PCD3359AP datasheet(22/32 Pages) PHILIPS

22 / 32 page

1998 May 11

Philips Semiconductors

Product speciﬁcation

8-bit microcontroller with DTMF

generator and 128 bytes EEPROM

PCD3359A

Notes

1. TONE output, EEPROM erase and write require VDD ≥ 2.5 V.

2. VIL =VSS; VIH =VDD; open-drain outputs connected to VSS; all other outputs open; value HGF = LGF = 0, unless

otherwise specified.

a) Maximum values: external clock at XTAL1 and XTAL2 open-circuit.

b) Typical values: Tamb =25 °C; crystal connected between XTAL1 and XTAL2.

3. VIL =VSS; VIH =VDD; RESET, T1 and CE/T0 at VSS; crystal connected between XTAL1 and XTAL2; pins T1 and

CE/T0 at VSS.

4. Values are specified for DTMF frequencies only (CEPT).

5. Related to the Low Group Frequency (LGF) component (CEPT).

6. After final testing the value of each EEPROM bit is a logic 1, but this cannot be guaranteed after board assembly.

7. Verified on sampling basis.

EEPROM (notes 1 and 6)

CYt/w

endurance (erase/write cycles) note 7

105

−−

tret

data retention time

−−

years

Power-on reset (see Fig.17)

VPOR

Power-on-reset level

conﬁguration as PCD3756A;

(see Table 25)

0.8

1.3

1.8

Oscillator (see Fig.18)

transconductance

VDD = 5 V

0.2

0.4

1.0

feedback resistor

0.3

1.0

3.0

Ω

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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