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MAX7347ATE+T

Description
IC cntrl SW sound 16-tqfn
CategoryThe embedded processor and controller    Microcontrollers and processors   
File Size346KB,29 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
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MAX7347ATE+T Overview

IC cntrl SW sound 16-tqfn

MAX7347ATE+T Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeQFN
package instruction4 X 4 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, MO-220WGGC, TQFN-16
Contacts16
Reach Compliance Codecompliant
Other featuresMONITORS UP TO 24 KEYS
JESD-30 codeS-XQCC-N16
JESD-609 codee3
length4 mm
Humidity sensitivity level1
Number of terminals16
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Package body materialUNSPECIFIED
encapsulated codeHVQCCN
Encapsulate equivalent codeLCC16,.16SQ,25
Package shapeSQUARE
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)260
power supply2.5/3.3 V
Certification statusNot Qualified
Maximum seat height0.8 mm
Maximum slew rate0.1 mA
Maximum supply voltage3.6 V
Minimum supply voltage2.4 V
Nominal supply voltage3.3 V
surface mountYES
technologyBICMOS
Temperature levelAUTOMOTIVE
Terminal surfaceTIN
Terminal formNO LEAD
Terminal pitch0.65 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
width4 mm
uPs/uCs/peripheral integrated circuit typeMICROPROCESSOR CIRCUIT
19-3556; Rev 5; 5/07
IT
TION K
VALUA
E
BLE
AVAILA
2-Wire Interfaced Low-EMI Key Switch
and Sounder Controllers
General Description
Features
400kbps, 5.5V-Tolerant 2-Wire Serial Interface
2.4V to 3.6V Operation
Monitor Up to 64 Keys (MAX7349),
40 Keys (MAX7348), or 24 Keys (MAX7347)
FIFO Queues Up to 8 Debounced Key Events
Key Debounce Time User Configurable from 9ms
to 40ms
Key Autorepeat Rate and Delay User Configurable
Low-EMI Design Uses Static Matrix Monitoring
Hardware Interrupt on Each Debounced Event or
FIFO Level, or at End of Definable Time Period
Up to Six Open-Drain Logic Outputs Available
Capable of Driving LEDs
Sounder Output Generates Automatic Key Clicks
14 Programmable Musical Sounder Frequencies
Continuous or Programmable Sounder Duration
Easy Automatic Single-Tone and Dual-Tone Alarm
Sound Generation
Four I
2
C Address Choices
Selectable 2-Wire Serial Bus Timeout
Under 10µA Shutdown Current
MAX7347/MAX7348/MAX7349
The MAX7347/MAX7348/MAX7349 I
2
C interfaced periph-
erals provide microprocessors with management of up to
64 key switches. Key inputs are monitored statically, not
dynamically scanned, to ensure low-EMI operation. The
MAX7347 can monitor up to 24 switches, the MAX7348
can monitor up to 40 switches, and the MAX7349 can
monitor up to 64 switches. The switches can be metallic
or resistive (carbon) up to 1kΩ.
The key controller debounces and maintains a FIFO of
key-press events (including autorepeat, if enabled). An
interrupt (INT) output can be configured to alert key
presses either as they occur, or at maximum rate.
The MAX7348/MAX7349 feature a tone generator to
generate automatic key-click sounds or alarm tones
under processor control.
The sounder frequencies cover the 5th musical octave
(523.25Hz to 987.77Hz), plus seven other musical
notes up to 2637Hz. The output can also be pro-
grammed to be high or low for the sound duration to
operate an electronic sounder, relay, or lamp.
The MAX7347 is offered in 16-pin QSOP and TQFN
packages. The MAX7348 is offered in a 20-pin QSOP
