Rainbow Electronics DS1615 - Manual (Page 22)

DS1615
22 of 24
AC ELECTRICAL CHARACTERISTICS (-40 °C to +85°C; V
CC
=5.0V ±10%)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Vcc rise/fall time t
R
/t
F
3 500 ms
Delay from ST to INSPEC or
OUTSPEC Active
t
SS
560 ms
Delay from Specification to
INSPEC or OUTSPEC Active
t
CS
560 ms
Temperature Conversion Time t
CONV
150 200 ms
INSPEC and OUTSPEC Active
Low Pulse Width
t
SL
62.5 ms
INSPEC and OUTSPEC High
Duration
t
SH
437.5 ms
ASYNCHRONOUS INTERFACE TIMING (-40 °C to +85°C; V
CC
=5.0V ±10%)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Date Rate f
BIT
9,408 9,600 9,792 bits/sec 2
Turnaround Time t
TURN
2/f
BIT
s
SYNCHRONOUS (3-WIRE) SERIAL
INTERFACE TIMING
(-40 °C to 85°C; V
CC
=5.0V ±10%)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Data to SCLK Setup t
DC
50 ns 3
SCLK to Data Hold t
CDH
70 ns 3
SCLK to Data Delay t
CDD
200 ns 3,4, 5
SCLK Low Time t
CL
250 ns 3
SCLK High Time t
CH
250 ns 3
SCLK Frequency t
CLK
DC MHz 3
SCLK Rise and Fall t
R
, t
F
2.0 ns
RST to SCLK Setup t
CC
1 500 µs 3
SCLK to RST Hold t
CCH
60 ns 3
RST Inactive Time t
CWH
1 µs 3
RST to I/O High Z t
CDZ
70 ns 3, 7
SCLK to I/O High Z t
CCZ
70 ns 3, 7
NOTES:
1. All voltages are referenced to ground,
2. The data rate f
BIT
is equal to 1/t
BIT
3. Measured with V
IH
= 3.0V or V
IL
= 0.0V and 10 ns maximum rise and fall time.
4. Measured at V
OH
=2.4V or V
OL
=0.4V.
5. Load Capacitance = 50 pF.
6. Thermometer error reflects temperature error as tested during calibration.
7. Sampled with 5 pF load. Not 100% tested.