D43256BGU
Description
The µPD43256B is a high speed, low power, and 262, 144 bits (32,768 words by 8 bits) CMOS static RAM. Battery backup is available (L, LL, A, and B versions). And A and B versions are wide voltage operations. The µPD43256B is packed in 28-pin plastic DIP, 28-pin plastic SOP and 28-pin plastic TSOP (I).
Features
- 32,768 words by 8 bits organization
- Fast access time: 70, 85, 100, 120, 150 ns (MAX.)
- Wide voltage range (A version: VCC = 3.0 to 5.5 V, B version: VCC = 2.7 to 5.5 V)
- 2 V data retention
- OE input for easy application
Operating supply voltage V 4.5 to 5.5 Operating temperature °C 0 to 70 Standby supply current µA (MAX.) 50 15 3.0 to 5.5 2.7 to 5.5 Data retention supply current Note 1 µA (MAX.) 3 2
Part number
Access time ns (MAX.) 70, 85 70, 85 85, 100Note 2, 120Note 2
µPD43256B-L µPD43256B-LL µPD43256B-A µPD43256B-BNote 2
100, 120, 150
Notes 1. TA ≤ 40 ˚C, VCC = 3 V 2. Access time : 85 ns (MAX.) (VCC = 4.5 to 5.5 V)
Version X and P
This data sheet can...
