4585.yaml

---
description: "4-bit magnitude comparator"
package:     DIP
pincount:    16
family:      "4000"
datasheet:   "http://www.standardics.nxp.com/products/hef/datasheet/hef4585b.pdf"
pins:
  - num:  1
    sym:  B__2
    desc: word B input
  - num:  2
    sym:  A__2
    desc: word A input
  - num:  3
    sym:  Q__A=B
    desc: A = B output
  - num:  4
    sym:  I__A>B
    desc: A > B expansion input
  - num:  5
    sym:  I__A<B
    desc: A < B expansion input
  - num:  6
    sym:  I__A=B
    desc: A = B expansion input
  - num:  7
    sym:  A__1
    desc: word A input
  - num:  8
    sym:  GND
    desc: ground
  - num:  9
    sym:  B__1
    desc: word B input
  - num:  10
    sym:  A__0
    desc: word A input
  - num:  11
    sym:  B__0
    desc: word B input
  - num:  12
    sym:  Q__A<B
    desc: A < B output
  - num:  13
    sym:  Q__A>B
    desc: A > B output
  - num:  14
    sym:  B__3
    desc: word B input
  - num:  15
    sym:  A__3
    desc: word A input
  - num:  16
    sym:  Vcc
    desc: supply voltage
notes:
  - The least significant (or only) comparator in a chain should have I__A=B and I__A>B tied high and I__A<B tied low.
  - To compare more than 4 bits, connect Q__A<B and Q__A=B to the inputs of the next significant comparator. I__A>B of the next significant comparator should be tied high.
...