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3069RF-ZTAT Datasheet, PDF (754/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER | |||
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21.2.3 AC Characteristics
Clock timing parameters are listed in table 21.14, control signal timing parameters in table 21.15,
and bus timing parameters in table 21.16. Timing parameters of the on-chip supporting modules
are listed in table 21.17.
Table 21.14 Clock Timing
Condition: Ta = â40°C to +85°C (Wide-range specifications),
VCC = AVCC = 5.0 V ± 10%, VREF = 4.5 V to AVCC, VSS = AVSS = 0 V, fmax = 25 MHz
Item
Symbol
Min
Clock cycle time
tcyc
40
Clock pulse low width tCL
10
Clock pulse high width tCH
10
Clock rise time
tCr
â
Clock fall time
tCf
â
Clock oscillator settling tOSC1
20
time at reset
Clock oscillator settling tOSC2
7
time in software standby
Test
Max
Unit
Conditions
100
ns
Figure 21.13
â
ns
â
ns
10
ns
10
ns
â
ms
Figure 21.10
â
ms
Figure 20.1
Table 21.15 Control Signal Timing
Conditions: Ta = â40°C to +85°C (Wide-range specifications),
VCC = AVCC = 5.0 V ± 10%, VREF = 4.5 V to AVCC, VSS = AVSS = 0 V, fmax = 25 MHz
Item
Symbol Min
RES setup time
tRESS
150
RES pulse width
tRESW
20
Mode programming setup t
200
MDS
time
NMI, IRQ setup time
tNMIS
150
NMI, IRQ hold time
tNMIH
10
NMI, IRQ pulse width
t
200
NMIW
Max
â
â
â
â
â
â
Unit
ns
tcyc
ns
ns
ns
ns
Test
Conditions
Figure 21.11
Figure 21.12
Rev. 5.0, 09/04, page 732 of 978
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