Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

Preview PDF HTML

74F85 Datasheet(PDF) 4 Page - NXP Semiconductors

Part # 74F85
Description  4-bit magnitude comparator
PDF  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74F85 Datasheet(HTML) 4 Page - NXP Semiconductors

  74F85 Datasheet HTML 1Page - NXP Semiconductors 74F85 Datasheet HTML 2Page - NXP Semiconductors 74F85 Datasheet HTML 3Page - NXP Semiconductors 74F85 Datasheet HTML 4Page - NXP Semiconductors 74F85 Datasheet HTML 5Page - NXP Semiconductors 74F85 Datasheet HTML 6Page - NXP Semiconductors 74F85 Datasheet HTML 7Page - NXP Semiconductors 74F85 Datasheet HTML 8Page - NXP Semiconductors 74F85 Datasheet HTML 9Page - NXP Semiconductors Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 10 page
background image
Philips Semiconductors
Product specification
74F85
4-bit magnitude comparator
September 27, 1994
4
APPLICATION
B23
A23
B22
A22
B21
A21
B20
A20
B19
L
A19
INPUTS
(LSB)
B3
A3
B2
A2
B1
A1
B0
A0
IA<B
IA=B
IA>B
A<B
A=B
A>B
NC
B18
A18
B17
A17
B16
A16
B15
A15
B14
L
A14
B3
A3
B2
A2
B1
A1
B0
A0
IA<B
IA=B
IA>B
A<B
A=B
A>B
NC
B13
A13
B12
A12
B11
A11
B10
A10
B9
L
A9
B3
A3
B2
A2
B1
A1
B0
A0
IA<B
IA=B
IA>B
A<B
A=B
A>B
NC
B8
A8
B7
A7
B6
A6
B5
A5
B4
L
A4
B3
A3
B2
A2
B1
A1
B0
A0
IA<B
IA=B
IA>B
A<B
A=B
A>B
NC
B3
A3
B2
A2
B1
A1
B0
A0
H
(LSB)
B3
A3
B2
A2
B1
A1
B0
A0
IA<B
IA=B
IA>B
A<B
A=B
A>B
B3
A3
B2
A2
B1
A1
B0
A0
A<B
A=B
A>B
A<B
A=B
A>B
OUTPUTS
L
L
SF00079
Figure 1. Comparison of Two 24-Bit Words
The parallel expansion scheme shown in Figure 1 demonstrates the
most efficient general use of these comparators. The expansion
inputs can be used as a fifth input bit position except on the least
significant device, which must be connected as in the serial scheme.
The expansion inputs used by labeling IA>B as an “A” input, IA<B as
a “B” input and setting IA=B = Low. The 74F85 can be used as a 5-bit
comparator only when the outputs are used to drive the (A0–A3) and
(B0–B3) inputs of another 74F85 device. The parallel technique can
be expanded to any number of bits as shown in Table 1.
Table 1.
WORD LENGTH
NUMBER OF
PACKAGES
TYPICAL SPEEDS
74F
1–4 bits
1
12ns
5–24 bits
2–6
22ns
25–120 bits
8–31
34ns



Html Pages

1 2 3 4 5 6 7 8 9 10


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com