Electrical Characteristics
Flash MCU(HMS39C7092)
14.4
AC Characteristics
Timing measurement conditions is following that
Unless otherwise specified:
VDD = 3.3V
Junction Temperature = 25 degrees C
Process = Typical
Low voltage input signal input signal rising and falling edges switching time
= 0.3ns
Clock timing parameters are listed in table 14.6, control signal timing parameters in
table 14.7, and bus timing parameters in table 14.8.
Table 14.6 Clock Timing
Item
Symbol
Clock cycle time
Clock pulse low width
Clock pulse high width
Clock rise time
Clock fall time
Clock oscillator
Settling time at reset
tCYC
tCL
tCH
tCr
tCf
tOSC1
Min.
20
10
10
-
-
20
Max.
1000
-
-
10
10
-
Units
ns
ns
ns
ns
ns
ms
- Preliminary-
Test
Conditions
Figure 14.3
Figure 14.1
Table 14.7 Control Signal Timing
Item
Symbol Min.
XnRES setup time tRESS
200
XnRES pulse width tRESW
5
Mode programming tMDS
200
setup time
Max.
-
-
-
Units
ns
tCYC
ns
- Preliminary-
Test
Conditions
Figure 14.2
194
Preliminary