Intel
£
Advanced+ Boot Block Flash Memory (C3)
34 Datasheet
6.6 Power Supply Decoupling
Flash memory power-switching characteristics require careful device decoupling. System
designers should consider the following three supply current issues:
• Standby current levels (I
CCS
)
• Read current levels (I
CCR
)
• Transient peaks produced by falling and rising edges of CE#.
Transient current magnitudes depend on the device outputs’ capacitive and inductive loading. Two-
line control and proper decoupling capacitor selection will suppress these transient voltage peaks.
Each flash device should have a 0.1 µF ceramic capacitor connected between each V
CC
and GND,
and between its V
PP
and VSS. These high- frequency, inherently low-inductance capacitors should
be placed as close as possible to the package leads.
7.0 Thermal and DC Characteristics
7.1 Absolute Maximum Ratings
Warning: Stressing the device beyond the “Absolute Maximum Ratings” may cause permanent damage.
These are stress ratings only. Operation beyond the “Operating Conditions” is not recommended,
and extended exposure beyond the “Operating Conditions” may affect device reliability.
.
NOTICE: Specifications are subject to change without notice. Verify with your local Intel Sales office that you have
the latest datasheet before finalizing a design
.
Parameter Maximum Rating Notes
Extended Operating Temperature
During Read –40 °C to +85 °C
During Block Erase and Program –40 °C to +85 °C
Temperature under Bias –40 °C to +85 °C
Storage Temperature –65 °C to +125 °C
Voltage On Any Pin (except V
CC
and V
PP
) with Respect to GND –0.5 V to +3.7 V 1
V
PP
Voltage (for Block Erase and Program) with Respect to GND –0.5 V to +13.5 V 1,2,3
V
CC
and V
CCQ
Supply Voltage with Respect to GND –0.2 V to +3.6 V
Output Short Circuit Current 100 mA 4
NOTES:
1. Minimum DC voltage is –0.5 V on input/output pins. During transitions, this level may
undershoot to –2.0 V for periods <20 ns. Maximum DC voltage on input/output pins is V
CC
+0.5 V which, during transitions, may overshoot to V
CC
+2.0 V for periods <20 ns.
2. Maximum DC voltage on V
PP
may overshoot to +14.0 V for periods <20 ns.
3. V
PP
Program voltage is normally 1.65 V–3.6 V. Connection to a 11.4 V–12.6 V supply can be
done for a maximum of 1000 cycles on the main blocks and 2500 cycles on the parameter
blocks during program/erase. V
PP
may be connected to 12 V for a total of 80 hours maximum.
4. Output shorted for no more than one second. No more than one output shorted at a time.
