MM5452, MM5453
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SNLS367C –FEBRUARY 1995–REVISED MARCH 2013
MM5452/MM5453 Liquid Crystal Display Drivers
Check for Samples: MM5452,MM5453
1FEATURES DESCRIPTION
The MM5452 is a monolithic integrated circuit utilizing
2• Serial Data Input CMOS metal gate, low threshold enhancement mode
• No Load Signal Required devices. It is available in a 40-pin PDIP package. The
• DATA ENABLE (MM5452) chip can drive up to 32 segments of LCD and can be
paralleled to increase this number. The chip is
• Wide Power Supply Operation capable of driving a 4½-digit 7-segment display with
• TTL Compatibility minimal interface between the display and the data
• 32 or 33 Outputs source.
• Alphanumeric and Bar Graph Capability The MM5452 stores display data in latches after it is
• Cascaded Operation Capability clocked in, and holds the data until new display data
is received.
APPLICATIONS
• COPS™ or Microprocessor Displays
• Industrial Control Indicator
• Digital Clock, Thermometer, Counter,
Voltmeter
• Instrumentation Readouts
• Remote Displays
Block Diagram
Figure 1.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
1Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Copyright © 1995–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
MM5452, MM5453
SNLS367C –FEBRUARY 1995–REVISED MARCH 2013
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Absolute Maximum Ratings (1)(2)
Voltage at Any Pin, Referenced to Gnd -0.3V to +10V
Storage Temperature -65°C to +150°C
Power Dissipation at 25°C 350mW
Power Dissipation at 70°C 300mW
Junction Temperature +150°C
Lead Temperature (Soldering, 10s) 300°C
(1) “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be ensured. They are not meant to imply
that the devices should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation.
(2) If Military/Aerospace specified devices are required, please contact the TI Sales Office/Distributors for availability and specifications.
Recommended Operating Conditions
VDD 3V to 10V
Operating Temperature −40°C to 85°C
Electrical Characteristics
TAwithin operating range, VDD = 3.0V to 10V, VSS = 0V unless otherwise specified.
Parameter Conditions Min Typ Max Units
Supply Voltage, VDD 3 10 V
Average Supply Current, IDD All Outputs Open, Clock=Gnd,
Data=Gnd,OSC=Gnd, BP_IN @ 32Hz
VDD= 5V 10 µA
VDD= 10V 40 µA
Input Logical '0' Voltage, VIL VDD= 3V 0.4 V
VDD= 5V 0.8 V
VDD= 10V 0.8 V
Input Logical '1' Voltage, VIH VDD= 3V 2.0 V
VDD= 5V 2.0 V
VDD= 10V 8.0 V
Segment Sink Current, IOL VDD= 3V, VOUT= 0.3V -20 -40 µA
Segment Source Current, IOH VDD= 3V, VOUT= 2.7V 20 40 µA
Backplane Out Sink Current, IOL VDD= 3V, VOUT= 0.3V -320 -500 µA
Backplane Out Source Current, VDD= 3V, VOUT= 2.7V 320 500 µA
IOH
Segment Output Offset Voltage Segment Load = 250pF (1) +/-50 mV
Backplane Output Offset Voltage Backplane Load = 8750pF (1) +/-50 mV
Backplane Out Frequency ROSC_IN= 50kΩ, COSC_IN= 0.01µF 75 Hz
Clock Input Frequency, fCLOCK(2) VDD= 3V (1) (3) 500 kHz
VDD= 5V (1) 750 kHz
VDD= 10V (1) 1.0 MHz
Clock Input Duty Cycle(2) 40 60 %
Data Input Set-Up Time, tDS 300 ns
Data Input Hold Time, tDH 300 ns
DataEnable Set-up Time, tDES 100 ns
(1) This parameter is ensured (but not production tested) over the operating temperature range and the operating supply voltage range. Not
to be used in Q.A. testing.
