Renesas rl78 User Manual
RL78/G1A
CHAPTER 29 ELECTRICAL SPECIFICATIONS (T
A
=
−40 to +85°C)
R01UH0305EJ0200 Rev.2.00
870
Jul 04, 2013
29.5 Peripheral Functions Characteristics
AC Timing Test Points
V
IH
/V
OH
V
IL
/V
OL
Test points
V
IH
/V
OH
V
IL
/V
OL
29.5.1 Serial array unit
(1) During communication at same potential (UART mode)
(T
A
=
−40 to +85°C, 1.6 V ≤ EV
DD0
≤ V
DD
≤ 3.6 V, V
SS
= EV
SS0
= 0 V)
HS
Note 1
LS
Note 2
LV
Note 3
Parameter Symbol
Conditions
MIN.
MAX.
MIN.
MAX. MIN. MAX.
Unit
2.4 V
≤ EV
DD
≤ 3.6 V
f
MCK
/6
f
MCK
/6 f
MCK
/6
bps
Theoretical value of the
maximum transfer rate
f
MCK
= f
CLK
Note 6
5.3
Note 5
1.3 0.6 Mbps
1.8 V
≤ EV
DD
≤ 3.6 V
f
MCK
/6
f
MCK
/6 f
MCK
/6
bps
Theoretical value of the
maximum transfer rate
f
MCK
= f
CLK
Note 6
5.3
Note 5
1.3 0.6 Mbps
1.7 V
≤ EV
DD
≤ 3.6 V
f
MCK
/6
f
MCK
/6 f
MCK
/6
bps
Theoretical value of the
maximum transfer rate
f
MCK
= f
CLK
Note 6
5.3
Note 5
1.3
Note 5
0.6 Mbps
1.6 V
≤ EV
DD
≤ 3.6 V
−
f
MCK
/6 f
MCK
/6
bps
Transfer rate
Note 4
Theoretical value of the
maximum transfer rate
f
MCK
= f
CLK
Note 6
−
1.3
Note 5
0.6 Mbps
Notes 1. HS is condition of HS (high-speed main) mode.
2. LS is condition of LS (low-speed main) mode.
3. LV is condition of LV (low-voltage main) mode.
4. Transfer rate in the SNOOZE mode is 4800 bps.
5. The following conditions are required for low-voltage interface when EV
DD0
< V
DD
.
2.4 V
≤ EV
DD0
< 2.7 V : MAX. 2.6 Mbps
1.8 V
≤ EV
DD0
< 2.4 V : MAX. 1.3 Mbps
1.6 V
≤ EV
DD0
< 1.8 V : MAX. 0.6 Mbps
6. f
CLK
in each operating mode is as below.
HS (high-speed main) mode: f
CLK
= 32 MHz
LS (low-speed main) mode: f
CLK
= 8 MHz
LV (low-voltage main) mode: f
CLK
= 4 MHz
Caution Select the normal input buffer for the RxDq pin and the normal output mode for the TxDq pin by using
port input mode register g (PIMg) and port output mode register g (POMg).
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