Incorporates two enable inputs to simplify cascading and/or
data reception
1.2μ
CMOS
- Latchup immune
High speed
Low power consumption
Single 5 volt supply
Available QML Q or V processes
Flexible package
- 16-pin DIP
- 16-lead flatpack
UT54ACS139 - SMD 5962-96546
UT54ACTS139 - SMD 5962-96547
DESCRIPTION
The UT54ACS139 and the UT54ACTS139 are designed to be
used in high-performance memory-decoding or data-routing ap-
plications requiring very short propagation delay times.
The devices consist of two individual two-line to four-line de-
coders in a single package. The active-low enable input can be
used as a data line in demultiplexing applications.
The devices are characterized over full military temperature
range of -55°C to +125°C.
FUNCTION TABLE
ENABLE
INPUTS
G
H
L
L
L
L
SELECT
INPUTS
B
X
L
L
H
H
A
X
L
H
L
H
Y0
H
L
H
H
H
OUTPUT
Y1
H
H
L
H
H
Y2
H
H
H
L
H
Y3
H
H
H
H
L
PINOUTS
16-Pin DIP
Top View
IG
1A
1B
1Y0
1Y1
1Y2
1Y3
V
SS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
DD
2G
2A
2B
2Y0
2Y1
2Y2
2Y3
16-Lead Flatpack
Top View
1G
1A
1B
1Y0
1Y1
1Y2
1Y3
V
SS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
DD
2G
2A
2B
2Y0
2Y1
2Y2
2Y3
LOGIC DIAGRAM
(4)
1G
(1)
(5)
(6)
SELECT
1A
1B
(2)
(3)
(7)
(12)
2G
(15)
(11)
(10)
SELECT
2A
2B
(14)
(13)
(9)
1Y0
1Y1
1Y2
DATA
1Y3
2Y0
2Y1
2Y2
2Y3
1
LOGIC SYMBOL
1A
1B
1G
(2)
(3)
(1)
X/Y
1
2
EN
0
1
2
3
(4)
(5)
(6)
(7)
(12)
(11)
(10)
(9)
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
1A
1B
1G
(2)
(3)
(1)
DMUX
0
1
0
G
---
3
0
1
2
3
(4)
(5)
(6)
(7)
(12)
(11)
(10)
(9)
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
2A
2B
2G
(14)
(13)
(15)
2A
2B
2G
(14)
(13)
(15)
Note:
1. Logic symbols in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
2
OPERATIONAL ENVIRONMENT
1
PARAMETER
Total Dose
SEU Threshold
2
SEL Threshold
Neutron Fluence
LIMIT
1.0E6
80
120
1.0E14
UNITS
rads(Si)
MeV-cm
2
/mg
MeV-cm
2
/mg
n/cm
2
Notes:
1. Logic will not latchup during radiation exposure within the limits defined in the table.
2. Device storage elements are immune to SEU affects.
ABSOLUTE MAXIMUM RATINGS
SYMBOL
V
DD
V
I/O
T
STG
T
J
T
LS
Θ
JC
I
I
P
D
PARAMETER
Supply voltage
Voltage any pin
Storage Temperature range
Maximum junction temperature
Lead temperature (soldering 5 seconds)
Thermal resistance junction to case
DC input current
Maximum power dissipation
LIMIT
-0.3 to 7.0
-.3 to V
DD
+.3
-65 to +150
+175
+300
20
±10
1
UNITS
V
V
°C
°C
°C
°C/W
mA
W
Note:
1. Stresses outside the listed absolute maximum ratings may cause permanent damage to the device. This is a stress rating only, functional operation of the device at
these or any other conditions beyond limits indicated in the operational sections is not recommended. Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
SYMBOL
V
DD
V
IN
T
C
PARAMETER
Supply voltage
Input voltage any pin
Temperature range
LIMIT
4.5 to 5.5
0 to V
DD
-55 to + 125
UNITS
V
V
°C
3
DC ELECTRICAL CHARACTERISTICS
7
(V
DD
= 5.0V
±
10%; V
SS
= 0V
6
, -55°C < T
C
< +125°C); Unless otherwise noted, Tc is per the temperature range ordered.
