Red Lion SCUB2 8A Panel Meter Product Manual

Red Lion SCUB2 8A Panel Meter Product Manual
BULLETIN NO. SCUB2/8A-C (1)
DRAWING NO. LP0148
REVISED 3/97
RED LION CONTROLS
INTERNATIONAL HEADQUARTERS
RED LION CONTROLS (UK)
20 Willow Springs Circle, York, Pa. 17402, (717) 767-6511
Web site- http://www.redlion-controls.com
Tapton Park, Chesterfield, Derbyshire S41 OTZ
ENGLAND +44 1246 222122 FAX: +44 1246 221222
SUB-CUB2-8A - 8-DIGIT COMPONENT COUNTER
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SUB-CUB2-8A - 8-DIGIT COMPONENT COUNTER
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LSI COUNTER CHIP AND 0.30” (7.62 mm) HIGH LCD DISPLAY
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SOLDERLESS, ELASTOMERIC INTERCONNECTS
(Snap Mounts Directly Onto P.C. Board)
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LATCHABLE DISPLAY WITH SELECTABLE LEADING ZERO
BLANKING
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COUNT RATES TO 750 KHz
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LOW POWER, 40 µA AT 5 V (Typical)
* ACCESSORY HARDWARE AVAILABLE FOR PANEL MOUNTING SUB-CUB2-8A
DESCRIPTION
The SUB-CUB2-8A is a completely self-contained 8-digit LCD
counter/display module. The module can be treated as a component just like any
other I.C. The SUB-CUB2-8A can be used in simple high speed counting
applications as well as more complex applications such as frequency meters,
pulse width meters, etc.
Since it is a P.C. Board mounted component, the SUB-CUB2-8A is easily
integrated into applications where a readout of count, frequency, or time is
needed within a circuit enclosure. The SUB-CUB2-8A bezel and interface
board can be used to provide a convenient and economical panel mounted
display.
The SUB-CUB2-8A snap-mounts directly onto any 1/16” P.C. Board that has
been etched to provide a mating interconnect pad pattern and drilled for two
mounting holes and a polarizing “key” hole. Interconnections to the P.C. Board
as well as internal connections are made with elastomeric connectors that
provide an easy, corrosion-proof, and gas-tight interface for high reliability.
MOUNTING & DIMENSIONS
DIMENSIONS
Snap in mounting on the P.C. Board is facilitated by two, split, lock-ramp
pins which engage mounting holes drilled in the P.C. Board. The silicone rubber
elastomeric connectors compress to accommodate P.C. Board thickness
variations of ±0.005” (0.13 mm).
“In Inches (mm)”
P.C. BOARD LAYOUT
P.C. Board pads may
be gold or tin-lead
plated. Pad surface
must be flat without
excessive
tin-lead
build-up. (Layout view
is from the SUB-CUB28A mounting side of the
board.)
Pad area must be
clean and free of
contaminants so that
proper electrical contact
can be made.
Note: All hole size ±0.003” (0.08 mm)
All other tolerances ±0.005” (0.13 mm)
BLOCK DIAGRAM
DEVICE CONNECTIONS *
COUNT (C)- CMOS Schmidt Trigger input, counter increments on falling edge
of count pulse.
TEST (T) - CMOS level-sensitive. When the input is “HIGH”, the counter
operates normally. When pulled “LOW”, the carry input to each decade is
disconnected and tied to the count input so that all decades count in parallel to
provide rapid testing.
INHIBIT (I) - CMOS level-sensitive, a “LOW” level will prevent the counter
from accepting pulses at the “COUNT” input. A “HIGH” level will enable
the counter.
RESET (R) - CMOS level-sensitive, a “LOW” level will reset the counter to 0
(or to 00000000 if LZB is disabled). A “HIGH” level will allow the counter
to operate normally.
