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参数资料
| 型号： | 5962-9169201QXC |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | ADC |
| 英文描述： | 2-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, CDIP28 |
| 封装： | CERAMIC, DIP-28 |
| 文件页数： | 1/39页 |
| 文件大小： | 334K |
| 代理商： | 5962-9169201QXC |
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General Description
The MAX6954 is a compact display driver that inter-
faces microprocessors to a mix of 7-segment, 14-seg-
ment, and 16-segment LED displays through an SPI-
or QSPI-compatible 4-wire serial interface. The serial
interface may be cascaded through multiple devices.
The MAX6954 drives up to 16 digits 7-segment, 8 digits
14-segment, 8 digits 16-segment, or 128 discrete
LEDs, while functioning from a supply voltage as low as
2.7V. The driver includes five I/O expander (or GPIO)
lines, some or all of which may be configured as a key-
switch reader, which automatically scans and
debounces a matrix of up to 32 switches.
Included on chip are full 14- and 16-segment ASCII
104-character fonts, a hexadecimal font for 7-segment
displays, multiplex scan circuitry, anode and cathode
drivers, and static RAM that stores each digit. The max-
imum segment current for the display digits is set using
a single external resistor. Digit intensity can be inde-
pendently adjusted using the 16-step internal digital
brightness control. The MAX6954 includes a low-power
shutdown mode, a scan-limit register that allows the
user to display from 1 to 16 digits, segment blinking
(synchronized across multiple drivers, if desired), and a
test mode, which forces all LEDs on. The LED drivers
are slew-rate limited to reduce EMI.
For a 2-wire interfaced version, refer to the MAX6955
data sheet. An evaluation kit (EV kit) for the MAX6955 is
available.
Applications
Set-Top Boxes
Automotive
Panel Meters
Bar Graph Displays
White Goods
Audio/Video Equipment
Features
High-Speed 26MHz SPI/QSPI/MICROWIRE-
Compatible Serial Interface
2.7V to 5.5V Operation
Drives Up to 16 Digits 7-Segment, 8 Digits
14-Segment, 8 Digits 16-Segment, 128 Discrete
LEDs, or a Combination of Digit Types
Drives Common-Cathode Monocolor and Bicolor
LED Displays
Built-In ASCII 104-Character Font for 14-Segment
and 16-Segment Digits and Hexadecimal Font for
7-Segment Digits
Automatic Blinking Control for each Segment
10A (typ) Low-Power Shutdown (Data Retained)
16-Step Digit-by-Digit Digital Brightness Control
Display Blanked on Power-Up
Slew-Rate Limited Segment Drivers for Lower EMI
Five GPIO Port Pins Can Be Configured as Key-
Switch Reader to Scan and Debounce Up to 32
Switches with n-Key Rollover
IRQ Output when a Key Input Is Debounced
36-Pin SSOP and 40-Pin DIP and TQFN Packages
Automotive Temperature Range Standard
MAX6954
4-Wire Interfaced, 2.7V to 5.5V LED Display
Driver with I/O Expander and Key Scan
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
19-2460; Rev 4; 3/09
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
PART
TEMP RANGE
PIN-PACKAGE
MAX6954AAX
-40°C to +125°C
36 SSOP
MAX6954APL
-40°C to +125°C
40 PDIP
MAX6954ATL+
-40°C to +125°C
40 TQFN-EP*
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
+
Denotes a lead-free/RoHS-compliant package.
*
EP = Exposed pad.
Pin Configurations and Typical Operating Circuits appear
at end of data sheet.
ISET
OSC
OSC_OUT
BLINK
CLK
CS
DIN
DOUT
4-WIRE SERIAL INTERFACE
RAM
BLINK
CONTROL
CONFIGURATION
REGISTER
CHARACTER
GENERATOR
ROM
CURRENT
SOURCE
DIVIDER/
COUNTER
NETWORK
DIGIT
MULTIPLEXER
PWM
BRIGHTNESS
CONTROL
GPIO
AND KEY-SCAN
CONTROL
LED
DRIVERS
O0 TO O23
P0 TO P4
MAX6954
Functional Diagram
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| 5962-9169301M2A | 制造商:Texas Instruments 功能描述:-LIFETIME BUYS TIL 03/03 |
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| 5962-9169701MUA | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Intel 功能描述: |
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| 5962-9172201MEA | 制造商:e2v 功能描述:Counter Single 4-Bit Binary UP 16-Pin CDIP 制造商:e2v technologies 功能描述:Counter Single 4-Bit Binary UP 16-Pin CDIP |
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