PCF84C00B datasheet(13/24 Pages) PHILIPS

13 / 24 page

1996 Nov 25

Philips Semiconductors

Product speciﬁcation

8-bit microcontroller with I2C-bus interface

PCF84C00

10 AC 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. At VDD = 5 V; Tamb =25 °C; CL =50pF.

2. 1 time slot (TS) = 3CP, 1 clock pulse (CP) = 1/fxtal.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.(2)

MAX.

UNIT

rise time all outputs

note 1

−

fall time all outputs

note 1

−

Tcy

cycle time

30CP; note 2

−

µs

PCF84C00/non-standard pins:

tCC

control pulse width

Fig.16

−

9CP

−µs

tAS

address to PSEN set-up

Fig.16

−

1.5CP

−µs

tDS

data to PSEN set-up

Fig.16

−

2CP

−µs

tDR

data hold time

Fig.16

−−

tSDO

data out to DWXR set-up

Fig.17

−

2CP

−µs

tHDO

data out to DXWR hold

Fig.17

−

1CP

−µs

tSLPH

time from DXALE to PSEN Figs 14, 15 and 17

−

1.5CP

−µs

tDS1

data-in to DXRD set-up

Figs 14, 15 and 17

−

2.5CP

−µs

tDR1

data-in to DXRD hold

Figs 14 and 17

−−

tDXALE

HIGH time of DXALE

Figs 14, 15 and 17

−

4.5CP

−µs

tDXRD

LOW time of DXRD

Figs 14 and 17

−

6CP

−µs

tDXWR

LOW time of DXWR

Figs 15 and 17

−

3CP

−µs

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