HC705V8GRSSLASHD datasheet(24/172 Pages) NXP

Part #	HC705V8GRS/D

Description	The Motorola MC68HC705V8 microcontroller is a custom HC05 based MCU featuring a Message Data Link Controller (MDLC) module and on-chip power regulation.

PDF	172 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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24 / 172 page

SECTION 1: GENERAL DESCRIPTION

Page 13

MC68HC705V8 Specification Rev. 2.1

1.5.17

VIGN

The VIGN pin is used by the internal voltage regulator power moding circuitry to indicate that

the regulator should power up. Its state is reflected in the IGNS bit of the MISC register.

The input voltage levels on this pin are ratioed to the voltage on VBATT. See the electrical

specifications. A smaller secondary regulator remains alive to power the VIGN pin logic

when the primary voltage regulator is powered down, allowing the power moding logic to

recognize and latch a rising edge on this pin and re-enable the primary regulator (power-

up). See SECTION 7

POWER SUPPLY AND REGULATION for a more detailed

description.

The VIGN pin has no function when the option to disable the on-chip voltage regulator is

selected and should be tied low.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

HC705V8GRS/D Datasheet(PDF) 24 Page - NXP Semiconductors