Ac Characteristics; Table 15.19 Control Signal Timing - Renesas H8/3847R Series Hardware Manual

15.6.3

AC Characteristics

Table 15.19 lists the control signal timing, and tables 15.20 and 15.21 list the serial interface
timing.

Table 15.19 Control Signal Timing

Item Symbol Pins
System clock f
OSC
oscillation
frequency
OSC clock (φ ) t
OSC OSC
cycle time
System clock (φ) t
cyc
cycle time
Subclock oscilla- f
W
tion frequency
Watch clock (φ ) t
W W
cycle time
Subclock (φ ) t
SUB subcyc
cycle time
Instruction cycle
time
Oscillation t
rc
stabilization time
Values
Applicable
Min Typ
OSC , OSC 2 —
1 2
2 —
OSC , OSC 100 —
1 2
250 —
2 —
— —
X , X — 32.768
1 2
or
38.4
X , X — 30.5
1 2
or
26.0
2 —
2 —
OSC , OSC — 20
1 2
— 80
— 0.8
— 1.2
Section 15 Electrical Characteristics
Max Unit Test Condition
10 MHz V = 2.7 V to 3.6 V
CC
4 V = 1.8 V to 3.6 V
CC
500 ns V = 2.7 V to 3.6 V
CC
(1000)
500 V = 1.8 V to 3.6 V
CC
(1000)
128 t
OSC
128 µs
— kHz
— µs
8 t
W
— t
cyc
t
subcyc
45 µs Ceramic Oscillator
Parameters
V = 2.2 V to 3.6 V
CC
— Ceramic Oscillator
Parameters
Except the above
2 ms Crystal Oscillator
Parameters
V = 2.7 V to 3.6 V
CC
3 Crystal Oscillator
Parameters
V = 2.2 V to 3.6 V
CC
Rev. 6.00 Aug 04, 2006 page 505 of 680
Reference
Figure
Figure 15.1
*
2
Figure 15.1
*
1
Figure 15.10
REJ09B0145-0600