(2) Clock input rise time (tr) and fall time (tf) must not exceed 300ns
(3) AC input waveform for test purposes: tr≤20ns, tf≤20ns, fCLOCK= 500kHz, Duty Cycle = 50% ±10%
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Product Folder Links: MM5452 MM5453
MM5452, MM5453
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SNLS367C –FEBRUARY 1995–REVISED MARCH 2013
Connection Diagram
Figure 2. Top View Figure 3. Top View
See Package Number NFJ0040A See Package Number NFJ0040A
Figure 4. Top View Figure 5. Top View
See Package Number FN0044A See Package Number FN0044A
Copyright © 1995–2013, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Links: MM5452 MM5453
MM5452, MM5453
SNLS367C –FEBRUARY 1995–REVISED MARCH 2013
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FUNCTIONAL DESCRIPTION
The MM5452 is specifically designed to operate 4½-digit 7-segment displays with minimal interface with the
display and the data source. Serial data transfer from the data source to the display driver is accomplished with 2
signals, serial data and clock. Since the MM5452 does not contain a character generator, the formatting of the
segment information must be done prior to inputting the data to the MM5452. Using a format of a leading “1”
followed by the 32 data bits allows data transfer without an additional load signal. The 32 data bits are latched
after the 36th clock is complete, thus providing non-multiplexed, direct drive to the display. Outputs change only if
the serial data bits differ from the previous time.
A block diagram is shown in Figure 1. For the MM5452 a DATA ENABLE is used instead of the 33rd output. If
the DATA ENABLE signal is not required, the 33rd output can be brought out. This is the MM5453 device.
Figure 7 shows the input data format. A start bit of logical “1” precedes the 32 bits of data. At the 36th clock a
LOAD signal is generated synchronously with the high state of the clock, which loads the 32 bits of the shift
registers into the latches. At the low state of the clock a RESET signal is generated which clears all the shift
registers for the next set of data. The shift registers are static master-slave configuration. There is no clear for
the master portion of the first shift register, thus allowing continuous operation.
If the clock is not continuous, there must be at least a complete set of 36 clocks otherwise the shift registers will
not load and clear.
Bit 1 is the first bit following the start bit and it will appear on device pin 18 of the MM5452N and MM5453N, and
on device pin 20 of the MM5452V and MM5453V.
Figure 6 shows the timing relationships between data, clock and DATA ENABLE.
Figure 6. Timing Diagram
Figure 7. Input Data Format
Figure 8 shows a typical application. Note how the input data maps to the output pins and the display. The
MM5452 and MM5453 do not have format restrictions, as all outputs are controllable. The application assumes a
specific display pinout. Different display/driver connection patterns will, of course, yield a different input data
format.
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SNLS367C –FEBRUARY 1995–REVISED MARCH 2013
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*The minimum recommended value for R for the oscillator input is 9 kΩ. An RC time constant of approximately 4.91 ×
10−4should produce a backplane frequency between 30 Hz and 150 Hz.
Figure 9. Parallel Backplane Outputs
Figure 10. External Backplane Clock
Figure 11 shows a four wire remote display that takes advantage of the device’s serial input to move many bits of
display information on a few wires.
USING AN EXTERNAL CLOCK
The MM5452/MM5453 LCD Drivers can be used with an externally supplied clock, provided it has a duty cycle of
50%. Deviations from a 50% duty cycle result in an offset voltage on the LCD. In Figure 10, a flip-flop is used to
assure a 50% duty cycle. The oscillator input is grounded to prevent oscillation and reduce current consumptions
in the chips. The oscillator is not used.
Using an external clock allows synchronizing the display drive with AC power, internal clocks, or DVM integration
time to reduce interference from the display.
Figure 12 is a general block diagram that shows how the device’s serial input can be used to advantage in an
analog display. The analog voltage input is compared with a staircase voltage generated by a counter and a
digital-to-analog converter or resistor array. The result of this comparison is clocked into the MM5452, MM5453.
The next clock pulse increments the staircase and clocks the new data in.
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MM5452, MM5453
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SNLS367C –FEBRUARY 1995–REVISED MARCH 2013
With a buffer amplifier, the same staircase waveform can be used for many displays. The digital-to-analog
converter need not be linear; logarithmic or other non-linear functions can be displayed by using weighted
resistors or special DACs. This system can be used for status indicators, spectrum analyzers, audio level and
power meters, tuning indicators, and other applications.
