ds1124 Maxim Integrated Products, Inc., ds1124 Datasheet - Page 3

• Manufacturer Part Number: ds1124
• Description: Ds1124 5.0v 8-bit Programmable Timing Element
• Manufacturer: Maxim Integrated Products, Inc.

AC ELECTRICAL CHARACTERISTICS (continued)
(V
Note 1: All voltages are referenced to ground.
Note 2: Measured from rising edge of the input to the rising edge of the output. The programmed delay, t
Note 3: See the Integral Nonlinearity section and Figure 6.
Note 4: This is the minimum allowable interval between transitions on the input to ensure accurate device operation. This parameter
Note 5: When a 50% duty cycle input clock is used, this defines the highest usable clock frequency. When asymmetrical clock
Note 6: Faster rise and fall times give the greatest accuracy in measured delay. Slow edges (outside the specification maximum)
Figure 1. Delay Timing Diagram
E to Delay Valid
E to Delay Invalid
Power-Up Time
Delay Step Size
Step 0 Delay
Step 0 Delay Initial Accuracy
Step 0 Voltage Variation
Step 0 Temperature Variation
Step 0 Temperature Variation
Step 255 Delay
Step 255 Delay Initial Accuracy
Step 255 Voltage Variation
Step 255 Temperature Variation
Step 255 Temperature Variation
Integral Nonlinearity
(Deviation from Straight Line)
Minimum Input Pulse Width
Minimum Input Period
Input Rise and Fall Times
CC
= +4.75V to +5.25V, T
with values from 0 to 255. See Figure 1.
can be violated but timing accuracy may be impaired and ultimately very narrow pulse widths will result in no output from
the device. See Figure 1.
inputs are used, the maximum usable clock frequency must be reduced to conform to the minimum input pulse-width
requirement. See Figure 1.
can result in erratic operations.
TIMING REFERENCED TO 1.5V.
PARAMETER
IN
_______________________________________________________________________________________
DS1124
A
= -40°C to +85°C, unless otherwise noted.)
OUT
OUT
IN
SYMBOL
t
T
t
t
t
t
t
STEP
T
R
t
D255
ERR
EDV
EDX
t
PER
PU
WI
D0
, t
F
t
D0
T
(Note 2)
V
0°C to +70°C
-40°C to +85°C
(Note 2)
V
0°C to +70°C
-40°C to +85°C
T
(Note 4)
(Note 5)
(Note 6)
A
A
CC
CC
= +25°C
= +25°C (Note 3)
= 5V, T
= 5V, T
t
WI
5.0V 8-Bit Programmable
A
A
t
D
CONDITIONS
= +25°C
= +25°C
t
D0
t
Timing Element
D
t
WI
-0.75
MIN
-0.6
-0.4
-0.6
-0.4
17
77
40
80
-1
-1
-2
-3
-5
0
0
+0.25
83.75
TYP
20
0
D
, can be programmed
MAX
+0.6
+0.4
+0.6
+0.4
100
+1
+1
+1
+2
50
23
88
+3
+5
1
UNITS
ms
μs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
3