Ac Characteristics; Table 22.5 Clock Timing - Hitachi H8/3062 Hardware Manual

22.1.3

AC Characteristics

Clock timing parameters are listed in table 22.5, control signal timing parameters in table 22.6,
and bus timing parameters in table 22.7. Timing parameters of the on-chip supporting modules are
listed in table 22.8.

Table 22.5 Clock Timing

Condition: T = –20°C to +75°C (regular specifications), T
a
specifications)
Condition A: V = 2.7 to 5.5 V, AV
CC
Condition B: V = 3.0 to 5.5 V, AV
CC
Condition C: V = 5.0 V ± 10%, AV
CC
Item Symbol
Clock cycle time t
Clock pulse low t
width
Clock pulse high t
width
Clock rise time t
Clock fall time t
Clock oscillator t
settling time at
reset
Clock oscillator t
settling time in
software standby
664
= 2.7 to 5.5 V, V
CC
= 3.0 to 5.5 V, V
CC
= 5.0 V ± 10%, V
CC
A
Min Max
100 1000
cyc
30 —
CL
30 —
CH
— 20
Cr
— 20
Cf
20 —
OSC1
7 —
OSC2
= –40°C to +85°C (wide-range
a
= 2.7 to AV
REF
= 3.0 to AV
REF
= 4.5 to AV
REF
Condition
B
Min Max Min
76.9 1000 50
18 — 15
18 — 15
— 15 —
— 15 —
20 — 20
7 — 7
, V = AV = 0 V
CC SS SS
, V = AV = 0 V
CC SS SS
, V = AV = 0 V
CC SS SS
C
Test
Max Unit Conditions
1000 ns Figure 22.19
to
— ns
figure 22.31
— ns
10 ns
10 ns
— ms Figure 22.19
— ms