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Intersil Electronic Components Datasheet

ICM7242 Datasheet

Long Range Fixed Timer

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ICM7242 pdf
®
Data Sheet
February 9, 2007
ICM7242
FN2866.4
Long Range Fixed Timer
The ICM7242 is a CMOS timer/counter circuit consisting of
an RC oscillator followed by an 8-bit binary counter. It will
replace the 2242 in most applications, with a significant
reduction in the number of external components.
Three outputs are provided. They are the oscillator output,
and buffered outputs from the first and eighth counters.
Ordering Information
PART
TEMP.
PKG.
PART NUMBER MARKING RANGE (°C) PACKAGE DWG. #
ICM7242IPA 7242 IPA -25 to +85 8 Ld PDIP E8.3
ICM7242IPAZ 7242 IPAZ -25 to +85 8 Ld PDIP** E8.3
(See Note)
(Pb-free)
ICM7242CBAZ* 7242 CBAZ 0 to +70 8 Ld SOIC
(Pb-free)
M8.15
ICM7242IBAZ* 7242 IBAZ -25 to +85 8 Ld SOIC
(Pb-free)
M8.15
*Add “-T” suffix for tape and reel.
**Pb-free PDIPs can be used for through hole wave solder processing
only. They are not intended for use in Reflow solder processing
applications.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020
Features
• Replaces the 2242 in Most Applications
• Timing From Microseconds to Days
• Cascadable
• Monostable or Astable Operation
• Wide Supply Voltage Range . . . . . . . . . . . . . . . 2V to 16V
• Low Supply Current . . . . . . . . . . . . . . . . . . . . 115µA at 5V
• Pb-Free Plus Anneal Available (RoHS Compliant)
Pinout
ICM7242
(8 LD PDIP, SOIC)
TOP VIEW
VDD 1
÷2 OUT 2
÷128/256 OUT 3
VSS 4
8 TB I/O
7 RC
6 TRIGGER
5 RESET
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 1996, 2005, 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.



Intersil Electronic Components Datasheet

ICM7242 Datasheet

Long Range Fixed Timer

No Preview Available !

ICM7242 pdf
Functional Block Diagram
R1
50k
R2
86k
7
RC
R3
50k
+
-
+
R
SQ
-
RQ
ICM7242
Q
CL
Q
S
Q
CL
Q
S
Q
CL
Q
S
Q
CL
Q
S
Q
CL
Q
S
Q
CL
Q
S
Q
CL
Q
S
Q
CL
Q
S
1
VDD
4
VSS
8
TB I/O
5 623
RESET TRIGGER ÷2 OUT ÷128/256
OUTPUT
2 FN2866.4
February 9, 2007



Intersil Electronic Components Datasheet

ICM7242 Datasheet

Long Range Fixed Timer

No Preview Available !

ICM7242 pdf
ICM7242
Absolute Maximum Ratings
Thermal Information
Supply Voltage (VDD to VSS). . . . . . . . . . . . . . . . . . . . . . . . . . . .18V
Input Voltage (Note 1)
Terminals (Pins 5, 6, 7, 8). . . . . . . . . . (VSS -0.3V) to (VDD +0.3V)
Continuous Output Current (Each Output). . . . . . . . . . . . . . . . 50mA
Operating Conditions
Temperature Range
ICM7242I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-25°C to +85°C
ICM7242C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
Thermal Resistance (Typical, Note2)
θJA (°C/W)
PDIP Package* . . . . . . . . . . . . . . . . . . . . . . . . . . . .
100
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
160
Maximum Storage Temperature Range . . . . . . . . . -65°C to +150°C
Maximum Junction Temperature (Plastic Package) . . . . . . . +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
*Pb-free PDIPs can be used for through hole wave solder
processing only. They are not intended for use in Reflow solder
processing applications.
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1. Due to the SCR structure inherent in the CMOS process, connecting any terminal to voltages greater than VDD or less than VSS may cause
destructive device latchup. For this reason, it is recommended that no inputs from external sources not operating on the same supply be applied
to the device before its supply is established and, that in multiple supply systems, the supply to the ICM7242 be turned on first.
2. θJA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications VDD = 5V, TA = +25°C, R = 10kΩ, C = 0.1µF, VSS = 0V, Unless Otherwise Specified
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
Guaranteed Supply Voltage
Supply Current
VDD
IDD
Reset
Operating, R = 10kΩ, C = 0.1µF
2 - 16 V
- 125 -
µA
-
340 800
µA
Operating, R = 1MΩ, C = 0.1µF
-
220 600
µA
Timing Accuracy
TB Inhibited, RC Connected to VSS
- 225 -
-5-
µA
%
RC Oscillator Frequency Temperature
Drift
Δf/Δt Independent of RC Components
- 250 - ppm/°C
Time Base Output Voltage
Time Base Output Leakage Current
Trigger Input Voltage
Reset Input Voltage
Trigger/Reset Input Current
Max Count Toggle Rate
Output Saturation Voltage
Output Sourcing Current
MIN Timing Capacitor (Note 3)
Timing Resistor Range (Note 3)
NOTE:
3. For design only, not tested.
VOTB ISOURCE = 100µA
ISINK = 1.0mA
ITBLK RC = Ground
VTRIG VDD = 5V
VDD = 15V
VRST VDD = 5V
VDD = 15V
ITRIG, IRST
fT VDD = 2V
VDD = 5V
Counter/Divider Mode
VDD = 15V
50% Duty Cycle Input with Peak to Peak
Voltages Equal to VDD and VSS
VSAT
All Outputs Except TB Output VDD = 5V,
IOUT = 3.2mA
ISOURCE VDD = 5V Terminals 2 and 3, VOUT = 1V
CT
RT VDD = 2 - 16V
- 3.5 -
V
- 0.40 -
V
- - 25 µA
-
1.6 2.0
V
-
3.5 4.5
V
-
1.3 2.0
V
-
2.7 4.0
V
- 10 - µA
- 1 - MHz
2 6 - MHz
- 13 - MHz
- 0.22 0.4 V
- 300 -
µA
10 -
- pF
1k - 22M Ω
3 FN2866.4
February 9, 2007




Part Number ICM7242
Description Long Range Fixed Timer
Maker Intersil Corporation
Total Page 10 Pages
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