Ac Characteristics - Hitachi H8/3035 Series Hardware Manual

17.2.2 AC Characteristics

Bus timing parameters are listed in table 17-4. Control signal timing parameters are listed in
table 17-5. Timing parameters of the on-chip supporting modules are listed in table 17-6.
Table 17-4 Bus Timing – Preliminary –
Condition A: VCC = 2.7 V to 5.5 V, AVCC = 2.7 V to 5.5 V, VREF = 2.7 V to AVCC,
Condition B: VCC = 3.0 V to 5.5 V, AVCC = 3.0 V to 5.5 V, VREF = 3.0 V to AVCC,
Condition C: VCC = 5.0 V ± 10%, AVCC = 5.0 V ± 10%, VREF = 4.5 V to AVCC,
Item Symbol Min
Clock cycle time tcyc
Clock low pulse width tCL
Clock high pulse width tCH
Clock rise time tCR
Clock fall time tCF
Address delay time tAD
Address hold time tAH
Address strobe delay tASD
time
Write strobe delay tWSD
time
Strobe delay time tSD
Write data strobe tWSW1* 85
pulse width 1
Write data strobe tWSW2* 150
pulse width 2
Address setup time 1 tAS1
Address setup time 2 tAS2
Read data setup time tRDS
Read data hold time tRDH
VSS = AVSS = 0 V, ø = 2 MHz to 8 MHz, Ta = –20°C to +75°C (regular
specifications), Ta = –40°C to +85°C (wide-range specifications)
VSS = AVSS = 0 V, ø = 2 MHz to 10 MHz, Ta = –20°C to +75°C (regular
specifications), Ta = –40°C to +85°C (wide-range specifications)
VSS = AVSS = 0 V, ø = 2 MHz to 18 MHz, Ta = –20°C to +75°C (regular
specifications), Ta = –40°C to +85°C (wide-range specifications)
Condition A Condition B
8 MHz 10 MHz
Max Min
125 500 100
40 — 30
40 — 30
— 20 —
— 20 —
— 60 —
25 — 20
— 60 —
— 60 —
— 60 —
— 60
— 110
20 — 15
80 — 65
50 — 35
0 — 0
Condition C
18 MHz
Max Min Max
500 55.5 500
— 17 —
— 17 —
15 — 10
15 — 10
50 — 25
— 10 —
40 — 25
50 — 25
50 — 25
— 32 —
— 62 —
— 10 —
— 38 —
— 15 —
— 0 —
Test
Unit Conditions
ns Figure 17-4,
Figure 17-5
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