SH3100IMTR SEMTECH [Semtech Corporation], SH3100IMTR Datasheet

SH3100IMTR

Manufacturer Part Number

SH3100IMTR

Description

Supervisory IC with I2C Interface and PWM

Manufacturer

SEMTECH [Semtech Corporation]

Datasheet

1.SH3100IMTR.pdf (80 pages)

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The SH3100 is a size, power, and cost-saving solution for microprocessor support functions. It is intended to replace

a number of peripheral devices normally used in conjunction with a microprocessor. Its prime function is to provide

an accurate and stable clock source which can be started up and shut down very quickly to enable it to be used in a

pulsed fashion for very low power applications.

The SH3100 consumes very little power when in standby, and it provides a stable output clock in less than 2μs. This

allows it to outperform ceramic resonators and crystals requiring much longer start-up times.

May 22, 2006

Features

POWER MANAGEMENT

Description

Master HFDCO oscillator which can be programmed to

between 8MHz and 33.5MHz with 2kHz resolution

A 32.768kHz crystal oscillator with 5-bit programma-

ble padding capacitance giving a frequency adjust-

ment resolution of 4ppm

Two clock outputs, each of which can be powered inde

pendently from V

in-phase or in complementary mode

96-bit electrically programmable non-volatile fuse

memory array

7-bit programmable threshold reset comparator (VBO)

between 1.7V and 4V with 24mV resolution

Programmable reset duration between 6ms and 5.3

seconds

Less than 10μA standby current and less than 12mA

maximum operating current (excluding LDO load)

with I

General-purpose 8-bit DAC and Comparator

General-purpose PWM & PDM output

Programmable watchdog counter with a 7.8ms

resolution up to 8 seconds delay

An internal oscillator which is fuse-calibrated to

provide a 32.768kHz clock source, accuracy is better

than ±3% over temperature and supply voltage

C interface with 3-bit fuse-settable address complies

C fast mode speciﬁ cation

or V

BAK

and can operate either

Covered by United States Patent 6,903,986

Semtech, the Semtech logo, MicroBuddy, μBuddy, and μB are marks

of Semtech Corporation. All other marks belong to their respective

owners.

Year 2099

Battery backup facility, which maintains register con-

tents less than 2μA consumption

supply (V

output (INT)

on PWM pin

regulation control

scratchpad

Periodic interrupt timer (PIT) with a 30μs resolution

up to 36 hours

Real time clock with 1/256 second resolution up to

Spread spectrum option on the output clock

1.7V to 5.5V operating range on the main V

0.9V to 5.5V operating range on the battery backup

Edge-triggered, level-sensitive, and toggling interrupt

General-purpose I/O option on the interrupt pin (INT)

Low power, low dropout voltage regulator (LDO) output

Switched mode boost, bootstrap boost, and buck

56 bytes of control registers including a 9-byte

Small 3mm x 3mm 16-lead MLP package

BAK

)

Supervisory IC with I

Interface and PWM

www.semtech.com

SH3100

supply

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