Figure 11. Four Wire Remote Display
Data is high until staircase > input
Figure 12. Analog Display
Copyright © 1995–2013, Texas Instruments Incorporated Submit Documentation Feedback 7
Product Folder Links: MM5452 MM5453
MM5452, MM5453
SNLS367C –FEBRUARY 1995–REVISED MARCH 2013
www.ti.com
REVISION HISTORY
Changes from Revision B (March 2013) to Revision C Page
• Changed layout of National Data Sheet to TI format ............................................................................................................ 7
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PACKAGE OPTION ADDENDUM
www.ti.com 10-Dec-2020
Addendum-Page 1
PACKAGING INFORMATION
Orderable Device Status
(1)
Package Type Package
Drawing Pins Package
Qty Eco Plan
(2)
Lead finish/
Ball material
(6)
MSL Peak Temp
(3)
Op Temp (°C) Device Marking
(4/5)
Samples
MM5452V/NOPB ACTIVE PLCC FN 44 25 RoHS & Green SN Level-3-245C-168 HR -40 to 85 MM5452V
MM5452VX/NOPB ACTIVE PLCC FN 44 500 RoHS & Green SN Level-3-245C-168 HR -40 to 85 MM5452V
MM5453V/NOPB ACTIVE PLCC FN 44 25 RoHS & Green SN Level-3-245C-168 HR -40 to 85 MM5453V
MM5453VX/NOPB ACTIVE PLCC FN 44 500 RoHS & Green SN Level-3-245C-168 HR -40 to 85 MM5453V
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6) Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two
lines if the finish value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
PACKAGE OPTION ADDENDUM
www.ti.com 10-Dec-2020
Addendum-Page 2
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
www.ti.com
PACKAGE OUTLINE
C
44X -.021.013 -0.530.33[ ]
44X -.032.026 -0.810.66[ ]
TYP
-.695.685 -17.6517.40[ ]
40X .050
[1.27]
-.638.582 -16.2014.79[ ]
.020 MIN
[0.51]
TYP-.120.090 -3.042.29[ ]
.180 MAX
[4.57]
B
NOTE 3
-.656.650 -16.6616.51[ ]
A
NOTE 3
-.656.650 -16.6616.51[ ]
(.008)
[0.2]
4215154/A 04/2017
4215154/A 04/2017
PLCC - 4.57 mm max heightFN0044A
PLASTIC CHIP CARRIER
NOTES:
1. All linear dimensions are in inches. Any dimensions in brackets are in millimeters. Any dimensions in parenthesis are for reference only.
Controlling dimensions are in inches. Dimensioning and tolerancing per ASME Y14.5M.
2. This drawing is subject to change without notice.
3. Dimension does not include mold protrusion. Maximum allowable mold protrusion .01 in [0.25 mm] per side.
4. Reference JEDEC registration MS-018.
PIN 1 ID
(OPTIONAL)
144
6
18 28
29
39
40
7
17
.004 [0.1] C
.007 [0.18] C A B
SEATING PLANE
SCALE 0.800
www.ti.com
EXAMPLE BOARD LAYOUT
.002 MAX
[0.05]
ALL AROUND
.002 MIN
[0.05]
ALL AROUND
44X (.093 )
[2.35]
44X (.030 )
[0.75]
40X (.050 )
[1.27]
(.64 )
[16.2]
(.64 )
[16.2]
(R.002 ) TYP
[0.05]
4215154/A 04/2017
4215154/A 04/2017
PLCC - 4.57 mm max heightFN0044A
PLASTIC CHIP CARRIER
NOTES: (continued)
5. Publication IPC-7351 may have alternate designs.
6. Solder mask tolerances between and around signal pads can vary based on board fabrication site.
LAND PATTERN EXAMPLE
EXPOSED METAL SHOWN
SCALE:4X
SYMM
SYMM
144
6
18 28
29
39
40
7
17
METAL SOLDER MASK
OPENING
NON SOLDER MASK
DEFINED
(PREFERRED) SOLDER MASK DETAILS
EXPOSED METAL
SOLDER MASK
OPENING METAL UNDER
SOLDER MASK
SOLDER MASK
DEFINED
EXPOSED METAL
www.ti.com
EXAMPLE STENCIL DESIGN
44X (.030 )
[0.75]
44X (.093 )
[2.35]
(.64 )
[16.2]
(.64 )
[16.2]
40X (.050 )
[1.27]
(R.002 ) TYP
[0.05]
PLCC - 4.57 mm max heightFN0044A
PLASTIC CHIP CARRIER
4215154/A 04/2017
PLCC - 4.57 mm max heightFN0044A
PLASTIC CHIP CARRIER
NOTES: (continued)
7. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate
design recommendations.
8. Board assembly site may have different recommendations for stencil design.
SOLDER PASTE EXAMPLE
BASED ON 0.125 mm THICK STENCIL
SCALE:4X
SYMM
SYMM
144
6
18 28
29
39
40
7
17
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