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TMP92CZ26A
92CZ26A-645
4.3 AC Characteristics
The Following all AC regulation is the measurement result in following condition, if unless otherwise noted.
AC measuring condition
•
Clock of top column in above table shows system clock frequency, and “T” shows system
clock period [ns].
•
Output level: High = 0.7 3AV
CC
, Low = 0.3 3AV
CC
•
Input level: High = 0.9 3AV
CC
, Low = 0.1 3AV
CC
Note: In table, “Variable” shows the regulation at DVCC3A=3.0V~3.6V, DVCC1A=DVCC1B=DVCC1C=1.4~1.6V.
4.3.1 Basic Bus Cycle
Read cycle
Variable
No. Parameter Symbol
Min Max
80 MHz 60 MHz Unit
1 OSC period (X1/X2)
t
OSC
100 166.6
− −
2 System clock period ( = T)
t
CYC
12.5 266.6 12.5 16.6
3 SDCLK low width
t
CL
0.5T − 3 3.25 5.3
4 SDCLK high width
t
CH
0.5T − 3 3.25 5.3
5-1
A0 ~ A23 valid → D0 ~ D15 input at 0
waits
t
AD
2.0T − 18.0 7 15.3
t
AD6
6.0T − 18.0
−
82
5-2
A0 ~ A23 valid
→ D0 ~ D15 input at 4 waits/6 waits
t
AD7
8.0T - 18.0 82
−
t
RD
1.5T − 18.0
−
7
6-1
RD falling → D0 ~ D15 input at 0 waits
t
RD
1.5T − 18.0 0.75
−
t
RD6
5.5T − 18.0
−
73.6
6-2
RD falling
→ D0 ~ D15 input at 4 waits/6waits
t
RD7
5.5T − 18.0 50.75
−
7-1
RD low width at 0 waits
t
RR
1.5T − 10 8.75 14.9
7-2
RD low width at 4 waits
t
RR6
5.5T − 10 58.75 81.3
8
A0 ~ A23 valid →
RD
falling
t
AR
0.5T − 5 1.25 3.3
9
RD falling → SDCLK rising
t
RK
0.5T − 5 1.25 3.3
10 A0 ~ A23 valid → D0 ~ D15 hold
t
HA
0 0 0
11
RD
rising → D0 ~ D15 hold
t
HR
0 0 0
12
WAIT setup time
t
TK
3 3 5
13
WAIT hold time
t
KT
2 2 3
14 Data byte control access time
t
SBA
1.5T − 18.0 0.75 7
15
RD high width
t
RRH
0.5T − 5 1.25 3.3
ns
AC measuring condition
• Data_bus, Address_bus, various function control signal capacitance C
L
= 50 pF
Note: The operation guarantee temprature: 80MHz: Ta=0∼50°C, less than 60MHz: Ta=0∼70°C