PCF84C41AP datasheet(7/20 Pages) PHILIPS

7 / 20 page

1996 Nov 20

Philips Semiconductors

Product speciﬁcation

Telecom microcontrollers

PCF84C21A; PCF84C41A;

PCF84C81A

11 DC CHARACTERISTICS

VDD = 2.5 to 5.5 V; VSS =0V; Tamb = −40 to +85 °C; all voltages with respect to VSS; unless otherwise speciﬁed.

Notes

1. VIL =VSS; VIH =VDD; open drain outputs connected to VSS; all other outputs, including XTAL2, open (typical values

at 25

°C with crystal connected between XTAL1 and XTAL2).

2. VIL =VSS; VIH =VDD; RESET and T1 at VSS; INT/T0 at VDD; crystal connected between XTAL1 and XTAL2; open

drain outputs connected to VSS; all other outputs open.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

VDD

operating supply voltage

see Fig.3

2.5

−

5.5

IDD

operating supply current

note 1; see Figs 4 and 5

VDD = 3 V; fxtal = 3.58 MHz (gmL)

−

0.3

0.6

VDD = 5 V; fxtal = 10 MHz (gmL)

−

1.1

3.0

VDD = 5 V; fxtal = 16 MHz (gmM)

−

1.7

5.0

VDD = 5 V; fxtal = 16 MHz (gmH)

−

2.5

6.0

IDD(idle)

supply current (Idle mode)

note 1; see Figs 6 and 7

VDD = 3 V; fxtal = 3.58 MHz (gmL)

−

0.2

0.4

VDD = 5 V; fxtal = 10 MHz (gmL)

−

0.8

1.6

VDD = 5 V; fxtal = 16 MHz (gmM)

−

1.2

4.0

VDD = 5 V; fxtal = 16 MHz (gmH)

−

1.7

5.0

IDD(stp)

supply current (Stop mode)

VDD = 2.5 V; notes 1 and 2; see Fig.8

−

1.2

µA

Inputs

VIL

LOW level input voltage

−

0.3VDD V

VIH

HIGH level input voltage

0.7VDD −

VDD

ILI

input leakage

VSS ≤ VI ≤ VDD

−1

−

µA

Outputs

IOL

LOW level output sink current

[except Port 1; SDA/P2.3 and

SCLK]

VDD =5V; VO = 0.4 V; see Fig.9

PCF84C21A; PCF84C41A

1.6

−

PCF84C81A

1.6

−

IOL1

LOW level output sink current;

Port 1

VDD =5V; VO = 1.2 V; see Fig.10

PCF84C21A; PCF84C41A

−

PCF84C81A

−

IOL2

LOW level output sink current;

SDA/P2.3 and SCLK

VDD = 5 V; VO = 0.4 V; see Fig.11

PCF84C21A; PCF84C41A

−

PCF84C81A

6.5

−

IOH

HIGH level pull-up output

source current

VDD = 5 V; VO = 3.5 V; see Fig.12

100

−µA

VDD = 5 V; VO = 0 V; see Fig.12

−−140 −400

µA

IOH1

HIGH level push-pull output

source current

VDD = 5 V; VO = 4.6 V; see Fig.13

−1.6

−7

−

Oscillator (see Fig.14)

gmL

LOW transconductance

VDD = 5 V

0.2

0.4

1.0

gmM

MEDIUM transconductance

VDD = 5 V

0.9

1.6

3.2

gmH

HIGH transconductance

VDD = 5 V

3.0

4.5

9.0

feedback resistor

0.3

1.0

3.0

Ω

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