(China (Mainland))
Product Summary
The SH3003 is a Support IC for Microcontrollers. Three components make a complete system: any microcontroller, the SH3003, and a bypass capacitor. This
low-cost system would consume very little power and have clock-frequency accuracy of ± 0.5%. A fourth component, a 32.768kHz crystal, raises the clock frequency accuracy to ± 0.0256% (± 256 ppm). A backup power source may also be connected to the SH3003. The IC can directly accommodate 2/3-cell zinccarbon/alkaline, 2/3-cell mercury, 2/3/4-cell NiCd/NiMH, one cell Li/Li+ batteries, or a super cap. The programmable SH3003 provides all mandatory microcontroller support functions: CPU Supervisor, Clock Management System, Real-Time Support and Auxiliary Functions. Applciations of the SH3003 include Home automation and security, Consumer products, Portable/handheld computers, Industrial equipment and Any microcontroller-based product.
Parametrics
SH3003 absolute maximum ratings: (1)Supply voltages on VDD or VBAK relative to ground: -0.5~5.5 V; (2)Input voltage on CLKIN: -0.5~VDD + 0.5 V; (3)Input voltage on CLKSEL: -0.5~VREG + 0.5 V; (4)Input current on any pin except VREG: 10 mA; (5)Input current on VREG: 150 mA; (6)Ambient operating temperature: -40~85℃; (7)Storage Temperature: -55~60℃; (8)IR Reflow temperature-SH3003IMLTR TIRRT: 240℃; (9)IR Reflow temperature-SH3003IMLTRT TIRRT: 260℃.
Features
SH3003 features: (1)IC - 3mm x 3mm x 0.9mm, 16-lead MLP (QFN) package; (2)Low VDD reset programmable from 2.3V to 4.3V; (3)Watchdog timer with programmable time out periods; (4)Both active-high and active-low reset outputs; (5)Clock Management System; (6)Real-Time Support; (7)4-byte (32-bit) scratchpad RAM, loaded on reset with factory-set value (zero or optional ID code); (8)All settings programmable in real time, defaults restored from nonvolatile memory on reset; (9)Operates from 2.3V to 5.5V.
Diagrams
