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79C2040RPFI-15 Datasheet

  • 79C2040RPFI-15

  • 20 Megabit (512K x 40-Bit) EEPROM MCM

  • 17頁

  • MAXWELL

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79C2040
20 Megabit (512K x 40-Bit)
EEPROM MCM
Logic Diagram
Memory
F
EATURES
:
512k x 40-bit EEPROM MCM
鈥?R
AD
-P
AK
廬 radiation-hardened against natural
鈥?space radiation
鈥?Total dose hardness:
- >100 krad (Si)
- Dependent upon orbit
鈥?Excellent Single event effects
- SEL
TH
> 120 MeV/mg/cm
2
- SEU > 90 MeV/mg/cm
2
read mode
- SEU = 18 MeV/mg/cm
2
write mode
鈥?High endurance
- 10,000 cycles/byte (Page Programming Mode)
- 10 year data retention
鈥?Page Write Mode: 128 Dword Page
鈥?High Speed:
- 150 and 200 ns maximum access times
鈥?Automatic programming
- 10 ms automatic Page/Dword write
鈥?Low power dissipation
- 375 mW/MHz active current
-3. 2 mW standby current
D
ESCRIPTION
:
Maxwell Technologies鈥?79C2040 multi-chip module (MCM)
memory features a greater than 100 krad (Si) total dose toler-
ance, dependent upon orbit. Using Maxwell Technologies鈥?pat-
ented radiation-hardened R
AD
-P
AK
廬 MCM packaging
technology, the 79C2040 is the first radiation-hardened 20
megabit MCM EEPROM for space application. The 79C2040
uses twenty 1 Megabit high speed CMOS die to yield a 20
megabit product. The 79C2040 is capable of in-system electri-
cal byte and page programmability. It has a 128 word page
programming function to make the erase and write operations
faster. It also features Data Polling and a Ready/Busy signal to
indicate the completion of erase and programming operations.
In the 79C2040, hardware data protection is provided with the
RES pin, in addition to noise protection on the WE signal and
write inhibit on power on and off. Software data protection is
implemented using the JEDEC optional standard algorithm.
Maxwell Technologies' patented R
AD
-P
AK
廬 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, R
AD
-P
AK
provides greater than 100
krad (Si) radiation dose tolerance. This product is available
with screening up to Maxwell Technologies self-defined Class
K
04.20.05Rev 1
All data sheets are subject to change without notice
1
(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
漏2005 Maxwell Technologies
All rights reserved.

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