SH3000EK SEMTECH [Semtech Corporation], SH3000EK Datasheet
SH3000EK
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SH3000EK Summary of contents
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SYSTEM MANAGEMENT Description The programmable SH3002 MicroBuddy™ (µBuddy™) provides mandatory microcontroller support functions: ♦ CPU Supervisor ♦ Clock Management System ♦ Auxiliary functions Three components make a complete system: any microcontroller, the SH3002, and a bypass capacitor. This low-cost system ...
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... SYSTEM MANAGEMENT Description Ordering Information SH3002IMLTR IC EVK-SH3000USB SH3000 evaluation kit SH3000EK.pdf SH3000 Evaluation Kit User Guide SH3000UM.pdf SH3000 Reference Manual Block Diagram Regulators Voltage V SS Reference 8 LF Oscillator REF 9 Oscillator Copyright ©2002-2005 Semtech Corporation MLP mm, 16 pins, temp. range -40° ...
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SYSTEM MANAGEMENT Pin Descriptions Pin Name Type 1 V Power Ground All V SS Output of internal Voltage Regulator, 2.2 V nominal. This pin can power external loads 2 V Power of <5 mA. If load is “noisy” ...
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SYSTEM MANAGEMENT Functional Description The SH3002 is a single-chip support system for microcontrollers, microprocessors, DSPs and ASICs. It consists of four major functional blocks, each block having numerous enhancements over alternative solutions. The major modules are the CPU Supervisor, the ...
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SYSTEM MANAGEMENT CPU Supervisor The SH3002 has two supervisory functions that manage the reset of the target processor, a low V monitor (Brownout Detector), see Figure 1. Both functions are integrated with the Clock Management System to provide a more ...
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SYSTEM MANAGEMENT Since the clock is only active for the last the reset interval, when V has already been valid for DD some time, energy savings are realized and the startup of the whole system ...
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SYSTEM MANAGEMENT Clock Management System The SH3002 provides a flexible tool for creating and managing clocks, a versatile and accurate “any frequency” clock synthesizer (see Figure 4 capable of generating any frequency in the range of 62.5 kHz ...
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SYSTEM MANAGEMENT The SH3002 employs a Frequency Locked Loop (FLL) to synchronize the HF clock to the 32.768 kHz reference. This architecture has several advantages over the common PLL (Phase Locked Loop) systems, including the ability to stop and re-start ...
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SYSTEM MANAGEMENT Low Frequency (LF) Oscillator System This module provides the 32 kHz clock to all internal circuits and to the dedicated output pin, CLK32. If enabled, the CLK32 output continues normal operations when V is absent and backup power ...
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SYSTEM MANAGEMENT Periodic Interrupt / Wakeup Timer Simple and versatile, the Periodic Interrupt / Wakeup Timer can be used to create very accurate recurring interrupts for use by the host micro. With some minimal software support from the host processor, ...
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SYSTEM MANAGEMENT Interrupt and Serial Interface A single line is used to convey bi-directional information between the SH3002 and the processor, and as the interrupt line to the processor. The polarity of the interrupt signal is programmable. The SH3002 and ...
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SYSTEM MANAGEMENT Copyright ©2002-2005 Semtech Corporation Figure 7: Serial Communication Timing Diagram 12 SH3002 MicroBuddy™ V1.20 www.semtech.com ...
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SYSTEM MANAGEMENT Electrical Specifications Absolute Maximum Ratings Note: The SH3002 is ESD-sensitive. Description Supply voltages on V relative to ground DD Input voltage on CLK , IO/I , TEST IN NT Input voltage on CLK SEL Input current on any ...
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SYSTEM MANAGEMENT Operating characteristics of 32.768 kHz RC oscillator Parameter External 1 MOhm referenced nominal frequency Internal 1 MOhm referenced nominal frequency CLK32 duty cycle Programmed frequency accuracy at 25°C Absolute accuracy over temperature and supply (external 1 MOhm) Absolute ...
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SYSTEM MANAGEMENT Operating characteristics of the high-frequency oscillator (HFO) Parameter Minimum operating frequency (Start-up default = 2 MHz) Maximum operating frequency Frequency resolution Programmed frequency accuracy at 25°C Frequency drift over temperature and supply CLK cycle to cycle jitter (spread ...
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SYSTEM MANAGEMENT Free Running HF DCO Frequency Deviation over Temperature for All Frequencies 4000 2000 0 -60 -40 -20 -2000 -4000 -6000 -8000 -10000 -12000 -14000 -16000 Internal 32.768 kHz Oscillator Frequency over Temperature 33400 33200 33000 32800 32600 32400 ...
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SYSTEM MANAGEMENT Standby Current over Temperature (V 25.0 20.0 15.0 10.0 5.0 0.0 -60 -40 -20 0 Standby current over Internal 32.768 kHz 2.5 3 Copyright ©2002-2005 Semtech Corporation = 5 V) ...
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SYSTEM MANAGEMENT V Current vs CLKOUT Frequency (V DD 3500 3000 2500 2000 1500 1000 500 Operating V Current over V DD 3200 3000 2800 2600 2400 2200 2000 2.5 3 Copyright ©2002-2005 Semtech Corporation = ...
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SYSTEM MANAGEMENT Free Running HF DCO Short Term Frequency Stability (CLKOUT = 8 MHz) 300 200 100 0 -500 500 1500 -100 -200 -300 -400 FLL Locked HF DCO Jitter over Jitter Bandwidth (CLKOUT = 12.8 MHz) 100000 10000 1000 ...
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SYSTEM MANAGEMENT Package Outline Drawing MLP pins Copyright ©2002-2005 Semtech Corporation SH3002 MicroBuddy™ 20 V1.20 www.semtech.com ...
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SYSTEM MANAGEMENT Copyright ©2002-2005 Semtech Corporation SH3002 MicroBuddy™ For sales information and product literature, contact: Semtech Corporation Human Interface Device (HID) and System Management Division 200 Flynn Road Camarillo, CA 93012-8790 sales@semtech.com http://www.semtech.com/ (805)498-2111 Telephone (805)498-3804 Fax Copyright ©2002-2003 Semtech ...
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Filename: sh3002.doc Directory: U:\working file\nathan\08_09_05 Template: C:\Documents and Settings\lcarey\Application Data\Microsoft\Templates\Normal.dot Title: SH3002 MicroBuddy™ data sheet Subject: Reset Management and Clock Management Support IC for Microcontrollers Author: Semtech Corporation Keywords: Comments: Creation Date: 1/24/2003 10:42 AM Change Number: 75 Last Saved ...