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SH3003 Datasheet(PDF) 6 Page - Semtech Corporation

Part # SH3003
Description  MicroBuddy짰 Support IC for Microcontrollers
PDF  30 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SH3003 Datasheet(HTML) 6 Page - Semtech Corporation

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©2006 Semtech Corp.
SH3003
www.semtech.com
Not authorized for release outside of Semtech
- DRAFT
POWER MANAGEMENT
Pin
Pin Name
Type
Pin Function
T
Thermal pad - connect to ground
1VSS
Power
Ground, 0V - All VSS pins and TEST (VSS) pin must be connected together.
2
VREG
Power
Output of internal Voltage Regulator, 2.2V nominal. This pin can power exter-
nal loads of < 5mA. If load is “noisy” it requires a bypass capacitor. May be left
unconnected or used as a high logic level signal for CLKSEL pin.
3VDD
Power
Main power supply, +2.3 to +5.5V
4VBAK
Power
Back-up power supply for real-time clock, +2.3 to +5.5V (+1.8 to +5.5V typical).
This voltage can be higher or lower than VDD. Connect a backup battery or
backup capacitor (with external recharge circuit). Connect to VDD if not used.
5XIN
Analog In
Oscillator pins for optional external low frequency crystal, typically 32.768kHz
crystal with nominal 12.5pF load cap. Keep open or connect to VSS if not used.
6XOUT
Analog Out
7
CLKSEL
Digital In
A logic low level selects the internal 32.768kHz RC oscillator (CLKSEL tied to
VSS). A high state on this pin selects the 32.768kHz crystal oscillator (CLKSEL is
connected to VREG). The SH3003 always starts up using the internal 32.768kHz
RC oscillator. If CLKSEL is high, the internal 32.768kHz clock switches to the
crystal oscillator once it has stabilized, and RC oscillator is disabled for power
conservation. Do not connect CLKSEL to any signals except VSS or VREG. CLKSEL
must not be left open.
8VSS
Power
Ground, 0V. All VSS pins and TEST (VSS) pin must be connected together.
Device
Package
SH3003IMLTR
MLP 3x3mm, 16 pins
SH3003IMLTRT
MLP 3x3mm, 16 pins, lead-free
EVK-SH3000USB
SH3000 Evaluation Kit
SH3000EK.pdf
SH3000 Evaluation Kit User Guide
SH3000UM.pdf
SH3000 Reference Manual
TOP VIEW
1
2
3
4
12
11
10
9
16
15
14
13
5678
MLP 16: 3x3 16 LEAD
T
VSS
TEST VSS
RST
NRST
NRST
VBAK
VDD
VREG
Pin Configuration
Ordering Information
Pin Descriptions



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