HD6417034 Datasheet, PDF (563/691 Pages) Renesas Technology Corp – SuperH RISC ENGINE SH7032 AND SH7034

(3) Bus Timing
Tables 20.20 show the bus timing.
Table 20.20 Bus Timing (1)
Conditions: V_CC = 3.3 V ±0.3V, AV_CC = 3.3 V ±0.3V, AV_CC = V_CC ±0.3V, AV_ref = 3.0 V to
AV_CC, V_SS = AV_SS = 0 V, φ = 20 MHz*¹, Ta = –20 to +75°C*²
Notes: *1 ROMless products
*2 Regular-specification products; for wide-temperature-range products, Ta = –40 to
+85°C
Item
Symbol Min
Max Unit Figures
Address delay time
t_AD
—
20*¹
ns 20.52, 20.53, 20.55–
20.58, 20.63, 20.64
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
—
25
—
25
—
25
—
25
t_cyc × 0.65 – 20—
t_cyc × 0.5 – 20 —
t_cyc × (n+1.65) —
– 20*³
ns 20.52, 20.53, 20.64
ns
ns 20.63
ns
ns 20.52
ns
ns 20.53, 20.54
50% duty
t_cyc × (n+1.5) —
ns
– 20*³
Access time 3*⁶ 35% duty*² t_RDAC3
from read strobe
t_cyc × (n+0.65) —
– 20*³
ns 20.63
50% duty
t_cyc × (n+0.5) —
ns
– 20*³
Read strobe delay time
t_RSD
—
20
ns 20.52, 20.53, 20.55–
20.59, 20.63
Read data setup time
t_RDS
15
—
ns 20.52, 20.53, 20.55–
20.58, 20.63
Read data hold time
t_RDH
0
Write strobe delay time 1
t_WSD1
—
—
ns
20
ns 20.53, 20.57, 20.58,
20.63, 20.64
Write strobe delay time 2
t_WSD2
—
20
ns 20.53, 20.57, 20.58,
20.63
Write strobe delay time 3
t_WSD3
—
Write strobe delay time 4
t_WSD4
—
20
ns 20.55, 20.56
20
ns 20.55, 20.56, 20.64
527