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ICM7216D IC产品库存

ICM7216D:8-Digit, Multi-Function,Frequency Counters/Timers
库存编号:
6987
产品型号:
ICM7216D
厂商:
Intersil
封装:
DIP-28
库存数量:
1050
参考价:
100.00
起订量:
100
点击率:
1215
PDF搜索:
下载
立即订购:
ICM7216D
联系电话:
0755-82516777

ICM7216D 产品描述

8-Digit, Multi-Function,Frequency Counters/Timers

ICM7216D 产品简介

8-Digit, Multi-Function,Frequency Counters/Timers
Features All Versions
• Functions as a Frequency Counter (DC to 10MHz)
• Four Internal Gate Times: 0.01s, 0.1s, 1s, 10s in
Frequency Counter Mode
• Directly Drives Digits and Segments of Large Multiplexed
LED Displays (Common Anode and Common
Cathode Versions)
• Single Nominal 5V Supply Required
• Highly Stable Oscillator, Uses 1MHz or 10MHz Crystal
• Internally Generated Decimal Points, Interdigit Blanking,
Leading Zero Blanking and Overflow Indication
• Display Off Mode Turns Off Display and Puts Chip Into
Low Power Mode
• Hold and Reset Inputs for Additional Flexibility
Features ICM7216A and ICM7216B
• Functions Also as a Period Counter, Unit Counter,
Frequency Ratio Counter or Time Interval Counter
• 1 Cycle, 10 Cycles, 100 Cycles, 1000 Cycles in Period,
Frequency Ratio and Time Interval Modes
• Measures Period From 0.5ms to 10s
Features ICM7216D
• Decimal Point and Leading Zero Banking May Be
Externally Selected.
Description
The ICM7216A and ICM7216B are 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 ICM7216A and ICM7216B can function as a frequency
counter, period counter, frequency ratio (fA/fB) 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 0.1ms
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 ICM7216A
and ICM7216B, time is displayed in ms. The display is
multiplexed at 500Hz with a 12.2% duty cycle for each digit.
The ICM7216A is designed for common anode displays with
typical peak segment currents of 25mA. 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.
Ordering Information>

ICM7216D 产品图片

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ICM7216D 论坛相关



联系方式

联系时间:每周一至周五
   上午9.00至11:45,
   下午13:30至17.50
联系电话:
   0755-82516668,82516777
联系传真:
   0755-82518701
业务联系QQ:
   QQ一:882222 ,QQ二:308917
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