PCD6003 datasheet(9/96 Pages) PHILIPS

9 / 96 page

2001 Apr 17

Philips Semiconductors

Product speciﬁcation

Digital telephone answering machine chip

PCD6003

Note

1. The pin type codes are explained in Section 6.3.

P2.2

ucp4mthuwh

general purpose output, EA = 1; add_high; EA = 0

P2.3

ucp4mthuwh

general purpose output, EA = 1; add_high; EA = 0

P2.4

ucp4mthuwh

general purpose output, EA = 1; add_high; EA = 0

P2.5

ucp4mthuwh

general purpose output, EA = 1; add_high; EA = 0

P2.6

ucp4mthuwh

general purpose output, EA = 1; add_high; EA = 0

P2.7

ucp4mthuwh

general purpose output, EA = 1; add_high; EA = 0

SYMBOL

I/O

RESET

STATE

PIN TYPE(1)

DESCRIPTION

6.3

Pin types

6.3.1

POWER SUPPLY PINS

There are 6 different power supply domains (see Fig.3):

• Digital core circuit (2.5 V): VDD3V1/VSS3V1

• Digital periphery circuit (3.0 V): VDD3V2/VSS3V2 and

VDD3V3/VSS3V3

• PLL circuits and crystal oscillator (2.5 V): VDDPLL and

VSSPLL

• Analog circuits (2.5 V): VDDA and VSSA.

All VSS pins must be connected to the same ground plane

on the Printed-Circuit Board (PCB). All 2.5 V VDD pins

must be connected to the same power supply. All VDD pins

have to be separately decoupled, according to Chapter 18.

6.3.2

ANALOG PINS

• ana: full ESD protected analog I/O pad (double

protection diode).

6.3.3

DIGITAL PINS

• ucp4mthuwh: 4 mA 80C51 I/O pins

• uceda4mtuwh: 4 mA 80C51 I/O pins with input enable

• iptd: input pad buffer; pull-down

• ipth: input pad buffer with Schmitt trigger

• ops10c: output pad; push-pull; 4 mA output drive; 10 ns

slew control

• I2C400k: bidirectional open-drain I2C-bus compatible

pad.

handbook, halfpage

MGT429

VDD3V1

VSS3V1

VDD3V2

VSS3V2

VDD3V3

VSS3V3

VDDPLL

VSSPLL

VDDA

VSSA

Fig.3 PCD6003 chip supply rails with protection diodes.

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