ICM7242CBA INTERSIL [Intersil Corporation], ICM7242CBA Datasheet

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ICM7242CBA

Manufacturer Part Number
ICM7242CBA
Description
Long Range Fixed Timer
Manufacturer
INTERSIL [Intersil Corporation]
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ICM7242CBAZ
Manufacturer:
Intersil
Quantity:
392
Part Number:
ICM7242CBAZ
Manufacturer:
INTERSIL
Quantity:
20 000
November 1996
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
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. . . . . . . . . . . . . . . . . . . 115 A at 5V
Ordering Information
Functional Diagram
ICM7242IPA
ICM7242CBA
(7242CBA)
RC
7
PART NUMBER
V
1
DD
(BRAND)
50K
86K
50K
R
R
R
1
2
3
RANGE (
V
4
SS
-25 to 85
TEMP.
0 to 70
+
-
+
-
o
C)
8 Ld PDIP
8 Ld SOIC
PACKAGE
S
R
R
Q
Q
E8.3
M8.15
PKG.
NO.
TB I/O
8-163
8
Description
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.
Pinout
128/256 OUT
CL
S
Q
Q
2 OUT
V
V
DD
SS
CL
ICM7242
CL
1
2
3
4
S
Long Range Fixed Timer
S
Q
Q
Q
Q
(PDIP, SOIC)
TOP VIEW
ICM7242
RESET
CL
CL
5
S
S
Q
Q
Q
Q
TRIGGER
8
7
6
5
CL
File Number
CL
6
TB I/O
RC
TRIGGER
RESET
S
S
Q
Q
Q
Q
2 OUT
2
CL
S
Q
Q
OUTPUT
128/256
2866.2
3

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ICM7242CBA Summary of contents

Page 1

... Cascadable • Monostable or Astable Operation • Wide Supply Voltage Range . . . . . . . . . . . . . . 2V to 16V • Low Supply Current 115 Ordering Information PART NUMBER TEMP. o (BRAND) RANGE ( C) ICM7242IPA - PDIP ICM7242CBA SOIC (7242CBA) Functional Diagram R 1 50K + - R 2 86K + ...

Page 2

Absolute Maximum Ratings Supply Voltage ( 18V DD SS Input ...

Page 3

Test Circuit (RC/2) OUTPUT 8 2 (RC/256) OUTPUT NOTE and 2 outputs are inverters and have active pullups. Application Information Operating Considerations Shorting the RC terminal or output terminals to V exceed ...

Page 4

To use the 8-bit counter without the timebase, Terminal 7 (RC) should be connected to ground and the outputs taken from Terminals 2 and 3. The ICM7242 may be used for a very low frequency square wave reference. For this ...

Page 5

(NOTE) C TRIGGER ICM7242 50K 33K A 5 100pF PUSH S TO START SEQUENCE: 1 MUST BE SHORTER THAN “ON TIME TRIGGER 128RC OUTPUT A (NOTE) OUTPUT B (NOTE) OUTPUT C ...

Page 6

Typical Performance Curves 260 240 220 T = -20 A 200 180 160 140 120 100 SUPPLY VOLTAGE (V) FIGURE 7. SUPPLY CURRENT vs SUPPLY VOLTAGE 10,000 1,000 10k 100 ...

Page 7

Typical Performance Curves + 15V + - TEMPERATURE ( FIGURE 13. NORMALIZED FREQUENCY STABILITY IN THE ASTABLE MODE vs TEMPERATURE 100 ...

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