參數(shù)資料
型號(hào)： ICM7249
廠商： Intersil Corporation
英文描述： 51/2 Digit LCD, Micro-Power Event/Hour Meter
中文描述： 51 / 2數(shù)字液晶顯示，微功率事件/小時(shí)計(jì)
文件頁(yè)數(shù)： 1/9頁(yè)
文件大?。?/td> 49K
代理商： ICM7249
9-23
August 1997
ICM7249
5
1
/
2
Digit LCD,
Micro-Power Event/Hour Meter
Features
Hour Meter Requires Only 4 Parts Total
Micropower Operation: < 1
μ
A at 2.8V (Typ)
10 Year Operation On One Lithium Cell. 2
1
/
2
Year
Battery Life with Display Connected
Directly Drives 5
1
/
2
Digit LCD
14 Programmable Modes of Operation
Times Hrs., 0.1 Hrs., 0.01 Hrs., 0.1 Mins.
Counts 1’s, 10’s, 100’s, 1000’s
Dual Function Input Circuit
- Selectable Debounce for Counter
- High-Pass Filter for Timer
Direct AC Line Triggering with Input Resistor
Winking “Timer Active” Display Output
Display Test Feature
Applications
AC or DC Hour Meters
AC or DC Totalizers
Portable Battery Powered Equipment
Long Range Service Meters
Description
The ICM7249 Timer/Counter is intended for long-term
battery-supported industrial applications. The ICM7249
typically draws 1
μ
A during active timing or counting, due to
Intersil’ special low-power design techniques. This allows
more than 10 years of continuous operation without battery
replacement. The chip offers four timing modes, eight
counting modes and four test modes.
The ICM7249 is a 48 lead device, powered by a single DC
voltage source and controlled by a 32.768kHz quartz crystal.
No other external components are required. Inputs to the
chip are TTL-compatible and outputs drive standard direct
drive LCD segments.
Pinout
ICM7249
(PDIP)
TOP VIEW
Ordering Information
PART NUMBER
TEMP.
RANGE (
o
C)
PACKAGE
PKG.
NO.
ICM7249IPM
-20 to 85
48 Ld PDIP
E48.6
C1
C0
GND
OSC OUTPUT
OSC INPUT
V
DD
BP
W
a1
b1
c1
d1
e1
g1
f1
a2
b2
c2
d2
e2
DT
S/S
C3
C2
48
47
46
45
17
5
6
7
8
9
10
11
12
13
14
15
16
18
19
20
21
22
23
24
d5
c5
b5
a5
f4
g4
e4
d4
c4
b4
a4
f3
g3
e3
d3
c3
b3
a3
f2
g2
32
44
43
42
41
40
39
38
37
36
35
34
33
31
30
29
28
27
26
25
1
2
3
4
b6/c6
f5
g5
e5
File Number
3170.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
Intersil Corporation 1999
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ICM7249_01 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:5 1/2 Digit LCD, Micro-Power Event/Hour Meter
ICM7249D WAF 制造商:Harris Corporation 功能描述:
ICM7249IPM 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:51/2 Digit LCD, Micro-Power Event/Hour Meter
ICM724CBA 制造商:Harris Corporation 功能描述:
ICM7250 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:TIMERS COUNTERS AND DISPLAY DRIVERS
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