DS1124U-25+ Maxim Integrated Products, DS1124U-25+ Datasheet - Page 8

• Manufacturer Part Number: DS1124U-25+
• Description: IC TIMING ELEMENT PROG 10-USOP
• Manufacturer: Maxim Integrated Products

Specifications of DS1124U-25+

• Number Of Taps/steps: 256
• Function: Programmable
• Delay To 1st Tap: 20nS
• Tap Increment: 0.25nS
• Available Total Delays: 83.75ns
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Propagation Delay Time: 25 ns
• Supply Voltage (min): 4.75 V
• Operating Temperature Range: - 40 C to + 85 C
• High Level Output Current: - 1 mA
• Interface: 3-Wire Serial
• Logic Type: CMOS, TTL
• Low Level Output Current: 8 mA
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Independent Delays: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Input:
Ambient Temperature:
Supply Voltage (V
Input Pulse:
Source Impedance:
Rise and Fall Times:
Pulse Width:
Period:
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.
5.0V 8-Bit Programmable
Timing Element
Figure 4. Examples Using the Serial Interface
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C) CASCADING MULTIPLE DS1124s ON A 3-WIRE BUS.
A) USING A FEEDBACK RESISTOR WITH AN I/O PIN FOR READING THE DS1124.
MICROPROCESSOR
MICROPROCESSOR
CC
OUTPUT
OUTPUT
OUTPUT
OUTPUT
):
I/O PIN
I/O PIN
25°C ±3°C
5.0V ±0.1V
High = 3.0V ±0.1V
Low = 0.0V ±0.1V
50Ω max
3.0ns max (measured between 0.6V and 2.4V)
250ns
10µs
Test Conditions
E
CLK
D
E
CLK
D
DS1124
DS1124
R
U1
FB
Q
Q
E
CLK
D
B) USING A SEPARATE INPUT PIN TO READ THE DS1124.
MICROPROCESSOR
DS1124
R
U2
FB
OUTPUT
OUTPUT
OUTPUT
INPUT
Q
E
CLK
D
E
CLK
D
DS1124
DS1124
U3
Q
Q