CD54HC4514, CD74HC4514,
CD74HC4515
Data sheet acquired from Harris Semiconductor
SCHS280C
High-Speed CMOS Logic 4- to 16-Line
November 1997 - Revised July 2003
Decoder/Demultiplexer with Input Latches
Features
Description
• Multifunction Capability
The CD54HC4514, CD74HC4514, and CD74HC4515 are
high-speed silicon gate devices consisting of a 4-bit strobed
latch and a 4- to 16-line decoder. The selected output is
enabled by a low on the enable input (E). A high on E inhibits
selection of any output. Demultiplexing is accomplished by
- Binary to 1-of-16 Decoder
- 1-to-16 Line Demultiplexer
• Fanout (Over Temperature Range)
[ /Title
(CD74
HC451
4,
CD74
HC451
5)
/Sub-
ject
(High
Speed
CMOS
using the E input as the data input and the select inputs (A0-
A3) as addresses. This E input also serves as a chip select
when these devices are cascaded.
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
o
o
• Wide Operating Temperature Range . . . -55 C to 125 C
• Balanced Propagation Delay and Transition Times
When Latch Enable (LE) is high the output follows changes
in the inputs (see truth table). When LE is low the output is
isolated from changes in the input and remains at the level
(high for the 4514, low for the 4515) it had before the latches
were enabled. These devices, enhanced versions of the
equivalent CMOS types, can drive 10 LSTTL loads.
• Significant Power Reduction Compared to LSTTL
Logic ICs
• HC Types
- 2V to 6V Operation
Ordering Information
- High Noise Immunity: N = 30%, N = 30% of V
IL
IH
CC
at V
= 5V
CC
o
PART NUMBER
CD54HC4514F3A
CD74HC4514E
TEMP. RANGE ( C)
-55 to 125
PACKAGE
24 Ld CERDIP
24 Ld PDIP
24 Ld PDIP
24 Ld SOIC
24 Ld SOIC
24 Ld PDIP
24 Ld PDIP
24 Ld SOIC
24 Ld SOIC
Pinout
-55 to 125
CD54HC4514
(CERDIP)
CD74HC4514, CD74HC4515
(PDIP, SOIC)
CD74HC4514EN
CD74HC4514M
CD74HC4514M96
CD74HC4515E
-55 to 125
-55 to 125
TOP VIEW
-55 to 125
-55 to 125
LE
A0
A1
Y7
Y6
Y5
Y4
Y3
Y1
1
2
3
4
5
6
7
8
9
24
V
CC
23 E
CD74HC4515EN
CD74HC4515M
CD74HC4515M96
-55 to 125
22 A3
21 A2
20 Y10
19 Y11
18 Y8
-55 to 125
-55 to 125
NOTE: When ordering, use the entire part number. The suffix 96
denotes tape and reel.
17 Y9
16 Y14
15 Y15
14 Y12
13 Y13
Y2 10
Y0 11
GND 12
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © 2003, Texas Instruments Incorporated
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