R8C28 datasheet(25/73 Pages) RENESAS

25 / 73 page

R8C/28 Group, R8C/29 Group

5. Electrical Characteristics

Rev.2.10

Sep 26, 2008

Page 23 of 67

REJ03B0169-0210

NOTES:

1. AVCC = 2.2 to 5.5 V at Topr = -20 to 85

°C (N version) / -40 to 85°C (D version), unless otherwise specified.

2. When the analog input voltage is over the reference voltage, the A/D conversion result will be 3FFh in 10-bit mode and FFh in

8-bit mode.

Figure 5.1

Ports P1, P3, and P4 Timing Measurement Circuit

Table 5.3

A/D Converter Characteristics

Symbol

Parameter

Conditions

Standard

Unit

Min.

Typ.

Max.

−

Resolution

Vref = AVCC

−−

Bits

−

Absolute

accuracy

10-bit mode

φAD = 10 MHz, Vref = AVCC = 5.0 V

−−

±3

LSB

8-bit mode

φAD = 10 MHz, Vref = AVCC = 5.0 V

−−

±2

LSB

10-bit mode

φAD = 10 MHz, Vref = AVCC = 3.3 V

−−

±5

LSB

8-bit mode

φAD = 10 MHz, Vref = AVCC = 3.3 V

−−

±2

LSB

10-bit mode

φAD = 5 MHz, Vref = AVCC = 2.2 V

−−

±5

LSB

8-bit mode

φAD = 5 MHz, Vref = AVCC = 2.2 V

−−

±2

LSB

Rladder

Resistor ladder

Vref = AVCC

−

Ω

tconv

Conversion time

10-bit mode

φAD = 10 MHz, Vref = AVCC = 5.0 V

3.3

−−

µs

8-bit mode

φAD = 10 MHz, Vref = AVCC = 5.0 V

2.8

−−

µs

Vref

Reference voltage

2.2

−

AVCC

VIA

Analog input voltage(2)

−

AVCC

−

A/D operating

clock frequency

Without sample and hold

Vref = AVCC = 2.7 to 5.5 V

0.25

−

MHz

With sample and hold

Vref = AVCC = 2.7 to 5.5 V

−

MHz

Without sample and hold

Vref = AVCC = 2.2 to 5.5 V

0.25

−

5MHz

With sample and hold

Vref = AVCC = 2.2 to 5.5 V

−

5MHz

30pF

R8C28 Datasheet(PDF) 25 Page - Renesas Technology Corp

R8C28 Datasheet(HTML) 25 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73

Datasheet Download

Link URL