LATCH (L) - CMOS level-sensitive, a “HIGH” level will latch the data in the
display drivers while the counter registers can continue to update. A “LOW”
level will allow the display driver to update with the counter registers.
VSS - Common for D.C. Supply and Inputs.
LEADING ZERO BLANKING (LZB) - CMOS level-sensitive, a “LOW”
level will enable leading zero blanking. A “HIGH” level will display leading
zeros. LZB can only be changed at power up.
VDD - Positive side of D.C. Supply.
* All unused inputs must be tied to either VDD or VSS, whichever is appropriate.
CAUTION
The SUB-CUB2-8A contains CMOS circuitry and has the same
protection circuits as standard CMOS devices, to prevent damage to inputs
due to nominal over-voltage. This device requires special anti-static
handling to the same degree required by standard CMOS integrated
circuits. Units should be stored in the conductive packaging used to ship the
devices. Containers should be opened and the units handled only on a
conductive table top by personnel wearing wrist strap grounding
equipment.
MAXIMUM RATINGS (VOLTAGE REF. TO VSS)
RATING
DC Supply Voltage
Input Voltage, All Inputs
Operating Temperature
Storage Temperature
SYMBOL
VALUE
UNIT
VDD
VI
TA
TSTG
-0.5 to +6.5
-0.5 to (VDD +0.5)
-20 to +85
-20 to +85
VDC
VDC
°C
°C
ELECTRICAL CHARACTERISTICS VDD = 5 V ±10% @ 25oC UNLESS OTHERWISE SPECIFIED
SYMBOL
VDD
IDD
IDDQ
VIH
VIL
VIH
VIL
IIL
FC
TR
TL
PARAMETER
MIN.
TYP.
MAX.
UNIT
TEST CONDITION
4.5
5V
50
40
2.9
1.3
1.9
1.9
0.1
5.5
100
100
VDC
µA
µA
VDC
VDC
VDC
VDC
µA
FC =10 KHz
Not Counting
Count, Reset & Latch Input Only
Count, Reset & Latch Input Only
Test, Inhibit, & LZB Input Only
Test, Inhibit, & LZB Input Only
50% Duty Cycle
Supply Voltage
Supply Current
Quiescent Current
Input Voltage - High
Input Voltage - Low
Input Voltage - High
Input Voltage - Low
Input Leakage Current
Count Frequency
(50% Duty Cycle)
Reset Pulse Width
Latch Pulse Width
3.5
3.0
1.0
1.0
1.0
750
1000
KHz
10
10
0.5
0.5
µS
µS
ORDERING INFORMATION
MODEL NO.
DESCRIPTION
PART NUMBER
SCUB28A
SUB-CUB2-8A Display/Counter Module
SCUB28A0
HWK 28
*Panel Bezel Kit with P.C. Board & Cable
HWK28000
HWK 3
*Panel Bezel Kit w/o P.C. Board & Cable
HWK30000
* - Does not include SUB-CUB2-8A Display/Counter Module (Order SUB-CUB2-8A Separately).
PANEL BEZEL KIT FOR THE SUB-CUB2-8A (P/N HWK28000)
This kit provides a convenient way to adapt the SUB-CUB2-8A for panel mounting. The kit
includes the black bezel, the panel and internal window gaskets, P.C. Board, 12” ribbon cable and
mounting screws.
ASSEMBLY
DIMENSIONS & PANEL CUT-OUT “In inches (mm)
PANEL CUT-OUT FRONT VIEW
EIGHT-DIGIT TOTALIZER
This circuit is used to totalize the number of relay
contact closures for the purpose of determining the
operating life of a relay.
The relay is energized by a pulsed external voltage.
The normally open contact of the relay is connected to
the signal input of the circuit. The resistors R1 and R2,
along with C1, provide filtering to prevent contact
bounce from registering false counts. The SUBCUB2-8A can be cleared by pressing the “RESET”
button. Note that all unused inputs are tied to either
“VSS” or “VDD”, whichever is appropriate.
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