Datasheet
Section 21 Electrical Characteristics 
    Rev.5.00 Nov. 02, 2005 Page 327 of 418 
   REJ09B0028-0500 
Table 21.5  Serial Communication Interface (SCI) Timing 
V
CC
 = 3.0 to 5.5 V, V
SS
 = 0.0 V, T
a
 = –20 to +75°C, unless otherwise indicated. 
Applicable 
 Values  
Reference
Item  Symbol Pins  Test Condition  Min Typ Max Unit Figure 
Input 
clock 
Asynchro-
nous 
t
Scyc
  SCK3    4  — — t
cyc
 Figure 21.5 
cycle
 Clocked 
synchro-
nous 
      6  — —   
Input clock pulse 
width 
t
SCKW
 SCK3    0.4 — 0.6 t
Scyc
Transmit data delay  t
TXD
 TXD  V
CC
 = 4.0 V to 5.5 V  —  —  1  t
cyc
 Figure 21.6 
time (clocked 
synchronous)
    — — 1   
Receive data setup  t
RXS
 RXD  V
CC
 = 4.0 V to 5.5 V  50.0  —  —  ns   
time (clocked 
synchronous)
      100.0 — —   
Receive data hold  t
RXH
 RXD  V
CC
 = 4.0 V to 5.5 V  50.0  —  —  ns   
time (clocked 
synchronous)
      100.0 — —   










