Bulletin No. SUB2-D
Drawing No. LP0777
Released 12/13
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
SUB-CUB 1/2 - COMPLETE 6-DIGIT COMPONENT COUNTERS
APPLICATIONS INCLUDE:
VENDING MACHINES
VIDEO GAMES
COMPUTERS
UTILITY METERS
OFFICE COPIERS
P.C.’S
FLOW METERS
TEST EQUIPMENT
DISPENSING EQUIP.
MACHINE CONTROLS
MEDICAL EQUIPMENT
PORTABLE INSTRUMENTS
- LSI COUNTER CHIP WITH LCD DISPLAY
- SNAP MOUNTS DIRECTLY ON P.C. BOARD
SUB-CUB 1 - 0.2" (5 mm) HIGH DISPLAY
SUB-CUB 2 - 0.35" (8.9 mm) HIGH DISPLAY
SOLDERLESS, ELASTOMERIC INTERCONNECTS
5 V: SUB-CUB 1 AND 2
3.3 V: SUB-CUB 1 ONLY
ULTRA-LOW POWER
LATCHABLE DISPLAY WITH LEADING ZERO BLANKING
COUNT RATES TO 10 KHz
REGISTER, STATUS & USAGE COUNTING
FREQUENCY, EPUT, & RPM INDICATION
TIMER, PULSE-WIDTH & PERIOD READOUT
IDEAL IN APPLICATIONS FOR:
*
ACCESSORY HARDWARE AVAILABLE FOR PANEL MOUNTING SUB-CUB 2
DESCRIPTION
As a completely self-contained counter/display module, SCUB1/SCUB2 (5 V)
and SCUB1LV (3.3 V) can be treated like an I.C. The module contains a custom
counter/driver chip that performs all the counting functions together with a
6-digit LCD readout. The latchable display with the separate reset function
permits the module to be used as frequency or rate meter, timer, phase-angle or
pulse width indicator and for other complex readout requirements in addition to
simple high speed counting.
The module is ideal for internal
“on-board”
applications where a readout of
count, frequency, time, etc. is needed within a circuit enclosure for
maintenance, diagnostic, tune-up, or other data readout requirements. The SUB-
CUB 2, with its larger display, can also be mounted with the convenient bezel
kit to provide a very flexible and econmical panel instrument.
SUB-CUBs snap-mount directly on any 1/16" P.C. board that has been etched
to provide a mating interconnect pad pattern with 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 corrosion-proof,
gas tight, interface contacts for high reliability.
MOUNTING & 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 variation
of ±0.005"
(0.13 mm).
ELASTOMERIC
CONNECTOR
STRIP
DIMENSIONS
In Inches (mm)
SUB-CUB1
P.C
.
BO
AR
D
SUB-CUB2
P.C
.
1.040
(26)
BO
21
AR
26
D
1.880
(47.7)
74
.470 (11.9)*
(ABOVE P.C. BD.)
.670
(17)
21
1.045
(26.6)
26
.065
PC BOARD
LOCK-RAMP PINS
.062±.005
74
.393 (10)*
(ABOVE P.C. BD.)
* BASED ON P.C.
BOARD THICKNESS
OF .062 (1.6)
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 views are from SUB-CUB
mounting side of board.)
.854 (21.7)
.080 (2.0)
.427 (10.8)
.093 (2.5) DIAM.
POLARIZING HOLE
Note: All hole size tolerances ±0.003" (0.08 mm)
All other tolerances ±0.005" (0.13 mm)
1.360 (34.5)
.080 (2.0)
.680 (17.3)
.093 (2.5) DIAM.
POLARIZING HOLE
.165 (4.2)
.095
(2.4)
.095
(2.4)
.080 (2.0)
.080 (2.0)
.165 (4.2)
.095
(2.4)
.095
(2.4)
Vss
.20 (5.1)
.225
(5.7)
N.C.
CENTER POINT
OF MODULE
.105 (2.7)
.0325 (.83)
V
SS
.20 (5.1)
.475
(12.5)
CENTER POINT
OF MODULE
N.C.
.105 (2.7)
.0325 (.83)
L
.105 (2.7)
.0325 (.83)
.12
(3)
C
.45 (11.4)
.0175
(.44)
.12
(3)
L
.105 (2.7)
.0325 (.83)
C
.0175
(.44)
T
.105 (2.7)
.0325 (.83)
T
.105 (2.7)
.0325 (.83)
.165 (4.2)
V
DD
.120 (3) DIA. MOUNTING
HOLE, 2- PLCS.
.165 (4.2)
V
DD
.950 (24.1)
.120 (3) DIA. MOUNTING
HOLE, 2- PLCS.
R
.105 (2.7)
R
.105 (2.7)
SCUB1/SCUB1LV
1
SCUB2
DEVICE CONNECTIONS
*
COUNT (C)
- CMOS, Schmidt Trigger; counter increments on negative going
transition.
