Datasheet
RL78/L12 
  CHAPTER 31 ELECTRICAL SPECIFICATIONS (G: TA = -40 to +105°C) 
R01UH0330EJ0200 Rev.2.00      942 
Dec 13, 2013 
(5)  Communication at different potential (1.8 V, 2.5 V, 3 V) (CSI mode) (master mode, SCKp... internal clock 
output)  (2/2) 
 (T
A = −40 to +105°C, 2.4 V ≤ EVDD = VDD ≤ 5.5 V, VSS = EVSS = 0 V) 
Parameter  Symbol  Conditions  HS (high-speed main) Mode  Unit 
MIN. MAX. 
SIp setup time 
(to SCKp↑)
 Note 1
t
SIK1 
4.0 V ≤ EV
DD ≤ 5.5 V, 2.7 V ≤ Vb ≤ 4.0 V, 
C
b = 30 pF, Rb = 1.4 kΩ 
162 ns 
2.7 V ≤ EVDD < 4.0 V, 2.3 V ≤ Vb ≤ 2.7 V, 
C
b = 30 pF, Rb = 2.7 kΩ 
354 ns 
2.4 V ≤ EVDD < 3.3 V, 1.6 V ≤ Vb ≤ 2.0 V, 
C
b = 30 pF, Rb = 5.5 kΩ 
958 ns 
SIp hold time 
(from SCKp↑) 
Note 1
t
KSI1 
4.0 V ≤ EV
DD ≤ 5.5 V, 2.7 V ≤ Vb ≤ 4.0 V, 
C
b = 30 pF, Rb = 1.4 kΩ 
38 ns 
2.7 V ≤ EVDD < 4.0 V, 2.3 V ≤ Vb ≤ 2.7 V, 
C
b = 30 pF, Rb = 2.7 kΩ 
38 ns 
2.4 V ≤ EVDD < 3.3 V, 1.6 V ≤ Vb ≤ 2.0 V, 
C
b = 30 pF, Rb = 5.5 kΩ 
38 ns 
Delay time from SCKp↓ to 
SOp output 
Note 1
t
KSO1 
4.0 V ≤ EV
DD ≤ 5.5 V, 2.7 V ≤ Vb ≤ 4.0 V, 
C
b = 30 pF, Rb = 1.4 kΩ 
 200 ns 
2.7 V ≤ EVDD < 4.0 V, 2.3 V ≤ Vb ≤ 2.7 V, 
C
b = 30 pF, Rb = 2.7 kΩ 
 390 ns 
2.4 V ≤ EVDD < 3.3 V, 1.6 V ≤ Vb ≤ 2.0 V, 
C
b = 30 pF, Rb = 2.7 kΩ 
 966 ns 
SIp setup time 
(to SCKp↓)
 Note 
t
SIK1 
4.0 V ≤ EV
DD ≤ 5.5 V, 2.7 V ≤ Vb ≤ 4.0 V, 
C
b = 30 pF, Rb = 1.4 kΩ 
88 ns 
2.7 V ≤ EVDD < 4.0 V, 2.3 V ≤ Vb ≤ 2.7 V, 
C
b = 30 pF, Rb = 2.7 kΩ 
88 ns 
2.4 V ≤ EVDD < 3.3 V, 1.6 V ≤ Vb ≤ 2.0 V, 
C
b = 30 pF, Rb = 5.5 kΩ 
220 ns 
SIp hold time 
(from SCKp↓) 
Note 2
t
KSI1 
4.0 V ≤ EV
DD ≤ 5.5 V, 2.7 V ≤ Vb ≤ 4.0 V, 
C
b = 30 pF, Rb = 1.4 kΩ 
38 ns 
2.7 V ≤ EVDD < 4.0 V, 2.3 V ≤ Vb ≤ 2.7 V, 
C
b = 30 pF, Rb = 2.7 kΩ 
38 ns 
2.4 V ≤ EVDD < 3.3 V, 1.6 V ≤ Vb ≤ 2.0 V, 
C
b = 30 pF, Rb = 5.5 kΩ 
38 ns 
Delay time from SCKp↑ to 
SOp output 
Note 2
t
KSO1 
4.0 V ≤ EV
DD ≤ 5.5 V, 2.7 V ≤ Vb ≤ 4.0 V, 
C
b = 30 pF, Rb = 1.4 kΩ 
 50 ns 
2.7 V ≤ EVDD < 4.0 V, 2.3 V ≤ Vb ≤ 2.7 V, 
C
b = 30 pF, Rb = 2.7 kΩ 
 50 ns 
2.4 V ≤ EVDD < 3.3 V, 1.6 V ≤ Vb ≤ 2.0 V, 
C
b = 30 pF, Rb = 5.5 kΩ 
 50 ns 
(Notes, Caution and Remarks are listed on the page after the next page.) 










