Datasheet
Section 25 Electrical Characteristics 
Page 1244 of 1384    R01UH0310EJ0500 Rev. 5.00 
 Sep 25, 2012 
H8S/2426, H8S/2426R, H8S/2424 Group
Item  Symbol Min. Max. Unit Test Conditions 
Master 4 256 t
cyc
 SSU* Clock cycle 
Slave 
t
SUcyc
4 256  
Figures 25.48 to 
25.51 
Master 48 ⎯   Clock high pulse 
width 
Slave 
t
HI
48  ⎯ 
ns 
Master 48 ⎯   Clock low pulse 
width 
Slave 
t
LO
48  ⎯ 
ns 
  Clock rising time    t
RISE
  ⎯ 12 ns  
  Clock falling time    t
FALL
  ⎯ 12 ns  
Master 25 ⎯   Data input setup 
time 
Slave 
t
SU
30  ⎯ 
ns 
Master 10 ⎯   Data input hold 
time 
Slave 
t
H
10  ⎯ 
ns 
Master 2.5 ⎯   SCS setup time 
Slave 
t
LEAD
2.5  ⎯ 
t
cyc
Master 2.5 ⎯   SCS hold time 
Slave 
t
LAG
2.5  ⎯ 
t
cyc
Master  ⎯ 40     Data output delay 
time 
Slave 
t
OD
⎯ 40 
ns 
Master  −5  ⎯   Data output hold 
time 
Slave 
t
OH
0  ⎯ 
ns 
Master 2.5 ⎯  Continuous 
transmit delay time 
Slave 
t
TD
2.5  ⎯ 
t
cyc
  Slave access time  t
SA
  ⎯ 1 t
cyc
  Slave out release time  t
REL
  ⎯ 1 t
cyc
Figures 25.50 
and 25.51 
Note  *  SSU: Synchronous serial communication unit 










