ICM7216DIPI Intersil, ICM7216DIPI Datasheet

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ICM7216DIPI

Manufacturer Part Number
ICM7216DIPI
Description
IC COUNTER/TIMER FREQ 8DIG 28DIP
Manufacturer
Intersil
Datasheet

Specifications of ICM7216DIPI

Rohs Status
RoHS non-compliant
Other names
7216DIPI
NT5007

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Part Number:
ICM7216DIPI
Manufacturer:
INTERSIL
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8-Digit, Multi-Function, Frequency
Counters/Timers
The ICM7216B is a fully integrated Timer Counters with LED
display drivers. They combine a high frequency oscillator, a
decade timebase counter, an 8-decade data counter and
latches, a 7-segment decoder, digit multiplexers and 8-
segment and 8-digit drivers which directly drive large
multiplexed LED displays. The counter inputs have a
maximum frequency of 10MHz in frequency and unit counter
modes and 2MHz in the other modes. Both inputs are digital
inputs. In many applications, amplification and level shifting
will be required to obtain proper digital signals for these
inputs.
The ICM7216B can function as a frequency counter, period
counter, frequency ratio (f A /f B ) counter, time interval
counter or as a totalizing counter. The counter uses either a
10MHz or 1MHz quartz crystal timebase. For period and
time interval, the 10MHz timebase gives a 0.1µs resolution.
In period average and time interval average, the resolution
can be in the nanosecond range. In the frequency mode, the
user can select accumulation times of 0.01s, 0.1s, 1s and
10s. With a 10s accumulation time, the frequency can be
displayed to a resolution of 0.1Hz in the least significant
digit. There is 0.2s between measurements in all ranges.
The ICM7216D functions as a frequency counter only, as
described above.
All versions of the ICM7216 incorporate leading zero
blanking. Frequency is displayed in kHz. In the ICM7216B,
time is displayed in µs. The display is multiplexed at 500Hz
with a 12.2% duty cycle for each digit. The ICM7216B and
ICM7216D are designed for common cathode displays with
typical peak segment currents of 12mA. In the display off
mode, both digit and segment drivers are turned off,
enabling the display to be used for other functions.
Part Number Information
ICM7216BlPl
ICM7216DlPl
NUMBER
PART
TEMP. RANGE
-25 to 85
-25 to 85
(
o
C)
®
1
28 Ld PDIP
28 Ld PDIP
Data Sheet
PACKAGE
E28.6
E28.6
PKG. NO.
1-888-INTERSIL or 321-724-7143
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features, All Versions
• Functions as a frequency counter (DC to 10MHz)
• Four internal gate times: 0.01s, 0.1s, 1s, 10s in frequency
• Directly drives digits and segments of large multiplexed
• Single nominal 5V supply required
• Highly stable oscillator, uses 1MHz or 10MHz crystal
• Internally generated decimal points, interdigit blanking,
• Display off mode turns off display and puts chip into low
• Hold and reset inputs for additional flexibility
Features, ICM7216B
• Functions also as a period counter, unit counter,
• 1 cycle, 10 cycles, 100 cycles, 1000 cycles in period,
• Measures period from 0.5µs to 10s
Features, ICM7216D
• Decimal point and leading zero banking may be externally
counter mode
LED displays (common anode and common cathode
versions)
leading zero blanking and overflow indication
power mode
frequency ratio counter or time interval counter
frequency ratio and time interval modes
selected
All other trademarks mentioned are the property of their respective owners.
January 2004
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
ICM7216B, ICM7216D
Copyright © Intersil Americas Inc. 2004. All Rights Reserved
FN3166.4

ICM7216DIPI Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 321-724-7143 Intersil (and design registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2004. All Rights Reserved All other trademarks mentioned are the property of their respective owners. FN3166.4 ...

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Pinouts MEASUREMENT IN PROGRESS EX. DECIMAL POINT INPUT 2 ICM7216B, ICM7216D ICM7216B (PDIP) COMMON CATHODE TOP VIEW CONTROL INPUT 1 28 INPUT FUNCTION INPUT DIGIT 1 OUTPUT 4 DIGIT 3 OUTPUT 5 24 DIGIT ...

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Functional Block Diagram EXT OSC INPUT OSC OSC SELECT INPUT OSC OUTPUT RESET INPUT INPUT INPUT A CONTROL LOGIC INPUT B (NOTE 1) INPUT CONTROL LOGIC FUNCTION INPUT FN (NOTE 1) CONTROL LOGIC 6 HOLD INPUT NOTES: 1. Function input ...

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Absolute Maximum Ratings Maximum Supply Voltage ( 6. Maximum Digit Output Current . . . . . ...

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Electrical Specifications V = 5.0V PARAMETER Input Low Voltage, V INL Input High Voltage, V lNH Input Resistance ICM7216D Operating Supply Current Supply Voltage Range ( ...

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Timing Diagram INTERNAL STORE 30ms TO 40ms INTERNAL RESET UPDATE 190ms TO 200ms MEASUREMENT IN PROGRESS (INTERNAL ON 7216B) INPUT A INPUT B NOTE range is set to 1 event, first and last measured interval will coincide. FIGURE ...

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Typical Performance Curves 200 150 100 (V) OUT FIGURE 4. TYPICAL I DIGIT Description INPUTS A and B INPUTS A and B are digital inputs with a typical switching threshold of ...

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INPUT A 0.5V 50ns MIN FIGURE 6. WAVEFORM FOR GUARANTEED MINIMUM f (MAX) FUNCTION = FREQUENCY, A FREQUENCY RATIO, UNIT COUNTER 9. MEASURED INTERVAL 4.5V INPUT A OR INPUT B 0.5V 250ns MIN FIGURE 7. WAVEFORM FOR GUARANTEED MINIMUM ...

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Frequency - In this mode input A is counted by the Main Counter for a precise period of time. This time is determined by the time base oscillator and the selected range. For the 10MHz (or 1MHz) time base, the ...

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DP INPUT). Digit 8 should not be used since it will override the overflow output. Leading zero blanking is effective for the digits to the left of selected decimal point. Hold Input Except in the unit counter mode, ...

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SIGNAL A SIGNAL PRIME N.O. 150K 1N914 100K 0.1µ DEVICE TYPE 1 CD4049B Inverting Buffer 2 CD4070B Exclusive - OR FIGURE 10. PRIMING CIRCUIT, SIGNALS A AND B ...

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In addition, there is a quantization error inherent in any digital measurement of ±1 count. Clearly this error is reduced by displaying more digits. In the frequency mode the maximum accuracy is obtained with high frequency inputs and in period ...

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Test Circuit FUNCTION GENERATOR FUNCTION GENERATOR 1 INPUT FUNCTION 10K ...

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INPUT A 1 INPUT 10kΩ FUNCTION 0.1µ ...

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INPUT 74LS112 74LS112 10kΩ 100pF ...

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INPUT B INPUT A 100pF CK1 CK2 CK1 CK2 74LS90 OR 11C90 11C90 3kΩ ICM7216A 0.1µ ...

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INPUT A 11C90 CK1 CK2 QA OC 74LS00 V DD 3kΩ 100pF 10kΩ FUNCTION SWITCH + OPEN: FREQ CLOSED: PERIOD 0.1µ ...

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... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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