HD6433044 Datasheet, PDF (672/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

21.2.2 AC Characteristics
Bus timing parameters are listed in table 21-4. Refresh controller bus timing parameters are listed
in table 21-5. Control signal timing parameters are listed in table 21-6. Timing parameters of the
on-chip supporting modules are listed in table 21-7.
Table 21-4 Bus Timing (1)
Condition A: V_CC = 2.7 V to 5.5 V, AV_CC = 2.7 V to 5.5 V, V_REF = 2.7 V to AV_CC,
V_SS = AV_SS = 0 V, ø = 1 MHz to 8 MHz, T_a = –20°C to +75°C (regular
specifications), T_a = –40°C to +85°C (wide-range specifications)
Condition B: V_CC = 3.15 V to 5.5 V, AV_CC = 3.15 V to 5.5 V, V_REF = 3.15 V to AV_CC,
V_SS = AV_SS = 0 V, ø = 1 MHz to 13 MHz, T_a = –20°C to +75°C (regular
specifications), T_a = –40°C to +85°C (wide-range specifications)
Condition C: V_CC = 5.0 V ± 10%, AV_CC = 5.0 V ± 10%, V_REF = 4.5 V to AV_CC,
V_SS = AV_SS = 0 V, ø = 1 MHz to 18 MHz, T_a = –20°C to +75°C (regular
specifications), T_a = –40°C to +85°C (wide-range specifications)
Condition A Condition B
Condition C
Item
8 MHz
13 MHz
16 MHz
18 MHz
Test
Symbol Min Max Min Max Min Max Min Max Unit Conditions
Clock cycle time
t_CYC
Clock pulse low width t_CL
Clock pulse high width t_CH
Clock rise time
t_CR
Clock fall time
t_CF
Address delay time
t_AD
Address hold time
t_AH
Address strobe delay t_ASD
time
125 1000 76.9 1000 62.5 1000 55.5 1000 ns
40 — 20 — 20 — 17 —
40 — 20 — 20 — 17 —
— 20 — 15 — 10 — 10
— 20 — 15 — 10 — 10
— 60 — 50 — 30 — 25
25 — 20 — 10 — 10 —
— 60 — 50 — 30 — 25
Figure 21-7,
Figure 21-8
Write strobe delay time t_WSD — 60 — 50 — 30 — 25
Strobe delay time
t_SD
— 60 — 50 — 30 — 25
Write data strobe pulse t_WSW1* 85 — 40 — 35 — 32 —
width 1
Write data strobe pulse t_WSW2* 150 — 90 — 65 — 62 —
width 2
Address setup time 1 t_AS1
Address setup time 2 t_AS2
Read data setup time t_RDS
Read data hold time t_RDH
20 — 15 — 10 — 10 —
80 — 45 — 40 — 38 —
50 — 30 — 20 — 15 —
0 —0 —0 —0 —
664