P89LPC921 datasheet(35/45 Pages) PHILIPS

35 / 45 page

Philips Semiconductors

P89LPC920/921/922

8-bit microcontrollers with two-clock 80C51 core

Product data

Rev. 06 — 21 November 2003

35 of 45

9397 750 12285

10. Static characteristics

[1]

Typical ratings are not guaranteed. The values listed are at room temperature, 3 V.

Table 8:

DC electrical characteristics

VDD = 2.4 V to 3.6 V unless otherwise speciﬁed.

Tamb = −40 °C to +85 °C for industrial, unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ[1]

Max

Unit

IDD

power supply current, operating

3.6 V; 12 MHz

[2]

IID

power supply current, Idle mode

3.6 V; 12 MHz

[2]

3.25

IPD

Power supply current,

Power-down mode, voltage

comparators powered-down

3.6 V

[2]

<t.b.d.>

µA

IPD1

Power supply current,

Total Power-down mode

3.6 V

[2]

-1

µA

VDDR

VDD rise time

mV/

µs

VDDF

VDD fall time

mV/

µs

VPOR

Power-on reset detect voltage

0.2

VRAM

RAM keep-alive voltage

1.5

Vth(HL)

negative-going threshold voltage

(except SCL, SDA)

0.22VDD

0.4VDD

-V

VIL1

LOW-level input voltage

(SCL, SDA only)

−0.5

0.3VDD

Vth(LH)

positive-going threshold voltage

(except SCL, SDA)

0.6VDD

0.7VDD

VIH1

HIGH-level input voltage

(SCL, SDA only)

0.7VDD

5.5

Vhys

hysteresis voltage

Port 1

0.2VDD

-V

VOL

LOW-level output voltage; all ports,

all modes except Hi-Z[3]

IOL = 20 mA

0.6

1.0

IOL = 3.2 mA

0.2

0.3

VOH

HIGH-level output voltage, all ports IOH = −20 mA;

push-pull mode

<t.b.d.>

IOH = −3.2 mA;

push-pull mode

VDD − 0.7 VDD − 0.4 -

IOH = −20 µA;

quasi-bidirectional

mode

VDD − 0.3 VDD − 0.2 -

Cio

input/output pin capacitance

[4]

IIL

logical 0 input current, all ports

VIN = 0.4 V

[5]

−80

µA

ILI

input leakage current, all ports

VIN =VIL or VIH

[6]

±10

µA

ITL

logical 1-to-0 transition current,

all ports

VIN = 2.0 V at

VDD = 3.6 V

[7], [8]

−30

−450

µA

RRST

internal reset pull-up resistor

Ω

VBO

brownout trip voltage with

BOV = ‘0’, BOPD = ‘1’

2.4 V < VDD < 3.6 V

2.40

2.70

VREF

bandgap reference voltage

1.11

1.23

1.34

TC(VREF)

bandgap temperature coefﬁcient

ppm/

°C

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