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Fairchild Semiconductor Electronic Components Datasheet

CD4514BC Datasheet

4-Bit Latched/4-to-16 Line Decoders

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October 1987
Revised January 2004
CD4514BC CD4515BC
4-Bit Latched/4-to-16 Line Decoders
General Description
The CD4514BC and CD4515BC are 4-to-16 line decoders
with latched inputs implemented with complementary MOS
(CMOS) circuits constructed with N- and P-channel
enhancement mode transistors. These circuits are prima-
rily used in decoding applications where low power dissipa-
tion and/or high noise immunity is required.
The CD4514BC (output active high option) presents a logi-
cal “1” at the selected output, whereas the CD4515BC pre-
sents a logical “0” at the selected output. The input latches
are R–S type flip-flops, which hold the last input data pre-
sented prior to the strobe transition from “1” to “0”. This
input data is decoded and the corresponding output is acti-
vated. An output inhibit line is also available.
Features
s Wide supply voltage range: 3.0V to 15V
s High noise immunity: 0.45 VDD (typ.)
s Low power TTL: fan out of 2
compatibility: driving 74L
s Low quiescent power dissipation:
0.025 µW/package @ 5.0 VDC
s Single supply operation
s Input impedance = 1012typically
s Plug-in replacement for MC14514, MC14515
Ordering Code:
Order Number Package Number
Package Diagram
CD4514BCWM
M24B
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
CD4514BCN
N24A
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-011, 0.600" Wide
CD4515BCWM
(Note 1)
M24B
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
CD4515BCN
N24A
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-011, 0.600" Wide
Note 1: Devices also available in Tape and Reel. Specify by appending suffix letter Xto the ordering code.
Connection Diagram
Top View
© 2004 Fairchild Semiconductor Corporation DS005994
www.fairchildsemi.com


Fairchild Semiconductor Electronic Components Datasheet

CD4514BC Datasheet

4-Bit Latched/4-to-16 Line Decoders

No Preview Available !

Truth Table
Inhibit
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
X = Dont Care
Logic Diagram
Decode Truth Table (Strobe = 1)
Data Inputs
Selected Output
DCBA
CD4514 = Logic 1
CD4515 = Logic 0
0000
S0
0001
S1
0010
S2
0011
S3
0100
S4
0101
S5
0110
S6
0111
S7
1000
S8
1001
S9
1010
S10
1011
S11
1100
S12
1101
S13
1110
S14
1111
S15
X X X X All Outputs = 0, CD4514
All Outputs = 1, CD4515
www.fairchildsemi.com
2


Part Number CD4514BC
Description 4-Bit Latched/4-to-16 Line Decoders
Maker Fairchild Semiconductor
PDF Download

CD4514BC Datasheet PDF






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