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UPD448012-X Datasheet(PDF) 1 Page - NEC

Part No. UPD448012-X
Description  8M-BIT CMOS STATIC RAM 512K-WORD BY 16-BIT EXTENDED TEMPERATURE OPERATION
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Maker  NEC [NEC]
Homepage  http://www.nec.com/
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UPD448012-X Datasheet(HTML) 1 Page - NEC

 
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The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
©
1999
MOS INTEGRATED CIRCUIT
µµµµPD448012-X
8M-BIT CMOS STATIC RAM
512K-WORD BY 16-BIT
EXTENDED TEMPERATURE OPERATION
Document No. M14466EJ5V0DS00 (5th edition)
Date Published July 2001 NS CP (K)
Printed in Japan
DATA SHEET
The mark 5
5
5
5 shows major revised points.
Description
The
µPD448012-X is a high speed, low power, 8,388,608 bits (524,288 words by 16 bits) CMOS static RAM.
The
µPD448012-X has two chip enable pins (/CE1, CE2) to extend the capacity.
The
µPD448012-X is packed in 48-pin PLASTIC TSOP (I) (Normal bent).
Features
• 524,288 words by 16 bits organization
• Fast access time: 55, 70, 85, 100, 120 ns (MAX.)
• Byte data control: /LB (I/O1 - I/O8), /UB (I/O9 - I/O16)
• Low voltage operation
(B version: VCC = 2.7 to 3.6 V, C version: VCC = 2.2 to 3.6 V)
• Low VCC data retention : 1.0 V (MIN.)
• Operating ambient temperature: TA = –25 to +85°C
• Output Enable input for easy application
• Two Chip Enable inputs: /CE1, CE2
Part number
Access time
Operating supply
Operating ambient
Supply current
ns (MAX.)
voltage
temperature
At operating
At standby
At data retention
V
°C
mA (MAX.)
µA (MAX.)
µA (MAX.)
µPD448012-BxxX
55, 70, 85, 100
2.7 to 3.6
−25 to +85
45
Note
15
6
µPD448012-CxxX
70, 85, 100, 120
2.2 to 3.6
45
Note Cycle time
≥ 70 ns,
µPD448012-B55X : 50 mA


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