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RL78G12_15 Datasheet, PDF (47/110 Pages) Renesas Technology Corp – RENESAS MCU
RL78/G12
2. ELECTRICAL SPECIFICATIONS (A, D: TA = −40 to +85°C)
<R> (9) Communication at different potential (1.8 V, 2.5 V, 3 V) (CSI mode) (slave mode, SCKp... external clock input)
(TA = −40 to +85°C, 1.8 V ≤ VDD ≤ 5.5 V, VSS = 0 V)
Parameter
Symbol
Conditions
HS (high-speed main) LS (low-speed main) Unit
Mode
Mode
MIN.
MAX.
MIN.
MAX.
SCKp cycle time Note 1 tKCY2
4.0 V ≤ VDD ≤ 5.5 V, 20 MHz < fMCK ≤ 24 MHz 12/fMCK
−
ns
2.7 V ≤ Vb ≤ 4.0 V 8 MHz < fMCK ≤ 20 MHz
10/fMCK
−
ns
4 MHz < fMCK ≤ 8 MHz
8/fMCK
16/fMCK
ns
fMCK ≤ 4 MHz
6/fMCK
10/fMCK
ns
2.7 V ≤ VDD < 4.0 V, 20 MHz < fMCK ≤ 24 MHz 16/fMCK
−
ns
2.3 V ≤ Vb ≤ 2.7 V 16 MHz < fMCK ≤ 20 MHz 14/fMCK
−
ns
8 MHz < fMCK ≤ 16 MHz
12/fMCK
−
ns
4 MHz < fMCK ≤ 8 MHz
8/fMCK
16/fMCK
ns
fMCK ≤ 4 MHz
6/fMCK
10/fMCK
ns
1.8 V ≤ VDD < 3.3 V, 20 MHz < fMCK ≤ 24 MHz 36/fMCK
−
ns
1.6 V ≤ Vb ≤ 2.0 V
Note 2
16 MHz < fMCK ≤ 20 MHz
8 MHz < fMCK ≤ 16 MHz
32/fMCK
26/fMCK
−
ns
−
ns
4 MHz < fMCK ≤ 8 MHz
16/fMCK
16/fMCK
ns
fMCK ≤ 4 MHz
10/fMCK
10/fMCK
ns
SCKp high-/low-level tKH2,
4.0 V ≤ VDD ≤ 5.5 V, 2.7 V ≤ Vb ≤ 4.0 V
tKCY2/2 − 12
tKCY2/2 − 50
ns
width
tKL2
2.7 V ≤ VDD < 4.0 V, 2.3 V ≤ Vb ≤ 2.7 V
tKCY2/2 − 18
tKCY2/2 − 50
ns
1.8 V ≤ VDD < 3.3 V, 1.6 V ≤ Vb ≤ 2.0 V Note 2
tKCY2/2 − 50
tKCY2/2 − 50
ns
SIp setup time
tSIK2
4.0 V ≤ VDD ≤ 5.5 V, 2.7 V ≤ VDD ≤ 4.0 V
1/fMCK + 20
1/fMCK + 30
ns
(to SCKp↑) Note 3
2.7 V ≤ VDD < 4.0 V, 2.3 V ≤ Vb ≤ 2.7 V
1/fMCK + 20
1/fMCK + 30
ns
1.8 V ≤ VDD < 3.3 V, 1.6 V ≤ VDD ≤ 2.0 V Note 2
1/fMCK + 30
1/fMCK + 30
ns
SIp hold time
tKSI2
(from SCKp↑) Note 4
1/fMCK + 31
1/fMCK + 31
ns
Delay time from
SCKp↓ to SOp
output Note 5
tKSO2
4.0 V ≤ VDD ≤ 5.5 V, 2.7 V ≤ Vb ≤ 4.0 V,
Cb = 30 pF, Rb = 1.4 kΩ
2.7 V ≤ VDD < 4.0 V, 2.3 V ≤ Vb ≤ 2.7 V,
Cb = 30 pF, Rb = 2.7 kΩ
2/fMCK +
120
2/fMCK +
214
2/fMCK + ns
573
2/fMCK + ns
573
1.8 V ≤ VDD < 3.3 V, 1.6 V ≤ Vb ≤ 2.0 V Note 2,
Cb = 30 pF, Rb = 5.5 kΩ
2/fMCK +
573
2/fMCK + ns
573
Notes 1.
2.
3.
4.
5.
Transfer rate in the SNOOZE mode: MAX. 1 Mbps
Use it with VDD ≥ Vb.
When DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1. The SIp setup time becomes “to
SCKp↓” when DAPmn = 0 and CKPmn = 1, or DAPmn = 1 and CKPmn = 0.
When DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1. The SIp hold time becomes “from
SCKp↓” when DAPmn = 0 and CKPmn = 1, or DAPmn = 1 and CKPmn = 0.
When DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1. The delay time to SOp output
becomes “from SCKp↑” when DAPmn = 0 and CKPmn = 1, or DAPmn = 1 and CKPmn = 0.
Cautions 1. Select the TTL input buffer for the SIp and SCKp pins and the N-ch open drain output (VDD
tolerance) mode for the SOp pin by using port input mode register 1 (PIM1) and port output mode
register 1 (POM1). For VIH and VIL, see the DC characteristics with TTL input buffer selected.
2. CSI01 and CSI11 cannot communicate at different potential.
R01DS0193EJ0200 Rev.2.00
Sep 06, 2013
Page 47 of 106