Datasheet
RL78/G13 2. ELECTRICAL SPECIFICATIONS (A, D: T
A = -40 to +85°C)
Page 111 of 194R01DS0131EJ0310 Rev.3.10
Nov 15, 2013
(2) I
2
C fast mode
(T
A = −40 to +85°C, 1.6 V ≤ EVDD0 = EVDD1 ≤ VDD ≤ 5.5 V, VSS = EVSS0 = EVSS1 = 0 V)
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.
SCLA0 clock frequency fSCL
Fast mode:
f
CLK ≥ 3.5 MHz
2.7 V ≤ EV
DD0 ≤ 5.5 V 0 400 0 400 0 400 kHz
1.8 V ≤ EVDD0 ≤ 5.5 V 0 400 0 400 0 400 kHz
Setup time of restart
condition
tSU:STA 2.7 V ≤ EVDD0 ≤ 5.5 V 0.6 0.6 0.6
μ
s
1.8 V ≤ EVDD0 ≤ 5.5 V 0.6 0.6 0.6
μ
s
Hold time
Note 1
t
HD:STA 2.7 V ≤ EVDD0 ≤ 5.5 V 0.6 0.6 0.6
μ
s
1.8 V ≤ EVDD0 ≤ 5.5 V 0.6 0.6 0.6
μ
s
Hold time when SCLA0 =
“L”
tLOW 2.7 V ≤ EVDD0 ≤ 5.5 V 1.3 1.3 1.3
μ
s
1.8 V ≤ EVDD0 ≤ 5.5 V 1.3 1.3 1.3
μ
s
Hold time when SCLA0 =
“H”
tHIGH 2.7 V ≤ EVDD0 ≤ 5.5 V 0.6 0.6 0.6
μ
s
1.8 V ≤ EVDD0 ≤ 5.5 V 0.6 0.6 0.6
μ
s
Data setup time
(reception)
tSU:DAT 2.7 V ≤ EVDD0 ≤ 5.5 V 100 100 100
μ
s
1.8 V ≤ EVDD0 ≤ 5.5 V 100 100 100
μ
s
Data hold time
(transmission)
Note 2
t
HD:DAT 2.7 V ≤ EVDD0 ≤ 5.5 V 0 0.9 0 0.9 0 0.9
μ
s
1.8 V ≤ EVDD0 ≤ 5.5 V 0 0.9 0 0.9 0 0.9
μ
s
Setup time of stop
condition
tSU:STO 2.7 V ≤ EVDD0 ≤ 5.5 V 0.6 0.6 0.6
μ
s
1.8 V ≤ EVDD0 ≤ 5.5 V 0.6 0.6 0.6
μ
s
Bus-free time tBUF 2.7 V ≤ EVDD0 ≤ 5.5 V 1.3 1.3 1.3
μ
s
1.8 V ≤ EVDD0 ≤ 5.5 V 1.3 1.3 1.3
μ
s
Notes 1. The first clock pulse is generated after this period when the start/restart condition is detected.
2. The maximum value (MAX.) of t
HD:DAT is during normal transfer and a wait state is inserted in the ACK
(acknowledge) timing.
Caution The values in the above table are applied even when bit 2 (PIOR2) in the peripheral I/O redirection
register (PIOR) is 1. At this time, the pin characteristics (I
OH1, IOL1, VOH1, VOL1) must satisfy the
values in the redirect destination.
Remark The maximum value of Cb (communication line capacitance) and the value of Rb (communication line
pull-up resistor) at that time in each mode are as follows.
Fast mode: C
b = 320 pF, Rb = 1.1 kΩ