INTEL82802AB データシートの表示（PDF） - Intel

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INTEL82802AB

Intel® 82802AB/AC Firmware Hub (FWH)

Intel 

Intel® 82802AB/AC Firmware Hub

R

Symbol

VPP

VCC

GND

VCCa

GNDa

RFU

NC

Ry/By#

Type

PWR

PWR

PWR

PWR

PWR

0

Interface

Name and Function

Intel

FWH

A/A Mux

Block Erase/Program Power Supply. For erasing array blocks or

programming data. VPP = 3.3 V or 12 V VPP. With VPP ≤ VPPLK,

X

X

memory contents cannot be altered. Attempting a block erase or

program with an invalid VPP (see DC Characteristics) will produce

spurious results and should not be attempted. VPP may only be held

at 12 V for 80 hours over the lifetime of the device.

Device Power Supply. Internal detection automatically configures

the device for optimized read performance. Do not float any power

X

X

pins. With VCC ≤ VLKO, all attempts to write to flash memory are

inhibited. Device operations at invalid VCC voltages (see DC

Characteristics) produce spurious results and should not be

attempted.

X

X

Ground. Do not float any ground pins.

X

X

Analog Power Supply. This supply should share the same system

supply as VCC.

X

X

Analog Ground. Should be tied to same plane as GND.

Reserved For Future Use. These pins are reserved for future

generations of this product. They may be left disconnected or driven.

X

If they are driven, the voltage levels should satisfy VIH and VIL

requirements.

A/A Mux = DQ[7:4]

No Connect. Pin may be driven or floated. If it is driven, the voltage

X

X

levels should satisfy VIH and VIL. No connects appear only on the

40ld TSOP package.

Ready/Busy. Valid only in A/A Mux Mode. This output pin is a

X

reflection of bit 7 in the Status Register. This pin is used to

determine block erase or program completion.

16

Datasheet

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