DS1802E/TR View Datasheet(PDF) - Maxim Integrated
Part Name
Description
MFG CO.
DS1802E/TR Datasheet PDF : 17 Pages
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AC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL MIN
CLK Frequency
fCLK
DC
Width of CLK Pulse
tCH
50
Data Setup Time
tDC
30
Data Hold Time
tCDH
10
Propagation Delay Time
tPLH
Low to High Level
Clock to Output
Propagation Delay Time
tPLH
Low to High Level
RST High to Clock Input High
tCC
50
RST Low to Clock Input High
tHLT
50
CLK Rise Time
tCR
RST Inactive
tRLT
200
DS1802
(0°C to 70°C; VCC=2.7V to 5.5V)
TYP MAX UNITS NOTES
10
MHz 10,13
ns
10,13
ns
10,13
ns
10,13
50
ns
10,13
50
ns
10,13
ns
10,13
ns
10,13
50
ns
10,13
ns
10,13
AC ELECTRICAL CHARACTERISTICS (PUSHBUTTON INPUTS)
(0°C to 70°C; VCC=2.7V to 5.5V)
PARAMETER
SYMBOL MIN TYP MAX UNITS NOTES
Single Pulse Input
tCPW
1
DC
ms
3,5,13
Repetitive Input Pulse High Time
tHPW
1
DC
ms
3,5,13
Continuous Input Pulse
tCCP
1
DC
s
3,5,13
NOTES:
1. All voltages are referenced to ground.
2. Valid for VCC =5V only.
3. Both UCx and DCx inputs are internally pulled up with a 50KΩ resistance.
4. Capacitance values apply at 25°C.
5. Input pulse width is the minimum time required for an input to cause an increment or decrement. If
the UCx or DCx inputs is held active for longer than 1 second, subsequent increments or decrements
will occur on 100 ms intervals until the inputs UCx, DCx are released to VIH. Timing tolerances for
pushbutton control is ±30%.
6. Inter-channel matching is used to determine the relative voltage difference in dB between the same
tap position on each potentiometer. The DS1802 is specified for ±0.5 dB inter-channel matching.
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