GE28F320C3BD70 Intel, GE28F320C3BD70 Datasheet - Page 20

• Manufacturer Part Number: GE28F320C3BD70
• Manufacturer: Intel

Specifications of GE28F320C3BD70

• Density: 32Mb
• Access Time (max): 70ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 21b
• Operating Supply Voltage (typ): 3/3.3V
• Operating Temp Range: -40C to 85C
• Package Type: VFBGA
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 16b
• Number Of Words: 2M
• Supply Current: 18mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Not Compliant

Table 5:
Datasheet
20
Symbol
VCCQ
WE#
WP#
GND
VCC
VPP
DU
NC
Signal Descriptions
Input/
Power
Power
Power
Power
Type
Input
Input
—
—
WRITE ENABLE: Active-low input. WE# controls writes to the device. Address and data are latched on
the rising edge of the WE# pulse.
WRITE PROTECT: Active-low input.
When WP# is a logic low, the lock-down mechanism is enabled and blocks marked lock-down cannot be
unlocked through software.
When 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 WP# goes low, any blocks
previously marked lock-down revert to the lock-down state.
See
PROGRAM/ERASE Power Supply: Operates as an input at logic levels to control complete device
protection. Supplies power for accelerated Program and Erase operations in 12 V ± 5% range. Do not
leave this pin floating.
Lower VPP ≤ VPPLK to protect all contents against Program and Erase commands.
Set VPP = VCC for in-system Read, Program and Erase operations. In this configuration, VPP can drop
as low as 1.65 V to allow for resistor or diode drop from the system supply.
Apply VPP to 12 V ± 5% for faster program and erase in a production environment. Applying 12 V ± 5%
to VPP can only be done for a maximum of 1000 cycles on the main blocks and 2500 cycles on the boot
blocks. VPP can be connected to 12 V for a total of 80 hours maximum. See
on VPP voltage configurations.
DEVICE CORE Power Supply: Supplies power for device operations.
OUTPUT Power Supply: Output-driven source voltage. This ball can be tied directly to V
operating within V
Ground: For all internal circuitry. All ground inputs must be connected.
Do Not Use: Do not use this ball. This ball must not be connected to any power supplies, signals or
other balls,; it must be left floating.
No Connect
Section 11.0, “Security Modes” on page 48
CC
range.
Description
for details on block locking.
Section 11.6
CC
C3 Discrete
March 2008
for details
290645-24
if