SH7032 Datasheet, PDF (557/687 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 20 Electrical Characteristics
(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
t_CSD1
CS delay time 2
t_CSD2
CS delay time 3
t_CSD3
CS delay time 4
t_CSD4
Access time 1*⁶ 35% duty*² t_RDAC1
from read strobe _{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
—
25
—
25
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
ns 20.52, 20.53, 20.64
ns
ns 20.63
ns
ns 20.52
ns
ns 20.53, 20.54
ns
ns 20.63
ns
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
Rev. 7.00 Jan 31, 2006 page 531 of 658
REJ09B0272-0700