82802AB Datasheet, PDF (16/53 Pages) Intel Corporation – Firmware Hub (FWH)

Intel^® 82802AB/AC Firmware Hub
R
Symbol
V_PP
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