HD6417034 Datasheet, PDF (513/691 Pages) Renesas Technology Corp – SuperH RISC ENGINE SH7032 AND SH7034

(3) Bus Timing
Tables 20.6 to 20.8 show the bus timing.
Table 20.6 Bus Timing (1)
Conditions: V_CC = 5.0 V ±10%, AV_CC = 5.0 V ±10%, AV_CC = V_CC ±10%, AV_ref = 4.5 V to
AV_CC, V_SS = AV_SS = 0 V, φ = 20 MHz, Ta = –20 to +75°C*
Note: * Regular-specification products; for wide-temperature-range products, Ta = –40 to +85°C
Item
Address delay time
Symbol Min
t_AD
—
Max
20*¹
CS delay time 1
CS delay time 2
CS delay time 3
CS delay time 4
Access time 1*⁶
from read strobe
t_CSD1
t_CSD2
t_CSD3
t_CSD4
35% duty*² t_RDAC1
50% duty
Access time 2*⁶ 35% duty*² t_RDAC2
from read strobe
50% duty
Access time 3*⁶ 35% duty*² t_RDAC3
from read strobe
50% duty
Read strobe delay time
t_RSD
—
25
—
25
—
20
—
20
t_cyc × 0.65 – 20—
t_cyc × 0.5 – 20 —
t_cyc × (n+1.65) —
– 20*³
t_cyc × (n+1.5) —
– 20*³
t_cyc × (n+0.65) —
– 20*³
t_cyc × (n+0.5) —
– 20*³
—
20
Read data setup time
t_RDS
15
—
Read data hold time
t_RDH
0
—
Write strobe delay time 1
t_WSD1
—
20
Write strobe delay time 2
t_WSD2
—
20
Write strobe delay time 3
t_WSD3
—
20
Write strobe delay time 4
t_WSD4
—
20
Write data delay time 1
t_WDD1
—
35
Write data delay time 2
t_WDD2
—
20
Unit Figures
ns 20.8, 20.9, 20.11–20.14,
20.19, 20.20
ns 20.8, 20.9, 20.20
ns
ns 20.19
ns
ns 20.8,
ns
ns 20.9, 20.10
ns
ns 20.19
ns
ns 20.8, 20.9, 20.11–20.15,
20.19
ns 20.8, 20.9, 20.11–20.14,
ns ^20.19
ns 20.9, 20.13, 20.14,
20.19, 20.20
ns 20.9, 20.13, 20.14,
20.19
ns 20.11, 20.12
ns 20.11, 20.12, 20.20
ns 20.9, 20.13, 20.14, 19
ns 20.11, 20.12
477