Renesas RL78 Series User Manual page 854

RL78/G1D
30.7 Peripheral Functions Characteristics
AC Timing Test Points
30.7.1 Serial array unit
(1) During communication at same potential (UART mode)
(T = –40 to +85°C, 1.6 V ≤ V
A
Parameter Symbol
Note 1
Transfer rate
Notes 1. Transfer rate in the SNOOZE mode is 4800 bps only.
2. Maximum operating frequency of CPU and peripheral hardware clock (f
HS (high-speed main) mode: 32 MHz (2.7 V ≤ V
LS (low-speed main) mode:
LV (low-voltage main) mode:
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).
R01UH0515EJ0120 Rev.1.20
Dec 16, 2016
V /V
IH OH
V /V
IL OL
= V = AV ≤ 3.6 V, V
DD DD_RF DD_RF
Conditions
2.4 V ≤ V ≤ 3.6 V
DD
Theoretical value of the
maximum transfer rate
Note 2
f = f
MCK CLK
1.8 V ≤ V ≤ 3.6 V
DD
Theoretical value of the
maximum transfer rate
Note 2
f = f
MCK CLK
1.6 V ≤ V ≤ 3.6 V
DD
Theoretical value of the
maximum transfer rate
Note 2
f = f
MCK CLK
16 MHz (2.4 V ≤ V
8 MHz (1.8 V ≤ V
4 MHz (1.6 V ≤ V
CHAPTER 30 ELECTRICAL SPECIFICATIONS
V
IH
Test points
V
IL
= V = AV
SS SS_RF SS_RF
HS (high-speed
main) Mode
MAX.
f /6
MCK
5.3
–
–
–
–
≤ 3.6 V)
DD
≤ 3.6 V)
DD
≤ 3.6 V)
DD
≤ 3.6 V)
DD
/V
OH
/V
OL
= 0 V)
LS (low-speed LV (low-voltage
main) Mode main) Mode
MAX. MAX.
f /6 f /6
MCK MCK
1.3 0.6
f /6 f /6
MCK MCK
1.3 0.6
– f /6
MCK
– 0.6
) is following
CLK
Unit
bps
Mbps
bps
Mbps
bps
Mbps
833