Datasheet

Section 26 Electrical Characteristics
Rev. 4.00 Sep 27, 2006 page 854 of 1130
REJ09B0327-0400
(4) Timing of On-Chip Supporting Modules
Tables 26.37 to 26.39 show the on-chip supporting module timing. The only on-chip supporting
modules that can operate in subclock operation (φ = 32.768 kHz) are the I/O ports, external
interrupts (NMI and IRQ0, 1, 2, 6, and 7), the watchdog timer, and the 8-bit timer (channels 0 and
1).
Table 26.37 Timing of On-Chip Supporting Modules (1)
Condition A: V
CC
= 5.0 V ±10%, V
CC
B = 5.0 V ±10%, V
SS
= 0 V, φ = 32.768 kHz
*
, 2 MHz to
maximum operating frequency, T
a
= –20 to +75°C
Condition B: V
CC
= 3.0 V to 5.5 V, V
CC
B = 3.0 V to 5.5 V, V
SS
= 0 V, φ = 32.768 kHz
*
, 2 MHz to
maximum operating frequency, T
a
= –20 to +75°C
Condition A Condition B
20 MHz 10 MHz
Item Symbol Min Max Min Max Unit
Test
Conditions
I/O
ports
Output data delay
time
t
PWD
— 50 — 100
ns Figure
26.15
Input data setup
time
t
PRS
30 — 50 —
Input data hold
time
t
PRH
30 — 50 —
FRT Timer output delay
time
t
FTOD
— 50 — 100 ns Figure
26.16
Timer input setup
time
t
FTIS
30 — 50 —
Timer clock input
setup time
t
FTCS
30
— 50 — Figure
26.17
Single
edge
t
FTCWH
1.5
—1.5—t
cyc
Timer
clock
pulse
width
Both
edges
t
FTCWL
2.5 — 2.5 —