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MAX6952 Datasheet

  • MAX6952

  • " 4-Wire Interfaced, 2.7V to 5.5V, 4-Digit 5 x 7 Matrix LED ...

  • Maxim   Maxim

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19-2437; Rev 1; 10/02
KIT
ATION
EVALU
BLE
AVAILA
4-Wire Interfaced, 2.7V to 5.5V,
4-Digit 5
鉁?/div>
7 Matrix LED Display Driver
General Description
Features
o
High-Speed 26MHz with SPI-/QSPI-鈩?
MICROWIRE鈩?Compatible Serial Interface
o
2.7V to 5.5V Operation
o
Drives Four Monocolor or Two Bicolor Cathode-
Row 5
鉁?/div>
7 Matrix Displays
o
Built-In ASCII 104-Character Font
o
24 User-Definable Characters Available
o
Automatic Blinking Control for Each Segment
o
36碌A(chǔ) Low-Power Shutdown (Data Retained)
o
16-Step Digital Brightness Control
o
Display Blanked on Power-Up
o
Slew-Rate-Limited Segment Drivers for Lower EMI
o
36-Pin SSOP and 40-Pin DIP Packages
MAX6952
The MAX6952 is a compact cathode-row display driver
that interfaces microprocessors to 5
鉁?/div>
7 dot-matrix LED
displays through an SPI鈩?compatible serial interface.
The MAX6952 drives up to four digits (140 LEDs).
Included on chip are an ASCII 104-character font, mul-
tiplex scan circuitry, column and row drivers, and static
RAM that stores each digit, as well as font data for 24
user-definable characters. The segment current for the
LEDs is set by an internal digit-by-digit digital bright-
ness control.
The device includes a low-power shutdown mode, seg-
ment blinking (synchronized across multiple drivers, if
desired), and a test mode that forces all LEDs on. The
LED drivers are slew rate limited to reduce EMI.
For a 2-wire interfaced version, refer to the MAX6953
data sheet. An EV kit is available for the MAX6952.
Applications
Message Boards
Medical Equipment
Industrial Displays
Audio/Video
Equipment
Gaming Machines
PART
MAX6952EAX
MAX6952EPL
Ordering Information
TEMP RANGE
-40擄C to +85擄C
-40擄C to +85擄C
PIN-PACKAGE
36 SSOP
40 PDIP
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Pin Configurations appear at end of data sheet.
Typical Application Circuit
DIGIT 0
DIGIT 1
O19
O20
O21
O22
O23
O0
O1
O2
O3
O4
O5
O6
C1
C2
C3
C4
C5
3.3V
V+
V+
100nF
47碌F
GND
GND
GND
3.3V
MAX6952
4.7k鈩?/div>
CLK
DIN
CS
DOUT
BLINK
OSC
ISET
C
SET
26pF
R
SET
53.6k鈩?/div>
O0
O1
O2
O3
O4
O5
O6
O7
O8
O9
O10
O11
O12
O13
O14
O15
O16
O17
O18
O19
O20
O21
O22
O23
O14
O15
O16
O17
O18
O0
O1
O2
O3
O4
O5
O6
C1
C2
C3
C4
C5
R1
R2
R3
R4
R5
R6
R7
R1
R2
R3
R4
R5
R6
R7
DIGIT 2
O14
O15
O16
O17
O18
O7
O8
O9
O10
O11
O12
O13
C1
C2
C3
C4
C5
O19
O20
O21
O22
O23
O7
O8
O9
O10
O11
O12
O13
DIGIT 3
C1
C2
C3
C4
C5
R1
R2
R3
R4
R5
R6
R7
R1
R2
R3
R4
R5
R6
R7
________________________________________________________________
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.

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