13.1.4 AC Electrical Characteristics
Specified Conditions: Capacitive load on all pins = 30 pF
13.1.5 General Memory Timing
Table 13-2. General Memory Timing
Symbol
tCL
Parameter
1/CLK24 Frequency
Min
Typ
Max Unit
Notes
41.66
ns
tAV
Delay from Clock to Valid Address
Delay from CLK24 to CS#
0
2
2
2
2
2
10
15
15
15
15
15
ns
ns
ns
ns
ns
ns
tCD
tOED Delay from CLK24 to OE#
tWD
tRD
tPD
Delay from CLK24 to WR#
Delay from CLK24 to RD#
Delay from CLK24 to PSEN#
13.1.6 Program Memory Read
Table 13-3. Program Memory Read
Symbol
tAA1
Parameter
Formula
3tCL-tAV-TDSU1
tCL+1
Min
103
42
12
0
Max
Unit
ns
Notes
Address Access Time
Address Hold from CLK24
tAH1
ns
tDSU1 Data setup to CLK24
tDH1 Data Hold from CLK24
ns
ns
13.1.7 Data Memory Read
Table 13-4. Data Memory Read
Symbol
tAA2
Parameter
Formula
3tCL-tAV-TDSU1
tCL+1
Min
103
42
12
0
Max
Unit
ns
Notes
Address Access Time
Address Hold from CLK24
tAH2
ns
tDSU2 Data setup to CLK24
ns
tDH2
Data Hold from CLK24
ns
Page 13-2
Chapter 13. EZ-USB AC/DC Parameters
EZ-USB TRM v1.9
CYPRESS [ CYPRESS ]
