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27256 256K (32kb x 8) 200ns NMOS EPROM Datasheet

Photograph
27256-200 - 256K 200ns NMOS EPROM

Product Details

Features

  • Standard Type with UV Erasable Window
  • Reconditioned Unit, Erased and Ready to Program
  • Access Time 200ns
  • Limited Stock Available - End of Life Product

Pin Layout
27256 Pin Layout

Pin Description
Pin Number Description
1 Vpp - Programming Supply
2 A12 - Address Input
3 A7 - Address Input
4 A6 - Address Input
5 A5 - Address Input
6 A4 - Address Input
7 A3 - Address Input
8 A2 - Address Input
9 A1 - Address Input
10 A0 - Address Input
11 Q0 - Data Input
12 Q1 - Data Input
13 Q2 - Data Input
14 Vss - Ground
15 Q3 - Data Input
16 Q4 - Data Input
17 Q5 - Data Input
18 Q6 - Data Input
19 Q7 - Data Input
20 E - Chip Enable
21 A10 - Address Input
22 G - Output Enable
23 A11 - Address Input
24 A9 - Address Input
25 A8 - Address Input
26 A13 - Address Input
27 A14 - Address Pin
28 Vcc - Positive Power Supply
Dimensional Drawing
27256 IC Dimensional Drawing
27256 IC Dimensional Drawing

Technical Data

Datasheet

STMicroelectronics - Datasheet for 27256 27C64 Datasheet

Application Notes