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ICM7224 Datasheet(PDF) 4 Page - Intersil Corporation

Part # ICM7224
Description  41/2 Digit LCD Display Counter
Download  7 Pages
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ICM7224 Datasheet(HTML) 4 Page - Intersil Corporation

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4
Typical Performance Curves
FIGURE 2. OPERATING SUPPLY CURRENT AS A FUNCTION
OF SUPPLY VOLTAGE
FIGURE 3. BACKPLANE FREQUENCY AS A FUNCTION OF
OSCILLATOR CAPACITOR COSC
FIGURE 4. MAXIMUM COUNT FREQUENCY (TYPICAL) AS A
FUNCTION OF SUPPLY VOLTAGE
FIGURE 5. SUPPLY CURRENT AS A FUNCTION OF COUNT
FREQUENCY
12
3
4
5
6
7
SUPPLY VOLTAGE (V)
30
25
20
15
10
5
0
LCD DEVICES, TEST CIRCUIT
DISPLAY BLANK
PIN 36 OPEN
TA = -20oC
TA = 25oC
TA = 70oC
LCD DEVICES
TA = 25oC
VSUPPLY = 5V
VSUPPLY = 6V
VSUPPLY = 3V
VSUPPLY = 4V
COSC (pF)
1
10
100
1000
1000
100
10
1
45
TA = -20oC
TA = 25oC
TA = 70oC
SINE WAVE INPUT
SWINGING FULL SUPPLY
40
35
30
25
20
15
45
6
SUPPLY VOLTAGE (V)
10
1
0.1
0.01
1kHz
10kHz
100kHz
1MHz
10MHz
100MHz
ƒCOUNT
V+ = 5V
TA = 25oC
TABLE 1. CONTROL INPUT DEFINITIONS
TERMINAL
INPUT
VOLTAGE
FUNCTION
29
Leading Zero Blanking
VDD or Floating
Leading Zero Blanking Enabled
INput
VSS
Leading Zeroes Displayed
31
COUNT INHIBIT
VDD or Floating
Counter Enabled
VSS
Counter Disabled
33
RESET
VDD or Floating
Inactive
VSS
Counter Reset to 0000
34
STORE
VDD or Floating
Output Latches not Updated
VSS
Output Latches Updated
ICM7224


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