Datasheet

Section 25 Electrical Characteristics
(H8S/2633, H8S/2632, H8S/2631, H8S/2633F)
R01UH0166EJ0600 Rev. 6.00 Page 1057 of 1434
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
25.3.1 Clock Timing
Table 25.5 lists the clock timing
Table 25.5 Clock Timing
Condition A: V
CC
= PLLV
CC
= 3.0 V to 3.6 V, PV
CC
= 3.0 V to 5.5 V, AV
CC
= 3.6 V to 5.5 V
*
1
,
V
ref
= 3.6 V to AV
CC
*
2
, V
SS
= AV
SS
= PLLV
SS
= 0 V, 2 to 16 MHz,
T
a
= –20°C to +75°C (regular specifications), T
a
= –40°C to +85°C (wide-range
specifications)
Condition B: V
CC
= PLLV
CC
= 3.0 V to 3.6 V, PV
CC
= 4.5 V to 5.5 V, AV
CC
= 4.5 V to 5.5 V,
V
ref
= 4.5 V to AV
CC
, V
SS
= AV
SS
= PLLV
SS
= 0 V, 2 to 25 MHz,
T
a
= –20°C to +75°C (regular specifications), T
a
= –40°C to +85°C (wide-range
specifications)
Condition A Condition B
16MHz 25MHz
Item Symbol Min Max Min Max Unit Test Conditions
Clock cycle time t
cyc
62.5 500 40 500 ns Figure 25.2
Clock high pulse width t
CH
18 — 15 — ns
Clock low pulse width t
CL
18 — 15 — ns
Clock rise time t
Cr
— 12 — 5 ns
Clock fall time t
Cf
— 12 — 5 ns
Clock oscillator settling
time at reset (crystal)
t
OSC1
20 — 10 — ms Figure 25.3
Clock oscillator settling
time in software standby
(crystal)
t
OSC2
10 — 8 — ms Figure 24.3
External clock output
stabilization delay time
t
DEXT
2 — 2 — ms Figure 25.3
32 kHz clock oscillation
settling time
t
OSC3
— 2 — 2 s
Sub clock oscillator
frequency
f
SUB
32.768 32.768 kHz
Sub clock (φ
SUB
) cycle time t
SUB
30.5 30.5 μs
Notes: 1. AV
CC
= 3.3 V to 5.5 V if A/D and D/A not used (pins used as I/O ports).
2. Vref = 3.3 V to AV
CC
if A/D and D/A not used (pins used as I/O ports).