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UPD431000ACZ-xxx fiches techniques PDF

NEC - 1M-BIT CMOS STATIC RAM 128K-WORD BY 8-BIT

Numéro de référence UPD431000ACZ-xxx
Description 1M-BIT CMOS STATIC RAM 128K-WORD BY 8-BIT
Fabricant NEC 
Logo NEC 





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UPD431000ACZ-xxx fiche technique
DATA SHEET
MOS INTEGRATED CIRCUIT
µ PD431000A
1M-BIT CMOS STATIC RAM
128K-WORD BY 8-BIT
Description
The µPD431000A is a high speed, low power, and 1,048,576 bits (131,072 words by 8 bits) CMOS static RAM.
The µPD431000A has two chip enable pins (/CE1, CE2) to extend the capacity. And battery backup is available. In
addition to this, A and B versions are low voltage operations.
The µPD431000A is packed in 32-pin PLASTIC DIP, 32-pin PLASTIC SOP and 32-pin PLASTIC TSOP (I) (8 × 13.4
mm) and (8 × 20 mm).
Features
131,072 words by 8 bits organization
Fast access time: 70, 85, 100, 120, 150 ns (MAX.)
Low voltage operation (A version: VCC = 3.0 to 5.5 V, B version: VCC = 2.7 to 5.5 V)
Operating ambient temperature: TA = 0 to 70 °C
Low VCC data retention: 2.0 V (MIN.)
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
V
temperature
°C
At operating
mA (MAX.)
At standby
µA (MAX.)
At data retention
µA (MAX.) Note1
µPD431000A-xxL
70, 85
4.5 to 5.5
0 to 70
70 100
15
µPD431000A-xxLL
µPD431000A-Axx
µPD431000A-Bxx
70 Note2, 100
70 Note2, 100, 120, 150
3.0 to 5.5
2.7 to 5.5
35 Note3
30 Note4
20
13 Note5
11 Note6
3
Notes 1. TA 40 °C
2. VCC = 4.5 to 5.5 V
3. 70 mA (VCC > 3.6 V)
4. 70 mA (VCC > 3.3 V)
5. 20 µA (VCC > 3.6 V)
6. 20 µA (VCC > 3.3 V)
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.
Document No. M11657EJBV0DS00 (11th edition)
Date Published April 2002 NS CP (K)
Printed in Japan
The mark 5 shows major revised points.
©
1990, 1993, 1995

PagesPages 30
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