7630 datasheet(176/238 Pages) RENESAS

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3-5

APPENDIX

3.1 Electrical characteristics

7630 Group User’s Manual

3.1.4 A-D converter characteristics

3.1.5 Timing requirements

Unit

Bits

LSB

tc(XIN)

µA

Ω

µA

Table 3.1.4 A-D converter characteristics

(Vcc = 4.0V to 5.5V, Vss = AVss = 0V, Ta = –40

°C to 85°C, unless otherwise noted)

Symbol

–

tCONV

VREF

IREF

RLADDER

IIAN

Parameter

Resolution

Absolute accuracy

Conversion time

Reference input voltage

Reference input current

Ladder resistor value

Analog input current

Test conditions

High- speed mode

Middle-speed mode

VCC = VREF = 5.12V

VI = VSS to VCC

Limits

Min.

Typ.

Max.

±1

±2.5

106

108

424

432

2.0

VCC

150

200

0.5

Symbol

____________

tW(RESET)

tC(XIN)

tWH(XIN)

tWL(XIN)

tC(CNTR)

tWH(CNTR)

tWL(CNTR)

tL(CNTR0–TX0)

tC(TX0)

tWH(TX0)

tWL(TX0)

tWH(INT)

tWL(INT)

tC(SCLK)

tWH(SCLK)

tWL(SCLK)

tsu(SIN–SCLK)

tH(SCLK–SIN)

Table 3.1.5 Timing requirements

(Vcc = 4.0V to 5.5V, Vss = AVss = 0V, Ta = –40

°C to 85°C, unless otherwise noted)

Parameter

Reset input “L” pulse width

External clock input cycle time

External clock input “H” pulse width

External clock input “L” pulse width

CNTR0, CNTR1 input cycle time

(except bi-phase counter mode)

CNTR0, input cycle time

(bi-phase counter mode)

CNTR0, CNTR1 input “H” pulse width

(except bi-phase counter mode)

CNTR0, input “H” pulse width

(bi-phase counter mode)

CNTR0, CNTR1 input “L” pulse width

(except bi-phase counter mode)

CNTR0, input “L” pulse width

(bi-phase counter mode)

Lag of CNTR0 and TX0 input edges

(bi-phase counter mode)

TX0 input cycle time

(bi-phase counter mode)

TX0 input “H” pulse width

(bi-phase counter mode)

TX0 input “L” pulse width

(bi-phase counter mode)

INT0, INT1 input “H” pulse width

INT0, INT1 input “L” pulse width

Serial I/O clock input cycle time

Serial I/O clock input “H” pulse width

Serial I/O clock input “L” pulse width

Serial I/O clock input set up time

Serial I/O clock input hold time

Limits

Min.

Typ.

Max.

100

1600

2000

800

1000

800

1000

500

3200

1600

460

8tc(XIN)

4tc(XIN)

200

150

Unit

µs

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