MT28F321P20 Datasheet, PDF (23/35 Pages) Micron Technology – FLASH MEMORY

PRELIMINARY
2 MEG x 16
PAGE FLASH MEMORY
ABSOLUTE MAXIMUM RATINGS*
Voltage to Any Ball Except VCC and VPP
with Respect to VSS ....................... -0.5V to +2.45V
VPP Voltage (for BLOCK ERASE and PROGRAM
with Respect to VSS) ................. -0.5V to +13.5V**
VCC and VCCQ Supply Voltage
with Respect to VSS ....................... -0.3V to +2.45V
Output Short Circuit Current ............................... 100mA
Operating Temperature Range ............ -40^oC to +85^oC
Storage Temperature Range ............... -55^oC to +125^oC
Soldering Cycle .......................................... 260^oC for 10s
*Stresses greater than those listed under “Absolute
Maximum Ratings” may cause permanent damage to
the device. This is a stress rating only and functional
operation of the device at these or any other conditions
above those indicated in the operational sections of
this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may
affect reliability.
**Maximum DC voltage on VPP may overshoot to +13.5V
for periods <20ns.
OPERATING CONDITIONS
PARAMETER
Operating temperature
VCC supply voltage (MT28F321P18)
VCC supply voltage (MT28F321P20)
I/O supply voltage (MT28F321P18)
I/O supply voltage (MT28F321P20)
VPP voltage
VPP in-factory programming voltage
Block erase cycling
VPP = VPP1
VPP = VPP2
SYMBOL
t_A
VCC
VCC
VCCQ
VCCQ
VPP1
VPP2
VPP1
VPP2
MIN
-40
1.70
1.80
1.70
1.80
0.9
11.4
–
–
MAX
+85
1.90
2.20
1.90
2.20
2.2
12.6
100,000
100
UNITS
o_C
V
V
V
V
V
V
Cycles
Cycles
NOTE
1
NOTE: 1. VPP = VPP2 is a maximum of 10 cumulative hours.
Figure 10
AC Input/Output Reference Waveform
VCC
Input VCC/2
VSS
Test Points
VCCQ/2 Output
AC test inputs are driven at VCC for a logic 1 and VSS for a logic 0. Input timing begins at VCC/2, and output timing ends
at VCCQ/2. Input rise and fall times (10% to 90%) < 5ns.
2 Meg x 16 Page Flash Memory
MT28F321P20_3.p65 – Rev. 3, Pub. 7/02
Figure 11
Output Load Circuit
VCC
14.5K
I/O
14.5K
VSS
30pF
23
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©2002, Micron Technology, Inc.