RESET (R)
- CMOS, Schmidt Trigger; counter is reset to zero when input is
low. Counter should always be reset to zero whenever power is first applied
to the unit.
LATCH (L)
- CMOS, Schmidt Trigger; when pulled low, the latches are
transparent and display is updated as new counts are received. When latch
input is pulled high, the display registers count existing immediately prior to
activating the latch.
TEST (T)
- CMOS, Schmidt Trigger; Input must be connected to V
DD
. This
input is used by manufacturer during factory testing.
V
DD
- +VDC Supply.
V
SS
- Common for D.C. Supply and Inputs.
* All unused inputs must be tied to either V
DD
or V
SS
, whichever is appropriate.
BLOCK DIAGRAM
V
DD
+V
TEST
T
RESET
R
COUNT
C
COUNT PULSES
LATCH
L
LATCH &
MULTIPLEX
LOGIC
LATCH
DIG.6 DIG.5 DIG.4 DIG.3 DIG.2 DIG.1
(MSD)
(LSD)
COUNTER
MULTIPLEXER
BCD TO 7
SEGMENT
DECODER
MUX REASSEMBLER WITH
LEADING ZERO BLANKING,
DISPLAY LATCHES & DRIVERS
V
SS
7
7
7
7
7
7
BACK
PLANE
6-DIGIT LCD DISPLAY
CAUTION
MAXIMUM RATINGS (VOLTAGE REF. TO V
SS
)
RATING
SYMBOL
VALUE
UNIT
This device contains CMOS circuitry which 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 units handled only on a conductive table
top by personnel wearing wrist-strap grounding equipment. These devices
have the same protection circuits as standard CMOS devices to prevent
damage to inputs due to nominal over-voltage.
DC Supply Voltage
Input Voltage, All Inputs
Operating Temperature
Storage Temperature
V
DD
V
I
T
A
T
STG
-0.5 to +5.25
-0.5 to (VDD +0.5)
-35 to +85
-35 to +85
VDC
VDC
°C
°C
ELECTRICAL CHARACTERISTICS V
DD
TYP, 25 °C UNLESS OTHERWISE SPECIFIED
SYMBOL
PARAMETER
UNIT
TEST CONDITION
SCUB1/SCUB2
MIN.
TYP
MAX
MIN.
SCUB1LV
TYP
MAX
V
DD
I
DD
I
DDQ
V
IH
V
IL
I
IL
Frequency
T
RST
T
LATCH
Supply Voltage
Supply Current
Quiescent Current
Input High Voltage
Input Low Voltage
Input Leakage
Current
Count Frequency
Reset Pulse Width
Latch Pulse Width
VDC
µA
µA
VDC
VDC
µA
KHz
µsec
µsec
V
DD
≥
V
IN
≥
V
SS
10 KHz Count Rate
0 on display
3.5
5.0
55
45
5.25
2.7
3.3
30
20
3.6
2.45
1.575
0.01
10
25
25
3.675
2.3625
1.89
1.215
0.01
10
25
25
2.52
1.62
2
TYPICAL APPLICATIONS
COUNT & CONTROL FROM REMOTE INPUTS
Inputs to SUB-CUB are CMOS inputs and must be adequately buffered if
remote
“off-board”
signal sources are used. This illustration shows a SUB-
CUB being used in an elementary counting application to depict some of the
buffering methods that can be used.
The Count Input is buffered by the NPN Transistor input circuit. The base
resistance is split into two 10 K resistors, with a filter cap to eliminate spurious
counts due to electrical interference pickup. The filter network will allow count
rates to 10 KHz with Symetrical +5 V input count pulses. The 4.7 K across the
input would not be required if the circuit supplying the count pulses has a low
off-state output impedance.
The Remote Button-actuated Reset input is buffered by a simple RC circuit
consisting of two 47 K resistors and a 0.01 µf capacitor.
+5VDC SUPPLY
V
DD
100K
.01
µf
T
R
C
L
V
SS
SUB-CUB
47K
10K
COUNT
INPUTS
4.7K
10K
.005
µf
COMMON
+5V
FREQUENCY, SPEED, FLOW, SPEED-RATIO,
PERIOD & CYCLE TIME INDICATIONS
This circuit uses a dual monostable I.C. to generate the proper latch and reset
coordination required for frequency or time-period readouts.
When frequency readout is desired, the pulse train whose frequency is to be
displayed, is applied to the CLK-A input,
(the inverter, in the CLK-A input,
causes the SUB-CUB to increment on the positive going edge of CLK-A pulses
and can be onitted if negative edge incrementing is satisfactory).
The CLK-B
input is supplied with standard time-base pulses whose period determines the
measuring time. For frequency measurement, this time is 1 second so CLK-B
input would be supplied with 1 pulse/sec. from a crystal clock or line-reference
divider. At the positive going edge of each CLK-B pulse, the first monostable
opens the SUB-CUB latch momentarily to update the display to the count
existing at that instant of time. Immediately after the latch closes, freezing the
updated count on the display, the internal counter in the SUB-CUB display is
reset to zero in preparation for a new counting cycle. Thus, at the end of each
measuring time interval the SUB-CUB display is updated to readout the number
of pulses received during the period, while it is accumulating new counts for the
next update.
