W27C4096

Preliminary W27C4096 256K × 16 ELECTRICALLY ERASABLE EPROM GENERAL DESCRIPTION The W27C4096 is a high speed, low power Electrically Erasable and Programmable Read Only Memory organized as 262144 × 16 bits that operates on a single 5 volt power supply. The W27C4096 provides an electrical chip erase function. FEATURES High speed access time: 120/150 nS (max.) Read operating current: 30 mA (max.) Erase/Programming operating current 30 mA (max.) Standby current: 100 µA (max.) Single 5V power supply +14V erase/+12V programming voltage Fully static operation All inputs and outputs directly TTL/CMOS compatible Three-state outputs Available packages: 40-pin 600 mil DIP, TSOP and 44-pin PLCC PIN CONFIGURATIONS VPP CE Q15 Q14 Q13 Q12 Q11 Q10 Q9 Q8 GND Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0 OE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 BLOCK DIAGRAM VDD A17 A16 A15 A14 A13 A12 A11 A10 A9 GND A8 A7 A6 A5 A4 A3 A2 A1 A0 Q0 CE OE CONTROL OUTPUT BUFFER . . Q15 40-pin DIP A0 . . A17 DECODER CORE ARRAY Q 1 3 6 Q12 Q11 Q10 Q9 Q8 GND NC Q7 Q6 Q5 Q4 7 8 9 10 11 12 13 14 15 16 17 18 Q 3 Q 1 4 5 Q 1 5 4 / C E V p p 2 N C 1 V C C A 1 7 A 1 6 42 A 1 5 41 A 1 4 40 39 38 37 36 A13 A12 A11 A10 A9 GND NC A8 A7 A6 A5 VCC GND VPP 3 44 43 44-pin PLCC 35 34 33 32 31 30 29 PIN DESCRIPTION SYMBOL A0−A17 40 39 38 37 36 35 34 19 Q 2 20 21 Q 1 22 23 24 25 N C A 0 26 27 A 2 A 3 28 Q 0 / O E A 1 A 4 D...