Datasheet
RL78/G13  2. ELECTRICAL SPECIFICATIONS (A, D: T
A = -40 to +85°C) 
Page 103 of 194R01DS0131EJ0310 Rev.3.10 
Nov 15, 2013 
(9) Communication at different potential (1.8 V, 2.5 V, 3 V) (CSI mode) (slave mode, SCKp... external clock 
input) 
 (TA = −40 to +85°C, 1.8 V ≤ EVDD0 = EVDD1 ≤ VDD ≤ 5.5 V, VSS = EVSS0 = EVSS1 = 0 V) (2/2) 
Parameter Symbol Conditions  HS (high-
speed main) 
Mode 
LS (low-speed 
main) Mode 
LV (low-voltage 
main) Mode
Unit
MIN. MAX. MIN. MAX. MIN. MAX.
SCKp high-/low-level 
width 
tKH2, 
t
KL2 
4.0 V ≤ EV
DD0 ≤ 5.5 V, 
2.7 V ≤ V
b ≤ 4.0 V 
t
KCY2/2 
− 12
t
KCY2/2 
− 50
t
KCY2/2 
− 50 
 ns
2.7 V ≤ EVDD0 < 4.0 V, 
2.3 V ≤ V
b ≤ 2.7 V 
t
KCY2/2 
− 18
t
KCY2/2 
− 50
t
KCY2/2 
− 50 
 ns
1.8 V ≤ EVDD0 < 3.3 V, 
1.6 V ≤ V
b ≤ 2.0 V
 Note 2
t
KCY2/2 
− 50
t
KCY2/2 
− 50
t
KCY2/2 
− 50 
 ns
SIp setup time 
(to SCKp↑) 
Note 3
t
SIK2 4.0 V ≤ EVDD0 ≤ 5.5 V, 
2.7 V ≤ V
b ≤ 4.0 V 
1/f
MCK 
+ 20
 1/fMCK 
+ 30
 1/fMCK 
+ 30 
 ns
2.7 V ≤ EVDD0 < 4.0 V, 
2.3 V ≤ V
b ≤ 2.7 V 
1/f
MCK 
+ 20
 1/fMCK 
+ 30
 1/fMCK 
+ 30 
 ns
1.8 V ≤ EVDD0 < 3.3 V, 
1.6 V ≤ V
b ≤ 2.0 V
 Note 2
1/f
MCK 
+ 30
 1/fMCK 
+ 30
 1/fMCK 
+ 30 
 ns
SIp hold time 
(from SCKp↑) 
Note 4
t
KSI2  1/fMCK + 
31 
 1/fMCK 
+ 31
 1/fMCK 
+ 31 
 ns
Delay time from 
SCKp↓ to SOp output 
Note 5
t
KSO2 4.0 V ≤ EVDD0 ≤ 5.5 V, 2.7 V ≤ Vb ≤ 4.0 
V, 
C
b = 30 pF, Rb = 1.4 kΩ 
 2/f
MCK 
+ 120
 2/fMCK 
+ 573 
 2/fMCK 
+ 573
ns
2.7 V ≤ EVDD0 < 4.0 V, 2.3 V ≤ Vb ≤ 2.7 
V, 
C
b = 30 pF, Rb = 2.7 kΩ 
 2/f
MCK 
+ 214
 2/fMCK 
+ 573 
 2/fMCK 
+ 573
ns
1.8 V ≤ EVDD0 < 3.3 V, 
1.6 V ≤ V
b ≤ 2.0 V
 Note 2
, 
C
b = 30 pF, Rb = 5.5 kΩ 
 2/f
MCK 
+ 573
 2/fMCK 
+ 573 
 2/fMCK 
+ 573
ns
Notes  1. Transfer rate in the SNOOZE mode : MAX. 1 Mbps 
  2. Use it with EV
DD0 ≥ Vb. 
  3. When DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1. The SIp setup time becomes “to 
SCKp↓” when DAPmn = 0 and CKPmn = 1, or DAPmn = 1 and CKPmn = 0. 
 4. When DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1.  The SIp hold time becomes “from 
SCKp↓” when DAPmn = 0 and CKPmn = 1, or DAPmn = 1 and CKPmn = 0. 
 5. When DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1. The delay time to SOp output 
becomes “from SCKp↑” when DAPmn = 0 and CKPmn = 1, or DAPmn = 1 and CKPmn = 0. 
Caution  Select the TTL input buffer for the SIp pin and the N-ch open drain output (V
DD tolerance (When 
20- to 52-pin products)/EVDD tolerance (When 64- to 128-pin products)) mode for the SOp pin and 
SCKp pin by using port input mode register g (PIMg) and port output mode register g (POMg). For 
V
IH and VIL, see the DC characteristics with TTL input buffer selected. 
(Remarks are listed on the next page.) 