package. The MAX7349 is available in 24-pin QSOP and
TQFN packages. The MAX7347/MAX7348/MAX7349
operate over the -40°C to +125°C temperature range.
Applications
Medical Instruments
Instrumentation Panels
Security and Access
Industrial Controls
Pin Configurations appear at end of data sheet.
Ordering Information
PART
MAX7347AEE+
MAX7347ATE+
MAX7348AEP+
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-
PACKAGE
16 QSOP
16 TQFN-EP*
20 QSOP
24 QSOP
24 TQFN-EP*
PKG
CODE
E16-4
T1644-4
E20-1
E24-1
T2444-4
Typical Application Circuit
INPUT
2.4V TO 3.6V
V+
MAX7349
COL_
8
SWITCH
ARRAY, UP
TO 64
SWITCHES
MAX7349AEG+
MAX7349ATG+
8
ROW_
SCL
SDA
ALERT
INT
AD0
GND
SOUNDER
+Denotes
lead-free package.
*EP
= Exposed paddle.
PIEZO
TRANSDUCER
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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Description IC cntrl SW sound 16-tqfn IC key switch 2wire 20-qsop IC cntrl SW sound 24-tqfn IC cntrl SW sound 24-qsop IC CNTRL SW SOUND 16-QSOP
Is it lead-free? Lead free Lead free Lead free Lead free Lead free
Is it Rohs certified? conform to conform to conform to conform to conform to
Parts packaging code QFN SSOP QFN SSOP SSOP
package instruction 4 X 4 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, MO-220WGGC, TQFN-16 SSOP, SSOP20,.25 HVQCCN, LCC24,.16SQ,20 SSOP, SSOP24,.24 SSOP, SSOP16,.25
Contacts 16 20 24 24 16
Reach Compliance Code compliant compli compliant compliant compliant
JESD-30 code S-XQCC-N16 R-PDSO-G20 S-XQCC-N24 R-PDSO-G24 R-PDSO-G16
JESD-609 code e3 e3 e3 e3 e3
length 4 mm 8.65 mm 4 mm 8.65 mm 4.9 mm
Humidity sensitivity level 1 1 1 1 1
Number of terminals 16 20 24 24 16
Maximum operating temperature 125 °C 125 °C 125 °C 125 °C 125 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 °C -40 °C
Package body material UNSPECIFIED PLASTIC/EPOXY UNSPECIFIED PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code HVQCCN SSOP HVQCCN SSOP SSOP
Encapsulate equivalent code LCC16,.16SQ,25 SSOP20,.25 LCC24,.16SQ,20 SSOP24,.24 SSOP16,.25
Package shape SQUARE RECTANGULAR SQUARE RECTANGULAR RECTANGULAR
Package form CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, SHRINK PITCH CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 260 NOT SPECIFIED 260 260 260
power supply 2.5/3.3 V 2.5/3.3 V 2.5/3.3 V 2.5/3.3 V 2.5/3.3 V
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 0.8 mm 1.73 mm 0.8 mm 1.73 mm 1.75 mm
Maximum slew rate 0.1 mA 0.1 mA 0.1 mA 0.1 mA 0.1 mA
Maximum supply voltage 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V
Minimum supply voltage 2.4 V 2.4 V 2.4 V 2.4 V 2.4 V
Nominal supply voltage 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V
surface mount YES YES YES YES YES
technology BICMOS BICMOS BICMOS BICMOS BICMOS
Temperature level AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE
Terminal surface TIN Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn)
Terminal form NO LEAD GULL WING NO LEAD GULL WING GULL WING
Terminal pitch 0.65 mm 0.635 mm 0.5 mm 0.635 mm 0.635 mm
Terminal location QUAD DUAL QUAD DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
width 4 mm 3.9 mm 4 mm 3.9 mm 3.9 mm
uPs/uCs/peripheral integrated circuit type MICROPROCESSOR CIRCUIT MICROPROCESSOR CIRCUIT MICROPROCESSOR CIRCUIT MICROPROCESSOR CIRCUIT MICROPROCESSOR CIRCUIT
Maker Maxim Maxim - - Maxim
ECCN code - EAR99 EAR99 EAR99 EAR99
Factory Lead Time - 7 weeks 8 weeks 6 weeks 7 weeks
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