7549 datasheet(64/73 Pages) RENESAS

64 / 73 page

Rev.2.00

Mar 05, 2007

Page 64 of 70

REJ03B0202-0200

7549 Group

PRELIMINARY

Notice: This is not a final specification.

Some parametric limits are subject to change.

A/D Converter Characteristics

A/D Converter characteristics

(VCC = 2.7 to 5.5 V, VSS = 0 V, Ta =

−20 to 85 °C, unless otherwise noted)

A/D Converter Recommended Operating Conditions

(VCC = 2.7 to 5.5 V, VSS = 0 V, Ta =

−20 to 85 °C, unless otherwise noted)

NOTE:

1. When XCIN or the low-speed on-chip oscillator is selected as

φSOURCE, the A/D converter cannot be used.

Symbol

Test conditions

Limits

Min.

Typ.

Max.

Unit

bits

Ω

Parameter

Resolution

Absolute accuracy

(excluding quantization error)

Conversion time

Ladder resistor

A/D port input current

5.0

µA

tCONV

RLADDER

II(AD)

tc(

φSOURCE)

122

tc(

φSOURCE)

A/D conversion clock = f(

φSOURCE)

A/D conversion clock = f(

φSOURCE)/2

LSB

Ta =

−20−85 °C, 2.7 ≤ Vcc ≤ 5.5V

TBD

Symbol

Parameter

Test conditions

Limits

Unit

A/D conversion clock

frequency (Note)

φ(AD)

MHz

4.0

≤ Vcc ≤ 5.5 V

TBD

MHz

TBD

2.7

≤ Vcc < 4.0 V

Power source voltage

Ta =

−20−85 °C

Min.

Typ.

Max.

2.7

5.5

VCC

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