PCD3349AP datasheet(15/20 Pages) PHILIPS

No. de pieza	PCD3349AP

Descripción Electrónicos	8-bit microcontroller with DTMF generator

PDF	20 Pages

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Fabricante Electrónico	PHILIPS [NXP Semiconductors]

Página de inicio	http://www.nxp.com

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15 / 20 page

1998 May 11

Philips Semiconductors

Product speciﬁcation

8-bit microcontroller with DTMF generator

PCD3349A

16 AC CHARACTERISTICS

VDD = 1.8 to 6 V; VSS =0V; Tamb = −25 to +70 °C; all voltages with respect to VSS; unless otherwise speciﬁed.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

rise time all outputs

VDD =5V; Tamb =25 °C; CL =50pF

−

fall time all outputs

−

fxtal

clock frequency

see Fig.14

−

MHz

Oscillator (see Fig.15)

gmL

LOW transconductance

VDD = 5 V

0.2

0.4

1.0

gmM

MEDIUM transconductance

0.9

1.6

3.2

gmH

HIGH transconductance

3.0

4.5

9.0

feedback resistor

0.3

1.0

3.0

Ω

handbook, halfpage

MLA493

VDD (V)

fxtal

(MHz)

guaranteed

operating range

Fig.14 Maximum clock frequency (fxtal) as a

function of supply voltage (VDD).

Fig.15 Typical transconductance as a function of

supply voltage (VDD).

handbook, halfpage

VDD (V)

−1

MBG097

(mS)

gmH

gmM

gmL

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