SYMBOL
V
IL
PARAMETER
Low-level input voltage
1
ACTS
ACS
High-level input voltage
1
ACTS
ACS
Input leakage current
ACTS/ACS
Low-level output voltage
3
ACTS
ACS
High-level output voltage
3
ACTS
ACS
Output current
10
(Sink)
I
OH
Output current
10
(Source)
I
OS
P
total
I
DDQ
ΔI
DDQ
Short-circuit output current
2 ,4
ACTS/ACS
Power dissipation
2, 8, ,9
Quiescent Supply Current
Quiescent Supply Current Delta
ACTS
V
IN
= V
DD
or V
SS
I
OL
= 8.0mA
I
OL
= 100μA
I
OH
= -8.0mA
I
OH
= -100μA
V
IN
= V
DD
or V
SS
V
OL
= 0.4V
V
IN
= V
DD
or V
SS
V
OH
= V
DD
- 0.4V
V
O
= V
DD
and V
SS
C
L
= 50pF
V
DD
= 5.5V
For input under test
V
IN
= V
DD
- 2.1V
For all other inputs
V
IN
= V
DD
or V
SS
V
DD
= 5.5V
C
IN
C
OUT
Input capacitance
5
Output capacitance
5
ƒ
= 1MHz @ 0V
ƒ
= 1MHz @ 0V
15
15
pF
pF
-200
200
1.8
10
1.6
mA
mW/
MHz
μA
mA
-8
mA
.7V
DD
V
DD
- 0.25
8
.5V
DD
.7V
DD
-1
1
0.40
0.25
CONDITION
MIN
MAX
0.8
.3V
DD
UNIT
V
V
IH
V
I
IN
V
OL
μA
V
V
OH
V
I
OL
mA
4
Notes:
1. Functional tests are conducted in accordance with MIL-STD-883 with the following input test conditions: V
IH
= V
IH
(min) + 20%, - 0%; V
IL
= V
IL
(max) + 0%, -
50%, as specified herein, for TTL, CMOS, or Schmitt compatible inputs. Devices may be tested using any input voltage within the above specified range, but are
guaranteed to V
IH
(min) and V
IL
(max).
2. Supplied as a design limit but not guaranteed or tested.
3. Per MIL-PRF-38535, for current density
≤
5.0E5 amps/cm
2
, the maximum product of load capacitance (per output buffer) times frequency should not exceed 3,765
pF/MHz.
4. Not more than one output may be shorted at a time for maximum duration of one second.
5. Capacitance measured for initial qualification and when design changes may affect the value. Capacitance is measured between the designated terminal and V
SS
at
frequency of 1MHz and a signal amplitude of 50mV rms maximum.
6. Maximum allowable relative shift equals 50mV.
7. All specifications valid for radiation dose
≤
1E6 rads(Si).
8. Power does not include power contribution of any TTL output sink current.
9. Power dissipation specified per switching output.
10. This value is guaranteed based on characterization data, but not tested.
Achieve goalsRealize the ability to decode and play simple music using a buzzer as a playback device.It has a loop list, can switch between the upper and lower tracks in real time, pause and start in ...
In the event processing function of ucos, the OS***pend function is often used, such as semaphores, message mailboxes, queues, etc. We know that the original meaning of pend is "suspended, pending", n...
I'm working on TVout output recently, using CH7024, and converting the LCD's 50HZ RGB image into a video signal for the CVBS interface. Now I have a few questions: 1. Can ch7024 support 50HZ progressi...
I have more free time every day, it's just like a vacation. In the upcoming festival, I wish my netizens and forum friends a happy holiday! Hahaha!!!!!!...
The global PV inverter market will shrink from $6.3 billion in 2017 to $3.7 billion in 2022 due to falling prices, according to GlobalData.
Global PV Inverter Market Value to Shrink to $3.7 Bil...[Details]
International Solar Photovoltaic Network News: Chinese inverter company Sungrow announced that it will build a 3GW photovoltaic inverter manufacturing plant in Bangalore, the capital of Karnataka, ...[Details]
On April 17, the U.S. Department of Commerce suddenly announced that it would completely ban U.S. companies from
selling parts, goods, software and technology
to
ZTE
within 7 years. This als...[Details]
After searching a lot of information, I finally understood the time base timer. I did not use any library functions but operated the registers directly. The following introduces the systick in STM32...[Details]
Security PPP is a new model of urban video surveillance projects: 1) The government and social capital establish a project company in a certain proportion; 2) The project company participates in the ...[Details]
Although it is early summer, the Chinese smartphone market is still in the cold winter, just like Beijing in April with snow. For mobile phone brands caught in the middle, the cold is even more bit...[Details]
This example is mainly to familiarize yourself with the register configuration of Timer A and the configuration method of IAR. /*********************************************** Program function: re...[Details]
This program uses the eight-channel ADC single acquisition mode. According to the configuration, ADC12SC will automatically reset after the conversion is completed in the single mode, so it is necess...[Details]
1 Introduction Due to the special working environment of coal mine production, the production process is more dangerous and unsafe than the general industry. With the continuous increase in c...[Details]
I believe that many netizens who have watched "Interstellar" will remember this classic line, "Do not go gentle into this good night, nor let passion be drowned by the gloom of twilight". Different...[Details]
Every era has anxiety that has nowhere to go. Let's follow the embedded editor to learn about the relevant content.
The anxiety of the post-Internet era is that if you don’t revolutionize ...[Details]
LiDAR: Autonomous driving from the perspective of optoelectronic technology LiDAR and competing sensor technologies (camera, radar, and ultrasonic) intensify the need for sensor fusion and the need...[Details]
ADI has established long-term good relationships with car manufacturers and Tier 1 component suppliers. Based on its previous long-term successful cooperation with new energy vehicles and suppliers a...[Details]
I have been working on a stm32 project recently and have been struggling with its startup method. I saw a good article and reposted it. The format of the original article is not very good, and there...[Details]
Microcontroller MCU
京公网安备 11010802033920号
EEWORLD