Frequency ratio can be displayed by replacing the standard time-base
(CLK-
B)
input with a pulse train related to the second variable
(or denominator)
of
the ratio. Normally this pulse train is divided by 10, 100, or 1000 before being
applied to the CLK-B input to provide a higher resolution reading.
For period or cycle-time indication, CLK-A and B inputs are simply
interchanged. CLK-A input is now supplied with standard Clock Pulses, say 1
Hz to readout in seconds, while the pulse train whose period is being measured
is applied to the CLK-B input.
100K
100K
47K
REMOTE
RESET
3
2
4
5
16 13
14
12
11
CLK-B
1/2-4528
A
B
15 8
Q
9
1/2-4528
A
B
1
Q
7
V
DD
.001 µf
.001 µf
T
R
CLK-A
C
L
V
SS
SUB-CUB
CLK-A
CLK-B
L-LATCH
R-RESET
DISPLAY
UPDATE
TIME BASE
OR PERIOD
+5V
100K
100K
PULSE WIDTH OR DWELL-TIME READOUT
This circuit also uses two monostables, however for pulse-width readout they
function at two different times.
A train of standard clock pulses, whose period determines the readout
increments, is applied to the CLK-A input. For example if readout in seconds is
desired, CLK-A would receive 1 pulse/second, or 1 Hz The pulse whose width
is to be measured is applied to CLK-B input. At the positive going edge of the
CLK-B pulse, the first monostable momentarily resets the SUB-CUB internal
counter to zero, and it then begins accumulating counts from the CLK-A time
reference pulses. At the conclusion of the CLK-B pulse, the negative going
edge momentarily opens the SUB-CUB display latch, and the number of time-
reference pulses that have been counted, since reset, is latched on the display to
provide a direct readout of CLK-B pulse-width.
CLK-B
3
2
4
5
16 13
14
12
11
1/2-4528
A
B
15 8
Q
9
1/2-4528
A
B
1
Q
7
V
DD
.001 µf
.001 µf
T
R
CLK-A
C
L
V
SS
SUB-CUB
3
DISPLAY
UPDATE
PANEL BEZEL KIT FOR THE SUB-CUB 2 (P/N HWK40000)
This kit provides a convenient way to adapt the SUB-CUB 2 to panel mounting. The kit includes
the black plastic bezel, the panel and internal window gaskets, P.C. Board, 12" ribbon cable and
mounting screws.
ASSEMBLY
PANEL
GASKET
BEZEL
INTERNAL
WINDOW
GASKET
CUSTOMER'S PANEL
.05"-.150" THICK
4-40 SCREWS
1/4" LONG FOR
.05"-.12" PANELS
GRN
BLU
VIO
GRY
WHT
BLK
SUB-CUB 2
+V
DD
T (TEST)
R (RESET)
C (COUNT)
L (LATCH)
V
SS
(COMMON)
PC BOARD
DIMENSIONS & PANEL CUT-OUT In inches (mm)
A
.30
(7.62)
.38
(9.65)
PANEL CUT-OUT FRONT VIEW
2X 1/8" DIA.
1.55
(39.37)
SUB
CUB
PC BOARD
(CUSTOMER
FURNISHED)
1.03
(26.16)
1.88 (47.75)
2X 1/4" DIA.
A
2.187 (55.55)
2.75 (69.85)
.25
(6.35)
SECTION A-A
EVALUATION BOARD
The SUB-CUB evaluation board, DMOSCB02, can be used for bread board
evaluation of the SCUB1 or SCUB2. The SCUB will mount directly to the
evaluation board and all connections to the SCUB are made accessible via
header pins. Note that the DMOSCB02 evaluation board does not include the
SUB-CUB Display/Counter Module, which must be ordered separately.
SUB-CUB
MOUNTING BOARD
P/N DMOSCB02
CUSTOMER DESIGNED
BREAD BOARD
ORDERING INFORMATION
MODEL NO.
DESCRIPTION
PART NUMBER
SCUB1
SCUB1LV
SCUB2
HWK 4
HWK 3
SUB-CUB 1 Display/Counter Module
SCUB1000
SUB-CUB 1 Low Voltage Display/Counter Module
SCUB1LV0
SUB-CUB 2 Display/Counter Module
SCUB2000
*SUB-CUB 2 Panel Bezel Kit with P.C. Board & Cable
HWK40000
*SUB-CUB 2 Panel Bezel Kit w/o P.C. Board & Cable
HWK30000
SUB-CUB Mounting P.C. Board
DMOSCB02
* SUB-CUB Evaluation Board Does Not Include SUB-CUB Dislay/Counter Module.
Order SUB-CUB Module Separately.
京公网安备 11010802033920号
EEWORLD
