UPD431000A Datasheet | NEC

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 ns (MAX.) Operating supply Operating ambient voltage V temperature °C 0 to 70 At operating m A (MAX.) 70 Supply current At standby At data retention µA (MAX.) 100 20 µA (MAX.) Note1 15 3 µPD431000A-xx L µPD431000A-xx LL µPD431000A-Axx µPD431000A-Bxx 70 70 Note2 70, 85 4.5 to 5.5 Note2 , 100 3.0 to 5.5 2.7 to 5.5 35 30 Note3 Note4 13 11 Note5 Note6 , 100, 120, 150 Notes 1. TA ≤ 40 °C 2. VCC = 4.5 to 5.5 V 3. 70 m A (VCC > 3.6 V) 4. 70 m A (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 µPD431000A Ordering Information Part number Package Access time ns (MAX.) Operating supply Operating ambient voltage V temperature °C 0 to 70 L version Remark µPD431000ACZ-70L µPD431000ACZ-85L µPD431000ACZ-70LL µPD431000ACZ-85LL µPD431000AGW-70L...