS#
t
SCSL
Table 15. Program Memory Read Parameters
Parameter Description
1/CLKOUT Frequency
Min
Typ
Max
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
48 MHz
24 MHz
12 MHz
tCL
20.83
41.66
83.2
tAV
Delay from Clock to Valid Address
Clock to PSEN Low
Clock to PSEN High
Clock to OE Low
0
0
0
10.7
8
tSTBL
tSTBH
tSOEL
tSCSL
tDSU
tDH
8
11.1
13
Clock to CS Low
Data Setup to Clock
Data Hold Time
9.6
0
Notes
17. CLKOUT is shown with positive polarity.
18. t
is computed from these parameters as follows:
ACC1
ACC1
ACC1
t
t
(24 MHz) = 3*t – t – t
= 106 ns
= 43 ns.
CL
AV
DSU
DSU
(48 MHz) = 3*t – t – t
CL
AV
Document #: 38-08032 Rev. *N
Page 38 of 62
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