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HD74HC4514
4-bit Latch/4-to-16-line Decoder
Description
This device presents a 4-to-16 line decoder with latched in puts. The HD74HC4514 presents a high level at
the selected output.
This device consists of four storage latches with common strobe and inhibit (G) inputs. When a low signal
is applied to the strobe input, the input data is stored, decoded, and presented to the output. When strobe is
high, all sixteen HD74HC4514 outputs are at a low logic level.
Features
• High Speed Operation: tpd (Data to S) = 20 ns typ (CL = 50 pF)
• High Output Current: Fanout of 10 LSTTL Loads
• Wide Operating Voltage: VCC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
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HD74HC4514
Function Table (Strobe = High)
Data Inputs
Inhibit D C B A Select Outputs
LLLLLS
LL L L H S
LL L H L S
LLLHHS
LLHLLS
LL H L H S
LL H H L S
LLHHHS
LHLLLS
LH L L H S
LH L H L S
LHLHHS
LHHLLS
LH H L H S
LH H H L S
LHHHHS
H X X X X All output “L”
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
2
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Pin Arrangement
HD74HC4514
Strobe
Data 1
Data 2
S
S
S
S
S
S
S
S
1
2
3
4
7
5
6
6
5
7
4
Latch
BADC
4 to 16
24
23
22
21
20
19
18
V
CC
Inhibit
Data 4
Data 3
S
10
S
11
S
8
Decoder
8
3
9
1
10
2
11
0
17
16
15
14
S
9
S
14
S
15
S
12
GND
12
(Top view)
13
S
13
3
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HD74HC4514
Logic Diagram
Data 1
Data 2
Data 3
Data 4
D
LE
D
LE
D
LE
D
LE
S
0
S
1
S
2
S
3
S
Q
Q
Q
Q
Q
Q
Q
Q
4
S
5
S
6
S
7
S
8
S
9
S
10
Strobe
INH
S
11
S
12
S
13
S
14
S
15
4
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HD74HC4514
DC Characteristics
Ta = –40 to
Ta = 25°C
Item Symbol V
Input voltage V
IH
(V) Min Typ Max Min Max Unit Test Conditions
CC
2.0 1.5 — — 1.5 — V
4.5 3.15 — — 3.15 —
6.0 4.2 — — 4.2 —
V
IL
2.0 — — 0.5 — 0.5 V
4.5 — — 1.35 — 1.35
6.0 — — 1.8 — 1.8
Output voltage V
OH
2.0 1.9 2.0 — 1.9 — V Vin = VIH or VILIOH = –20 µA
4.5 4.4 4.5 — 4.4 —
6.0 5.9 6.0 — 5.9 —
4.5 4.18 — — 4.13 — IOH = –4 mA
6.0 5.68 — — 5.63 — IOH = –5.2 mA
V
OL
2.0 — 0.0 0.1 — 0.1 V Vin = VIH or VILIOL = 20 µA
4.5 — 0.0 0.1 — 0.1
6.0 — 0.0 0.1 — 0.1
4.5 — — 0.26 — 0.33 IOL = 4 mA
6.0 — — 0.26 — 0.33 IOL = 5.2 mA
Input current Iin 6.0 — — ±0.1 — ±1.0 µA Vin = VCC or GND
Quiescent supply
I
CC
6.0 — — 4.0 — 40 µA Vin = VCC or GND, Iout = 0 µA
current
+85°C
5
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HD74HC4514
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = –40 to
Ta = 25°C
Item Symbol V
Propagation delay t
time t
PLH
PHL
(V) Min Typ Max Min Max Unit Test Conditions
CC
2.0 — — 200 — 250 ns Data to output
4.5 — 20 40 — 50
6.0 — — 34 — 43
t
PLH
t
PHL
2.0 — — 175 — 220 ns Inhibit to output
4.5 — 13 35 — 44
6.0 — — 30 — 37
t
PLH
t
PHL
2.0 — — 200 — 250 ns Strobe to output
4.5 — 21 40 — 50
6.0 — — 34 — 34
Setup time t
su
2.0 100 — — 125 — ns Data to strobe
4.5 20 3 — 25 —
6.0 17 — — 21 —
Hold time t
h
2.0 5 — — 5 — ns Strobe to data
4.5 5 –1 — 5 —
6.0 5 — — 5 —
Pulse width t
w
2.0 80 — — 100 — ns Strobe
4.5 16 4 — 20 —
6.0 14 — — 17 —
Output rise/fall t
time t
TLH
THL
2.0 — — 75 — 95 ns
4.5 — 6 15 — 19
6.0 — — 13 — 16
Input capacitance Cin — — 5 10 — 10 pF
+85°C
6
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31.6
24 13
32.5 Max
13.4
15.0 Max
Unit: mm
112
1.2
15.24
2.13 Max
2.54 ± 0.25
0.48 ± 0.10
0.51 Min
2.54 Min 5.70 Max
0.25
0° – 15°
Hitachi Code
JEDEC
EIAJ
(reference value)
Weight
DP-24
Conforms
Conforms
3.1 g
+ 0.11
– 0.05
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Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
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Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan.
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