Ac Characteristics; Example Of Circuit For Driving A Darlington Transistor Pair; Example Of Circuit For Driving An Led; Bus Timing - Hitachi H8/500 Series Hardware Manual

H8/532
Port
Figure 20-1 Example of Circuit for Driving a
Darlington Transistor Pair

20.2.2 AC Characteristics

The AC characteristics of the H8/532 chip are listed in three tables. Bus timing parameters are
given in table 20-4, control signal timing parameters in table 20-5, and timing parameters of the
on-chip supporting modules in table 20-6.
Table 20-4 Bus Timing
Conditions: V
CC
T = –20 to +75˚C (Regular Specifications)
a
T = –40 to +85˚C (Wide-Range Specifications)
a
Item
Clock cycle time
Clock pulse width Low
Clock pulse width High
Clock rise time
Clock fall time
Address delay time
Address hold time
Data strobe delay time 1
Data strobe delay time 2
Data strobe delay time 3
Write data strobe pulse width
Address setup time 1
Downloaded from Elcodis.com electronic components distributor
- - - - - - - - - - - - -
2 kΩ
- - - - - - - - - - - - -
Darlington pair
= 5.0V ±10%, AV = 5.0V ±10%, ø = 0.5 to 10MHz, V
CC
Symbol Min
t 166.7 2000 125
cyc
t 65
CL
t 65
CH
t –
Cr
t –
Cf
t –
AD
t 30
AH
t –
DSD1
t –
DSD2
t –
DSD3
t 200
DSWW
t 25
AS1
H8/532
Figure 20-2 Example of Circuit for Driving
6MHz 8MHz
Max Min Max Min Max Unit Conditions
2000 100 2000 ns
– 45 –
– 45 –
15 – 15
15 – 15
70 – 65
– 25 –
70 – 60
70 – 60
70 – 60
– 150 –
– 20 –
322
Vcc
600 Ω
Port 4
LED
an LED
= 0V
SS
10MHz Measurement
See figure 20-4
35 – ns
35 – ns
– 15 ns
– 15 ns
– 65 ns
20 – ns
– 40 ns
– 50 ns
– 50 ns
120 – ns
15 – ns