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MAX6950 Datasheet

  • MAX6950

  • "Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Dis...

  • 182.23KB

  • Maxim   Maxim

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19-2227; Rev 1; 12/01
Serially Interfaced, +2.7V to +5.5V,
5- and 8-Digit LED Display Drivers
General Description
The MAX6950/MAX6951 are compact common-cath-
ode display drivers that interface microprocessors to
individual 7-segment numeric LED digits, bar graph, or
discrete LEDs through an SPI鈩?, QSPI鈩?MICROWIRE鈩?
compatible serial interface. The supply voltage can be
as low as 2.7V.
The MAX6950 drives up to five 7-segment digits or 40
discrete LEDs. The MAX6951 drives up to eight 7-seg-
ment digits or 64 discrete LEDs.
Included on-chip are hexadecimal character decoders
(0鈥?, A鈥揊), multiplex scan circuitry, segment and digit
drivers, and a static RAM that stores each digit. The
user may select hexadecimal decoding or no-decode
for each digit to allow any mix of 7-segment digits, bar
graph, or discrete LEDs to be driven. The segment cur-
rent for the LEDs is set by an internal digital brightness
control. The segment drivers are slew-rate limited to
reduce EMI.
Individual digits may be addressed and updated with-
out rewriting the entire display. The devices include a
low-power shutdown mode, digital brightness control, a
scan-limit register that allows the user to display from
one to eight digits, segment blinking that can be syn-
chronized across drivers, and a test mode that forces
all LEDs on.
Features
o
High-speed 26MHz SPI-, QSPI-, MICROWIRE-
Compatible Serial Interface
o
+2.7V to +5.5V Operation
o
Individual LED Segment Control
o
Segment Blinking Control that Can Be
Synchronized Across Multiple Drivers
o
Hexadecimal Decode/No-Decode Digit Selection
o
Digital Brightness Control
o
Display Blanked on Power-Up
o
Drives Common-Cathode LED Digits
o
Multiplex Clock Syncronizable to External Clock
o
Slew-Rate Limited Segment Drivers for Low EMI
o
75碌A(chǔ) Low-Power Shutdown (Data Retained)
o
Small 16-Pin QSOP Package
MAX6950/MAX6951
Ordering Information
PART
MAX6950CEE
MAX6950EEE
MAX6951CEE
MAX6951EEE
TEMP. RANGE
0擄C to +70擄C
-40擄C to +85擄C
0擄C to +70擄C
-40擄C to +85擄C
PIN-PACKAGE
16 QSOP
16 QSOP
16 QSOP
16 QSOP
Applications
Set-Top Boxes
Panel Meters
White Goods
Bar Graphs and Matrix Displays
Industrial Controllers and Instrumentation
Professional Audio Equipment
Medical Equipment
Pin Configuration
TOP VIEW
DIN 1
CLK 2
16 V+
15 CS
14 DIG4/SEG4
Functional Diagram appears at end of data sheet.
Typical Application appears at end of data sheet.
DIG3/SEG3 3
DIG2/SEG2 4
DIG1/SEG1 5
MAX6950
MAX6951
13 (DIG5)/SEG5
12 (DIG6)/SEG6
11 (DIG7)/SEG7
10 SEG8
9
OSC
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
DIG0/SEG0 6
ISET 7
GND 8
( ) MAX6951 ONLY
QSOP
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.

MAX6950 PDF文件相關(guān)型號(hào)

MAX6950CEE,MAX6950-MAX6951,MAX6951,MAX6951CEE,MAX6951EEE

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