Datasheet
RL78/L12 
  CHAPTER 31 ELECTRICAL SPECIFICATIONS (G: TA = -40 to +105°C) 
R01UH0330EJ0200 Rev.2.00      918 
Dec 13, 2013 
31.2.2 On-chip oscillator characteristics 
(T
A = −40 to +105°C, 2.4 V ≤ EVDD = VDD ≤ 5.5 V, VSS = EVSS = 0 V) 
Oscillators Parameters  Conditions  MIN. TYP. MAX. Unit
High-speed on-chip oscillator 
clock frequency
 Notes 1, 2
f
IH  1  24 MHz
High-speed on-chip oscillator 
clock frequency accuracy 
  −20 to +85°C 2.4 V ≤ V
DD ≤ 5.5 V  −1 +1 % 
−40 to −20°C 2.4 V ≤ VDD ≤ 5.5 V  −1.5 +1.5 % 
+85 to +105°C 2.4 V ≤ VDD ≤ 5.5 V  −2.0 +2.0 % 
Low-speed on-chip oscillator 
clock frequency 
f
IL   15  kHz
Low-speed on-chip oscillator 
clock frequency accuracy 
  −15 +15 % 
Notes 1.  High-speed on-chip oscillator frequency is selected by bits 0 to 3 of option byte (000C2H) and bits 0 to 2 of 
HOCODIV register. 
 2. This indicates the oscillator characteristics only. Refer to 31.4 AC Characteristics for instruction execution 
time. 










