32c408b Maxwell Technologies, 32c408b Datasheet

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32c408b

Manufacturer Part Number
32c408b
Description
4 Megabit 512k X 8-bit Sram
Manufacturer
Maxwell Technologies
Datasheet
F
• 512k x 8-bit CMOS architecture
• R
• Total dose hardness:
• Single event effect:
• Package:
• Fast propagation time:
• Single 5V + 10% power supply
• Low power dissipation:
• TTL compatible inputs and outputs
• Fully static operation
• Three state outputs
(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
I/O3
I/O4
I/O1
I/O2
WE
CS
Vcc
Vss
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
EATURES
ation
- > 100 krad (Si), depending upon space mission
- SEL
- SEU
- SEU saturated cross section: 6E-9 cm
-36 pin R
-20, 25, 30 ns maximum access time
- Standby: 60mA (TTL); 10mA (CMOS)
- Operating: 180 mA (20 ns); 170 mA (25 ns); 160 mA (30
- No clock or refresh required
ns)
AD
-P
TH
AK
TH
1
18
: > 68 MeV/mg/cm
® technology hardened against natural space radi-
: < 3MeV/mg/cm
AD
32C408B
-P
:
AK
® flat pack
36
19
2
2
I/O8
I/O7
I/O6
I/O5
A18
A17
A16
A15
Vss
Vcc
A14
A13
A12
A11
A10
OE
NC
NC
2
/bit
DQ0
DQ7
WE
A13
A12
A11
A10
OE
A9
A8
A7
A6
A5
A4
CS
05.02.02 Rev 7
D
Maxwell Technologies’ 32C408B high-speed 4 Megabit SRAM
microcircuit features a greater than 100 krad (Si) total dose
tolerance, depending upon space mission. Using R
packaging technology, the 32C408B realizes higher density,
higher performance and lower power consumption, and is well
suited for high-speed system application. Its fully static design
eliminates the need for external clocks, while the CMOS cir-
cuitry reduces power consumption and provides higher reli-
ability. The 32C408B is equipped with eight common input/
output lines, chip select and output enable, allowing for
greater system flexibility and eliminating bus contention.
Maxwell Technologies' patented R
ogy incorporates radiation shielding in the microcircuit pack-
age. In a GEO orbit, R
100 krad (Si) total radiation dose tolerance; dependent upon
space mission. The patented radiation-hardened R
technology incorporates radiation shielding in the microcircuit
package. It eliminates the need for box shielding while provid-
ing the required radiation shielding for a lifetime in orbit or a
space mission. This product is available with packaging and
screening up to Class S.
DECODER
CONTROL
4 Megabit (512K x 8-Bit) SRAM
INPUT
ESCRIPTION
DATA
ROW
All data sheets are subject to change without notice
Logic Diagram
:
A18
1024 ROWS x 4096 COLUMNS
AD
A17
-P
MEMORY MATRIX
AK
A16
COLUMN DECODER
can provides true greater than
COLUMN I/O
A15
AD
-P
A14
©2002 Maxwell Technologies
32C408B
AK
A3
packaging technol-
A2
All rights reserved.
A1
AD
A0
AD
-P
-P
DQ0
DQ7
AK
AK
®
1

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32c408b Summary of contents

Page 1

... CMOS cir- cuitry reduces power consumption and provides higher reli- 2 /bit ability. The 32C408B is equipped with eight common input/ output lines, chip select and output enable, allowing for greater system flexibility and eliminating bus contention. Maxwell Technologies' patented R ogy incorporates radiation shielding in the microcircuit pack- age ...

Page 2

... Output Capacitance I/O 1. Guaranteed by Design 1. 32C408B A M ABLE BSOLUTE AXIMUM S YMBOL 32C408B R O ECOMMENDED PERATING S YMBOL 32C408B DC E LECTRICAL =5V +/- 10 -55 +1‘25C NLESS YMBOL UBGROUPS WE ...

Page 3

... Output Disable to Output in High-Z -20 -25 -30 Output Hold from Address Change -20 -25 -30 Chip Select to Power Up Time -20 -25 -30 Chip Select to Power Down Time -20 -25 -30 4. 32C408B AC C HARACTERISTICS FOR =5V +/- 10 -55 +1‘25C NLESS YMBOL UBGROUPS 10, 11 ...

Page 4

... Write to Output in High-Z -20 -25 - 32408B F D ABLE UNCTIONAL OE M ODE X Not Select H Output Disable L Read X Write 6. 32C408B AC C HARACTERISTICS FOR =5V +/- 10 -55 +1‘25C NLESS YMBOL UBGROUPS 10, 11 ...

Page 5

... Write Pulse Width(OE Low) -20 -25 -30 Data to Write Time Overlap -20 -25 -30 End Write to Output Low-Z 1 -20 -25 -30 Data Hold from Write Time -20 -25 -30 F IGURE 6. 32C408B AC C HARACTERISTICS FOR =5V +/- 10 -55 +1‘25C NLESS YMBOL UBGROUPS t 9, 10, 11 WP1 t 9, 10, 11 ...

Page 6

... IGURE IMING AVEFORM AVEFORM OF RITE YCLE YCLE ( EAD DDRESS ONTROLLED All data sheets are subject to change without notice 05.02.02 Rev 7 32C408B ( IXED is measured from beginning ©2002 Maxwell Technologies All rights reserved ...

Page 7

... YCLE ( IMING AVEFORM OF EAD is less than t both for a given device and from device to device. HZ(max) LZ(min SRAM EAVY ON ROSS All data sheets are subject to change without notice 05.02.02 Rev 7 32C408B ( ECTION ©2002 Maxwell Technologies All rights reserved ...

Page 8

... Megabit (512K x 8-Bit) SRAM F 6. SRAM P IGURE SEU ROTON ROSS ECTION TATIC All data sheets are subject to change without notice 05.02.02 Rev 7 32C408B 8 ©2002 Maxwell Technologies All rights reserved. ...

Page 9

... BSC 0.390 0.400 0.088 0.098 0.005 0.032 36 F36-01 Note: All dimensions in inches All data sheets are subject to change without notice 05.02.02 Rev 7 32C408B M AX 0.148 0.019 0.012 0.940 0.652 0.690 -- -- 0.410 0.108 -- 9 ©2002 Maxwell Technologies All rights reserved. ...

Page 10

... Any claim against Maxwell Technologies must be made within 90 days from the date of shipment from Maxwell Tech- nologies. Maxwell Technologies’ liability shall be limited to replacement of defective parts. All data sheets are subject to change without notice 05.02.02 Rev 7 32C408B 10 ©2002 Maxwell Technologies All rights reserved. ...

Page 11

... Megabit (512K x 8-Bit) SRAM Product Ordering Options Model Number 32C408B -XX Feature Access Time Screening Flow Package Radiation Feature Base Product Nomenclature All data sheets are subject to change without notice 05.02.02 Rev 7 32C408B Option Details Monolithic S = Maxwell Class Maxwell Class Engineering (testing @ +25° ...

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