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Intersil Electronic Components Datasheet



ICM7242

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.



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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



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