Features

? High Voltage Type (20V Rating)

? Expansion to 8, 12, 16 . . .4N Bits by Cascading Units

? Medium Speed Operation

- Compares Two 4-Bit Words in 180ns (Typ.) at 10V

? 100 Tested for Quiescent Current at 20V

? Standardized Symmetrical Output Characteristics

? 5V, 10V and 15V Parametric Ratings

? Maximum Input Current of 1?A at 18V Over Full Package Temperature Range; 100nA at 18V and +25oC

? Noise Margin (Over Full Package/Temperature Range)

- 1V at VDD = 5V

- 2V at VDD = 10V

- 2.5V at VDD = 15V

? Meets All Requirements of JEDEC Tentative Standard

No. 13B, “Standard Specifications for Description of

‘B’ Series CMOS Devices”

Description

CD4585BMS is a 4-bit magnitude comparator designed for

use in computer and logic applications that require the comparison of two 4-bit words. This logic circuit determines

whether one 4-bit word (Binary or BCD) is “l(fā)ess than”, “equal

to” or “greater than” a second 4-bit word.

The CD4585BMS has eight comparing inputs (A3, B3,

through A0, B0), three outputs (A B) and three

cascading inputs (A B) that permit system

designers to expand the comparator function to 8, 12, 16 . .

.4N bits. When a single CD4585BMS is used, the cascading

inputs are connected as follows: (A < B) = low, (A = B) =

high, (A > B) = high.

Cascading thses units for comparision of more than 4 bits is

accomplished as shown in Figure 9.

The CD4585BMS is supplied in these 16-lead outline packages:

Braze Seal DIP H4T

Frit Seal DIP H1E

Ceramic Flatpack H6W