Rainbow Electronics DS1602 - Manual (Page 8)

DS1602
8 of 8
AC ELECTRICAL CHARACTERISTICS (V
CC
= +5V ±10%; -40°C to 85°C)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Data to CLK Setup t
DC
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
CL
250 ns 7
CLK High Time t
CH
250 ns 7
CLK Frequency f
CLK
DC 2.0 MHz 7
CLK Rise and Fall t
F,
t
R
500 ns
RST to CLK Setup
t
CC
100 ns 7
CLK to RST Hold
t
CCH
60 ns 7
RST Inactive Time
t
CWH
1 µs 7
RST Low to I/O High-Z
t
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
CC
is specified with the DQ pin open.
5) I
CC1
is specified with V
CC
at 5.0V and RST = GND.
6) I
BAT
is specified with V
CC
< V
BAT
and V
BAT
within DC recommended operating conditions.
7) Measured at V
IH
= 2.0V or V
IL
= 0.8V.
8) Measured at V
OH
= 2.4V or V
OL
= 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
CC
is not present and the
oscillator is turned off.
12) Using a crystal on X1 and X2.