Rainbow-electronics DS1602 Manual de usuario descargar pdf (Pagina 8)

DS1602

8 of 8

AC ELECTRICAL CHARACTERISTICS (V

= +5V ±10%; -40°C to 85°C)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

Data to CLK Setup t

50 ns 7

CLK to Data Hold t

CDH

60 ns 7

CLK to Data Delay t

CDD

200 ns 7, 8, 9

CLK Low Time t

250 ns 7

CLK High Time t

250 ns 7

CLK Frequency f

CLK

DC 2.0 MHz 7

CLK Rise and Fall t

500 ns

RST to CLK Setup

100 ns 7

CLK to RST Hold

CCH

60 ns 7

RST Inactive Time

CWH

1 µs 7

RST Low to I/O High-Z

RDZ

70 ns 7

CLK High to I/O High-Z t

CDZ

20 ns 7

NOTES:

1) All voltages are referenced to ground.

2) Logic 1 voltages are specified at a source current of 1mA.

3) Logic 0 voltages are specified at a sink current of 4mA.

4) I

is specified with the DQ pin open.

5) I

CC1

is specified with V

at 5.0V and RST = GND.

6) I

BAT

is specified with V

< V

BAT

and V

BAT

within DC recommended operating conditions.

7) Measured at V

= 2.0V or V

= 0.8V.

8) Measured at V

= 2.4V or V

= 0.4V.

9) Load capacitance = 50pF.

10) Specified as the load capacitance for which the crystal frequency is guaranteed (see crystal

manufacturer’s data sheet).

11) Leakage current is the amount of current consumed from the battery when V

is not present and the

oscillator is turned off.

12) Using a crystal on X1 and X2.

1 2 3 4 5 6 7 8

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