HD6417750RF240V Datasheet, PDF (544/606 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 21 Electrical Characteristics
21.3.1 Clock Timing
Table 21.4 lists the clock timing
Table 21.4 Clock Timing
Conditions : V_CC = 4.5 V to 5.5 V, AV_CC = 4.5 V to 5.5 V, V_SS = AV_SS = 0 V, φ = 4 MHz to
20 MHz, T_a = –20°C to +75°C (regular specifications), T_a = –40°C to +85°C (wide-
range specifications)
Item
Clock cycle time
Clock high pulse width
Clock low pulse width
Clock rise time
Clock fall time
Oscillation stabilization time at
reset (crystal)
Oscillation stabilization time in
software standby (crystal)
External clock output
stabilization delay time
Symbol
t_cyc
t_CH
t_CL
t_Cr
t_Cf
t_OSC1
t_OSC2
t
DEXT
Min.
50
15
15
—
—
20
8
2
Max.
Unit
250
ns
—
ns
—
ns
10
ns
10
ns
—
ms
—
ms
—
ms
Test Conditions
Figure 21.2
Figure 21.3
Figure 20.3
Figure 21.3
t_cyc
t_CH
t_Cf
φ
t_CL
t_Cr
Figure 21.2 System Clock Timing
Rev. 7.00 Sep. 11, 2009 Page 508 of 566
REJ09B0211-0700