Datasheet

Section 27 Electrical Characteristics
Rev. 6.00 Mar. 18, 2010 Page 916 of 982
REJ09B0054-0600
Table 27.42 Clock Timing
Condition A (F-ZTAT version and masked ROM version):
V
CC
= 2.7 V to 3.6 V, AV
CC
= 2.7 V to 3.6 V,
V
ref
= 2.7 V to AV
CC
, V
SS
=AV
SS
= 0 V,
φ = 32.768 kHz, 2 to 13.5 MHz,
T
a
= –20°C to +75°C (regular specifications),
T
a
= –40°C to +85°C (wide-range specifications)
Condition B (F-ZTAT version): V
CC
= 2.2 V to 3.6 V, AV
CC
= 2.2 V to 3.6 V,
V
ref
= 2.2 V to AV
CC
, V
SS
=AV
SS
= 0 V,
φ = 32.768 kHz, 2 to 6.25 MHz,
T
a
= –20°C to +75°C (regular specifications)
Condition C (Masked ROM version): V
CC
= 2.2 V to 3.6 V, AV
CC
= 2.2 V to 3.6 V,
V
ref
= 2.2 V to AV
CC
, V
SS
= AV
SS
= 0 V,
φ = 32.768 kHz, 2 to 6.25 MHz,
T
a
= –20°C to +75°C (regular specifications),
T
a
= –40°C to +85°C (wide-range specifications)
Condition A Conditions B, C
Item Symbol Min Typ Max Min Typ Max Unit
Test
Conditions
Clock cycle time t
cyc
74 ⎯ 500 160 ⎯ 500 ns
Clock high pulse width t
CH
25 ⎯ ⎯ 50 ⎯ ⎯ ns
Clock low pulse width t
CL
25 ⎯ ⎯ 50 ⎯ ⎯ ns
Clock rise time t
Cr
⎯ ⎯ 10 ⎯ ⎯ 25 ns
Clock fall time t
Cf
⎯ ⎯ 10 ⎯ ⎯ 25 ns
Figure 27.10
Oscillation stabilization
time at reset (crystal)
t
OSC1
20 ⎯ ⎯ 40 ⎯ ⎯ ms Figure 27.11
Oscillation stabilization
time in software standby
(crystal)
t
OSC2
8 ⎯ ⎯ 16 ⎯ ⎯ ms
External clock output
stabilization delay time
t
DEXT
500 ⎯ ⎯ 1000 ⎯ ⎯ µs Figure 27.11
Subclock oscillation
stabilization time
t
OSC3
⎯ ⎯ 2 ⎯ ⎯ 4 s
Subclock oscillator
frequency
f
SUB
⎯ 32.768 ⎯ ⎯ 32.768 ⎯ kHz
Subclock (φ
SUB
) cycle
time
t
SUB
⎯ 30.5 ⎯ ⎯ 30.5 ⎯ µs