Datasheet

RL78/G14 2. ELECTRICAL SPECIFICATIONS (A, D: TA = -40 to +85 C)
R01DS0053EJ0200 Rev. 2.00 Page 96 of 187
Oct 25, 2013
Note 1. The value must also be equal to or less than fMCK/4.
Note 2. Use it with EVDD0  Vb.
Note 3. Set the fMCK value to keep the hold time of SCLr = “L” and SCLr = “H”.
Caution Select the TTL input buffer and the N-ch open drain output (VDD tolerance (When 30- to 52-pin products)/EVDD
tolerance (When 64- to 100-pin products)) mode for the SDAr pin and the N-ch open drain output (VDD tolerance
(When 30- to 52-pin products)/EV
DD tolerance (When 64- to 100-pin products)) mode for the SCLr 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.)
(10) Communication at different potential (1.8 V, 2.5 V, 3 V) (simplified I
2
C mode)
(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.
Data setup time
(reception)
t
SU:DAT 4.0 V  EVDD0  5.5 V,
2.7 V
 Vb  4.0 V,
C
b = 50 pF, Rb = 2.7 k
1/fMCK + 135
Note 3
1/fMCK + 190
Note 3
1/fMCK + 190
Note 3
ns
2.7 V
 EVDD0 < 4.0 V,
2.3 V
 Vb  2.7 V,
C
b = 50 pF, Rb = 2.7 k
1/fMCK + 135
Note 3
1/fMCK + 190
Note 3
1/fMCK + 190
Note 3
ns
4.0 V
 EVDD0  5.5 V,
2.7 V
 Vb  4.0 V,
C
b = 100 pF, Rb = 2.8 k
1/fMCK + 190
Note 3
1/fMCK + 190
Note 3
1/fMCK + 190
Note 3
ns
2.7 V
 EVDD0 < 4.0 V,
2.3 V
 Vb  2.7 V,
C
b = 100 pF, Rb = 2.7 k
1/fMCK + 190
Note 3
1/fMCK + 190
Note 3
1/fMCK + 190
Note 3
ns
1.8 V
 EVDD0 < 3.3 V,
1.6 V
 Vb  2.0 V
Note 2
,
C
b = 100 pF, Rb = 5.5 k
1/fMCK + 190
Note 3
1/fMCK + 190
Note 3
1/fMCK + 190
Note 3
ns
Data hold time
(transmission)
t
HD:DAT 4.0 V  EVDD0  5.5 V,
2.7 V
 Vb  4.0 V,
C
b = 50 pF, Rb = 2.7 k
0 305 0 305 0 305 ns
2.7 V
 EVDD0 < 4.0 V,
2.3 V
 Vb  2.7 V,
C
b = 50 pF, Rb = 2.7 k
0 305 0 305 0 305 ns
4.0 V
 EVDD0  5.5 V,
2.7 V
 Vb  4.0 V,
C
b = 100 pF, Rb = 2.8 k
0 355 0 355 0 355 ns
2.7 V
 EVDD0 < 4.0 V,
2.3 V
 Vb  2.7 V,
C
b = 100 pF, Rb = 2.7 k
0 355 0 355 0 355 ns
1.8 V
 EVDD0 < 3.3 V,
1.6 V
 Vb  2.0 V
Note 2
,
C
b = 100 pF, Rb = 5.5 k
0 405 0 405 0 405 ns