h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 555

• Manufacturer Part Number: h8s-2111b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

22.3.1
Table 22.5 shows the clock timing. The clock timing specified here covers clock (φ) output and
clock pulse generator (crystal) and external clock input (EXTAL pin) oscillation settling times.
For details on external clock input (EXTAL pin and EXCL pin) timing, see section19, Clock Pulse
Generator.
Table 22.5 Clock Timing
Condition:
Item
Clock cycle time
Clock high pulse width
Clock low pulse width
Clock rise time
Clock fall time
Oscillation settling time at reset (crystal)
Oscillation settling time in software
standby (crystal)
External clock output stabilization delay
time
Clock Timing
V
operating frequency, T
CC
= 3.0 V to 3.6 V, V
a
CC
= –20 to +75°C
B = 3.0 V to 5.5 V, V
Symbol
t
t
t
t
t
t
t
t
cyc
CH
CL
Cr
Cf
OSC1
OSC2
DEXT
Min.
100
30
30
—
—
20
8
500
SS
= 0 V, φ = 4 MHz to maximum
Condition
10 MHz
Rev. 1.00, 05/04, page 521 of 544
Max.
250
—
—
20
20
—
—
—
Unit
ns
ns
ns
ns
ns
ms
ms
µs
Reference
Figure 22.5
Figure 22.6
Figure 22.7