3 Volt Intel® Advanced+ Boot Block Flash Memory Stacked-CSP Family
Table 2. 3 Volt Intel® Advanced+ Boot Block Stacked-CSP Ball Descriptions (Sheet 2 of 2)
Symbol
Type
Name and Function
FLASH WRITE PROTECT: Controls the lock-down function of the flexible Locking feature.
When F-WP# is a logic low, the lock-down mechanism is enabled and blocks marked lock-
down cannot be unlocked through software.
F-WP#
INPUT
When F-WP# is logic high, the lock-down mechanism is disabled and blocks previously
locked-down are now locked and can be unlocked and locked through software. After F-WP# goes
low, any blocks previously marked lock-down revert to that state.
See Section 7.0, “System Design Considerations” on page 41 for details on block locking.
FLASH POWER SUPPLY: [2.7 V–3.3 V] Supplies power for device core operations.
FLASH I/O POWER SUPPLY: [2.7 V–3.3 V] Supplies power for device I/O operations.
SRAM POWER SUPPLY: [2.7 V–3.3 V] Supplies power for device operations.
F-VCC
SUPPLY
SUPPLY
F-VCCQ
S-VCC
SUPPLY
See Section 7.2.2, “F-VCC, F-VPP and F-RP# Transition” on page 42 for details of power
connections.
FLASH PROGRAM/ERASE POWER SUPPLY: [1.65 V–3.3 V or 11.4 V–12.6 V] Operates as an
input at logic levels to control complete flash protection. Supplies power for accelerated flash
program and erase operations in 12 V ± 5% range. This ball cannot be left floating.
Lower F-V ≤ V
, to protect all contents against Program and Erase commands.
PP
PPLK
Set F-V = F-V for in-system read, program and erase operations. In this configuration,
PP
CC
INPUT /
SUPPLY
F-VPP
F-V can drop as low as 1.65 V to allow for resistor or diode drop from the system supply. Note
PP
that if F-V is driven by a logic signal, V
1.65 V. That is, F-V must remain above 1.65 V to
PP
IH =
PP
perform in-system flash modifications.
Raise F-V to 12 V ± 5% for faster program and erase in a production environment. Applying
PP
12 V ± 5% to F-V can only be done for a maximum of 1000 cycles on the main blocks and 2500
PP
cycles on the parameter blocks. F-V may be connected to 12 V for a total of 80 hours maximum.
PP
F-VSS
S-VSS
NC
SUPPLY
SUPPLY
FLASH GROUND: For all internal circuitry. All ground inputs must be connected.
SRAM GROUND: For all internal circuitry. All ground inputs must be connected.
NOT CONNECTED: Internally disconnected within the device.
10
Datasheet
INTEL [ INTEL ]
