NEC单片机UPD43256AC-12L
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. 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) (8 x 13.4 mm)
Features
- 32,768 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)
- Low VCC data retention: 2.0 V (MIN.)
- /OE input for easy application




Recommended Soldering Conditions
Please consult with our sales offices for soldering conditions of the μPD43256B.
Types of Surface Mount Device
μPD43256BGU-xxL : 28-pin PLASTIC SOP (11.43 mm (450)) μPD43256BGU-xxLL : 28-pin PLASTIC SOP (11.43 mm (450)) μPD43256BGU-Axx : 28-pin PLASTIC SOP (11.43 mm (450)) μPD43256BGU-Bxx : 28-pin PLASTIC SOP (11.43 mm (450))
μPD43256BGW-xxLL-9JL : 28-pin PLASTIC TSOP (I) (8x13.4) (Normal bent) μPD43256BGW-xxLL-9KL : 28-pin PLASTIC TSOP (I) (8x13.4) (Reverse bent) μPD43256BGW-Axx-9JL : 28-pin PLASTIC TSOP (I) (8x13.4) (Normal bent) μPD43256BGW-Axx-9KL : 28-pin PLASTIC TSOP (I) (8x13.4) (Reverse bent) μPD43256BGW-Bxx-9JL : 28-pin PLASTIC TSOP (I) (8x13.4) (Normal bent) μPD43256BGW-Bxx-9KL : 28-pin PLASTIC TSOP (I) (8x13.4) (Reverse bent) μPD43256BGU-xxL-A : 28-pin PLASTIC SOP (11.43 mm (450)) μPD43256BGU-xxLL-A : 28-pin PLASTIC SOP (11.43 mm (450)) μPD43256BGU-Axx-A : 28-pin PLASTIC SOP (11.43 mm (450)) μPD43256BGU-Bxx-A
: 28-pin PLASTIC SOP (11.43 mm (450))
μPD43256BGW-xxLL-9JL-A : 28-pin PLASTIC TSOP (I) (8x13.4) (Normal bent) μPD43256BGW-xxLL-9KL-A : 28-pin PLASTIC TSOP (I) (8x13.4) (Reverse bent) μPD43256BGW-Axx-9JL-A : 28-pin PLASTIC TSOP (I) (8x13.4) (Normal bent) μPD43256BGW-Axx-9KL-A : 28-pin PLASTIC TSOP (I) (8x13.4) (Reverse bent) μPD43256BGW-Bxx-9JL-A : 28-pin PLASTIC TSOP (I) (8x13.4) (Normal bent)

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