HD6475328CG Datasheet, PDF (331/459 Pages) Hitachi Semiconductor – Manual Gives a Hardware Description

H8/532
Port
-------------
2 kΩ
-------------
Darlington pair
H8/532
Vcc
Port 4
600 Ω
LED
Figure 20-1 Example of Circuit for Driving a Figure 20-2 Example of Circuit for Driving
Darlington Transistor Pair
an LED
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: VCC = 5.0V ±10%, AVCC = 5.0V ±10%, ø = 0.5 to 10MHz, VSS = 0V
Ta = –20 to +75˚C (Regular Specifications)
Ta = –40 to +85˚C (Wide-Range Specifications)
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
6MHz
Symbol Min Max
tcyc
166.7 2000
tCL
65 –
tCH
65 –
tCr
– 15
tCf
– 15
tAD
– 70
tAH
30 –
tDSD1 –
70
tDSD2 –
70
tDSD3 –
70
tDSWW 200 –
tAS1
25 –
8MHz
10MHz
Measurement
Min Max Min Max Unit Conditions
125 2000 100 2000 ns See figure 20-4
45 – 35 – ns
45 – 35 – ns
– 15 – 15 ns
– 15 – 15 ns
– 65 – 65 ns
25 – 20 – ns
– 60 – 40 ns
– 60 – 50 ns
– 60 – 50 ns
150 – 120 – ns
20 – 15 – ns
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