RX24U Datasheet, PDF (76/131 Pages) Renesas Technology Corp – 32-bit RXv2 CPU core

RX24U Group
5. Electrical Characteristics
Table 5.10 DC Characteristics (8)
Conditions: VCC = 2.7 V to 5.5 V, AVCC0 = AVCC1 = AVCC2 = VREFH0 = VREFH1 = VREFH2 = VCC to 5.5 V,
VSS = AVSS0 = AVSS1 = AVSS2 = VREFL0 = VREFL1 = VREFL2 = 0 V, T_a = –40 to +85°C
The ripple voltage must meet the allowable ripple frequency f_{r (VCC)} within the range between the VCC upper limit (5.5 V) and
lower limit (2.7 V). When VCC change exceeds VCC ±10%, the allowable voltage change rising/falling gradient dt/dVCC must be
met.
Item
Symbol
Min.
Typ.
Max.
Unit
Test Conditions
Allowable ripple frequency
f_{r (VCC)}
—
—
10
kHz Figure 5.3
V_{r (VCC)} ≤ VCC × 0.2
—
—
1
MHz Figure 5.3
V_{r (VCC)} ≤ VCC × 0.08
—
—
10
MHz Figure 5.3
V_{r (VCC)} ≤ VCC × 0.06
Allowable voltage change dt/dVCC
1.0
—
—
ms/V When VCC change exceeds VCC ±10%
rising/falling gradient
VCC
1 / f_{r (VCC)}
V_{r (VCC)}
Figure 5.3
Ripple Waveform
Table 5.11 DC Characteristics (9)
Conditions: VCC = 2.7 V to 5.5 V, AVCC0 = AVCC1 = AVCC2 = VREFH0 = VREFH1 = VREFH2 = VCC to 5.5 V,
VSS = AVSS0 = AVSS1 = AVSS2 = VREFL0 = VREFL1 = VREFL2 = 0 V, T_a = –40 to +85°C
Item
Symbol
Min.
Typ.
Max.
Unit
Test Conditions
Permissible error of VCL pin external
C_VCL
3.3
4.7
6.1
μF
capacitance
Note: The recommended capacitance is 4.7 μF. Variations in connected capacitors should be within the above range.
R01DS0278EJ0100 Rev.1.00
Mar 31, 2017
Page 76 of 131