28LV011 Datasheet, PDF (1/19 Pages) Maxwell Technologies – 3.3V 1 Megabit (128K x 8-Bit) EEPROM

V_CC
V_SS
RES
OE
CE
WE
RES
28LV011
A0
A6
A7
A16
FEATURES:
• 3.3V low voltage operation 128K x 8 Bit EEPROM
• RAD-PAK® radiation-hardened against natural space
radiation
• Total dose hardness:
- > 100 krad (Si), depending upon space mission
• Excellent Single Event Effects:
- SEL_TH > 84 MeV/mg/cm²
- SEU_TH > 37 Mev/mg/cm² (read mode)
- SEU saturated cross section = 3E-6 cm² (read mode)
- SEU_TH = 11.4 Mev/mg/cm² (write mode)
- SEU saturated cross section = 5E-3 cm² (write mode)
with hard errors
• Package:
- 32 Pin RAD-PAK® flat pack
- 32 Pin RAD-PAK® DIP
- JEDEC-approved byte-wide pinout
• Address Access Time:
- 200, 250 ns Access times available
• High endurance:
- 10,000 erase/write (in Page Mode), 10-year data
retention
• Page write mode:
- 1 to 128 bytes
• Automatic programming
- 15 ms automatic page/byte write
• Low power dissipation
- 20 mW/MHz active current (typ.)
- 72 µ W standby (maximum)
28LV011
3.3V 1 Megabit (128K x 8-Bit)
EEPROM
High Voltage
Generator
I/O0
I/O7 RDY/Busy
Control Logic Timing
I/O Buffer and
Input Latch
Address
Buffer and
Latch
Y Decoder
X Decoder
Y Gating
Memory Array
Logic Diagram
DESCRIPTION:
Data Latch
Maxwell Technologies’ 28LV011 high density, 3.3V, 1 Megabit
EEPROM microcircuit features a greater than 100 krad (Si)
total dose tolerance, depending upon space mission. The
28LV011 is capable of in-system electrical Byte and Page pro-
grammability. It has a 128-Byte Page Programming function to
make its erase and write operations faster. It also features
Data Polling and a Ready/Busy signal to indicate the comple-
tion of erase and programming operations. In the 28LV011,
hardware data protection is provided with the RES pin, in addi-
tion to noise protection on the WE signal and write inhibit on
power on and off. Meanwhile, software data protection is
implemented using the JEDEC-optional Standard algorithm.
The 28LV011 is designed for high reliability in the most
demanding space applications.
Maxwell Technologies' patented RAD-PAK® packaging technol-
ogy incorporates radiation shielding in the microcircuit pack-
age. It eliminates the need for box shielding while providing
the required radiation shielding for a lifetime in orbit or space
mission. In a GEO orbit, RAD-PAK® provides greater than 100
krad (Si) radiation dose tolerance. This product is available
with screening up to Class S.
Note:The recommended form of data protection during power
on/off is to hold the RES pin to V_SS during power up and power
down. This may be accompanied by connecting the RES pin
to the CPU reset line. Failure to provide adequate protection
during power on/off may result in lost or modified data.
05.28.02 Rev 2
[phone] - Fax: [phone]- www.maxwell.com
All data sheets are subject to change without notice 1
©2002 Maxwell Technologies
All rights reserved.