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Intersil Electronic Components Datasheet

ICM7216D Datasheet

(ICM7216x) 8-Digit / Multi-Function / Frequency Counters/Timers

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ICM7216D pdf
August 1997
ICM7216A, ICM7216B,
ICM7216D
8-Digit, Multi-Function,
Frequency Counters/Timers
Features All Versions
Description
• 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 Multi-
plexed 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 0.5µs to 10s
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 0.1µs
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.
Features ICM7216D
• Decimal Point and Leading Zero Banking May Be
Externally Selected.
Ordering Information
TEMP.
PART NUMBER RANGE (oC)
PACKAGE
ICM7216AlJl
-25 to 85 28 Ld CERDIP
PKG.
NO.
F28.6
All versions of the ICM7216 incorporate leading zero
blanking. Frequency is displayed in kHz. In the ICM7216A
and ICM7216B, time is displayed in µs. 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.
ICM7216BlPl
-25 to 85 28 Ld PDIP
E28.6
ICM7216DlPl
-25 to 85 28 Ld PDIP
E28.6
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
9-10
File Number 3166.1



Intersil Electronic Components Datasheet

ICM7216D Datasheet

(ICM7216x) 8-Digit / Multi-Function / Frequency Counters/Timers

No Preview Available !

ICM7216D pdf
Pinouts
ICM7216A, ICM7216B, ICM7216D
ICM7216A
COMMON ANODE
(CERDIP)
TOP VIEW
ICM7216B
COMMON CATHODE
(PDIP)
TOP VIEW
CONTROL INPUT 1
INPUT B 2
FUNCTION INPUT
DECIMAL POINT
OUTPUT
SEG e OUTPUT
3
4
5
SEG g OUTPUT 6
SEG a OUTPUT 7
VSS 8
SEG d OUTPUT 9
SEG b OUTPUT 10
SEG c OUTPUT 11
SEG f OUTPUT 12
RESET INPUT 13
RANGE INPUT 14
28 INPUT A
27 HOLD INPUT
26 OSC OUTPUT
25 OSC INPUT
24 EXT OSC INPUT
23 DIGIT 1 OUTPUT
22 DIGIT 2 OUTPUT
21 DIGIT 3 OUTPUT
20 DIGIT 4 OUTPUT
19 DIGIT 5 OUTPUT
18 VDD
17 DIGIT 6 OUTPUT
16 DIGIT 7 OUTPUT
15 DIGIT 8 OUTPUT
CONTROL INPUT 1
INPUT B 2
FUNCTION INPUT 3
DIGIT 1 OUTPUT 4
DIGIT 3 OUTPUT 5
DIGIT 2 OUTPUT 6
DIGIT 4 OUTPUT 7
VSS 8
DIGIT 5 OUTPUT 9
DIGIT 6 OUTPUT 10
DIGIT 7 OUTPUT 11
DIGIT 8 OUTPUT 12
RESET INPUT 13
RANGE INPUT 14
28 INPUT A
27 HOLD INPUT
26 OSC OUTPUT
25 OSC INPUT
24 EXT OSC INPUT
23
DECIMAL POINT
OUTPUT
22 SEG g OUTPUT
21 SEG e OUTPUT
20 SEG a OUTPUT
19 SEG d OUTPUT
18 VDD
17 SEG b OUTPUT
16 SEG c OUTPUT
15 SEG f OUTPUT
ICM7216D
COMMON CATHODE
(PDIP)
TOP VIEW
CONTROL INPUT 1
MEASUREMENT IN PROGRESS 2
DIGIT 1 OUTPUT 3
DIGIT 3 OUTPUT 4
DIGIT 2 OUTPUT 5
DIGIT 4 OUTPUT 6
VSS 7
DIGIT 5 OUTPUT 8
DIGIT 6 OUTPUT 9
DIGIT 7 OUTPUT 10
DIGIT 8 OUTPUT 11
RESET INPUT 12
EX. DECIMAL POINT INPUT 13
RANGE INPUT 14
28 INPUT A
27 HOLD INPUT
26 OSC OUTPUT
25 OSC INPUT
24 EXT OSC INPUT
23 DECIMAL POINT OUTPUT
22 SEG g OUTPUT
21 SEG e OUTPUT
20 SEG a OUTPUT
19 SEG d OUTPUT
18 VDD
17 SEG b OUTPUT
16 SEG c OUTPUT
15 SEG f OUTPUT
9-11



Intersil Electronic Components Datasheet

ICM7216D Datasheet

(ICM7216x) 8-Digit / Multi-Function / Frequency Counters/Timers

No Preview Available !

ICM7216D pdf
ICM7216A, ICM7216B, ICM7216D
Functional Block Diagram
EXT
OSC
INPUT
OSC
INPUT
OSC
OUTPUT
OSC
SELECT
3
REFERENCE
COUNTER
÷ 103
8
DECODER
DIGIT
DRIVERS
8
DIGIT
OUTPUTS
(8)
RESET
INPUT
INPUT A
INPUT B
(NOTE 1)
INPUT
CONTROL
LOGIC
INPUT
CONTROL
LOGIC
÷ ÷104 OR 105 100Hz
RANGE SELECT
LOGIC
STORE AND
RESET LOGIC
RANGE
CONTROL
LOGIC
RANGE
INPUT
5
÷EN 103MCAOIUNNTER
CL OVERFLOW
4 444 44 44
DATA LATCHES AND
OUTPUT MUX
STORE
Q
D
CL
MAIN
FF
CONTROL
6 LOGIC
CONTROL
INPUT
DP
LOGIC
EXT
DP
INPUT
(NOTE 2)
DECODER
SEGMENT
4 LOGIC 7 DRIVER 8
SEGMENT
OUTPUTS
(8)
MEASUREMENT
IN PROGRESS
OUTPUT
(NOTE 2)
FUNCTION
INPUT
(NOTE 1)
FN
CONTROL
LOGIC
HOLD
INPUT
6
NOTES:
1. Function input and input B available on ICM7216A/B only.
2. Ext DP input and MEASUREMENT IN PROGRESS output available on ICM7216D only.
9-12




Part Number ICM7216D
Description (ICM7216x) 8-Digit / Multi-Function / Frequency Counters/Timers
Maker Intersil Corporation
Total Page 17 Pages
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Related Datasheet

1 ICM7216A (ICM7216x) 8-Digit / Multi-Function / Frequency Counters/Timers Intersil Corporation
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ICM7216A pdf
2 ICM7216B (ICM7216x) 8-Digit / Multi-Function / Frequency Counters/Timers Intersil Corporation
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ICM7216B pdf
3 ICM7216D (ICM7216x) 8-Digit / Multi-Function / Frequency Counters/Timers Intersil Corporation
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ICM7216D pdf




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