DS1124 Datasheet, PDF (8/9 Pages) Maxim Integrated Products – 5.0V 8-Bit Programmable Timing Element

5.0V 8-Bit Programmable
Timing Element
MICROPROCESSOR
OUTPUT
OUTPUT
I/O PIN
E DS1124
CLK
D
Q
R_FB
A) USING A FEEDBACK RESISTOR WITH AN I/O PIN FOR READING THE DS1124.
MICROPROCESSOR
OUTPUT
OUTPUT
OUTPUT
INPUT
E DS1124
CLK
D
Q
B) USING A SEPARATE INPUT PIN TO READ THE DS1124.
MICROPROCESSOR
OUTPUT
OUTPUT
I/O PIN
E DS1124
U1
CLK
D
Q
E DS1124
U2
CLK
D
Q
E DS1124
U3
CLK
D
Q
R_FB
C) CASCADING MULTIPLE DS1124s ON A 3-WIRE BUS.
Figure 4. Examples Using the Serial Interface
Test Conditions
Input:
Ambient Temperature: 25°C ±3°C
Supply Voltage (V_CC): 5.0V ±0.1V
Input Pulse:
High = 3.0V ±0.1V
Low = 0.0V ±0.1V
Source Impedance: 50Ω max
Rise and Fall Times:
3.0ns max (measured
between 0.6V and 2.4V)
Pulse Width:
250ns
Period:
10µs
Output: The outputs are loaded with 15pF. Delay is
measured between the 1.5V level of the rising or falling
edge of the input signal and the corresponding edge of
the output signal.
Note: Above conditions are for test only and do not
restrict the operation of the device under other data
sheet conditions.
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