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.
Main features: Support ISO7816 standard and can operate up to 6 SAM cards (PSAM or ESAM) at the same time. The ASIC chip supports high-speed (38400) and low-speed (9600) SAM cards. The package form is...
[i=s] This post was last edited by dontium on 2016-2-3 23:51 [/i] [align=left]1. msp430x2274 uses I2C bus to control DLP [/align] [align=left] The block diagram analysis of DLP LightCrafter Display 30...
After the last article on TCP, I am very close to connecting to Alibaba Cloud. Today I tried to connect to Alibaba Cloud platform. I would like to thank a big guy here: Part of the code of sipower clo...
I am developing OLE DB+SQL3.5 under WINCE. Now I need to implement a query for all the data in the database. There are some problems in use. The database types are string, time, and integer. When read...
Recently,
Xpeng Motors and Xinlian Integrated Circuit jointly announced the mass production of China's first hybrid silicon carbide product.
Designed and developed by Xpeng Motors and joint...[Details]
Electric vehicles are becoming increasingly popular, with increasingly longer ranges. There are two ways to charge electric vehicles: slow charging and fast charging. Which is the most suitable? Sl...[Details]
The 2025 China International Automotive Testing Exhibition will be held at the Shanghai World Expo Exhibition and Convention Center from August 27 to 29, 2025.
Clacton Seafront, UK, ...[Details]
Compared to cloud databases, minicomputers are purpose-built for decentralized, rugged computing at the edge of the network. By moving applications, analytics, and processing services closer to the...[Details]
Common methods for troubleshooting roller press bearing wear include repair welding, thermal spraying, brush plating, and scrapping and replacement. However, these methods are often subject to asse...[Details]
Speaking of the problem of vehicle spontaneous combustion, whether it is a pure electric vehicle or a fuel vehicle, there will be incidents of spontaneous combustion. For the same spontaneous combu...[Details]
For new energy vehicles, the importance of batteries is unquestionable. Not only does it determine the performance of the vehicle, but the battery density also has a great relationship with the veh...[Details]
Consumer demand for premium listening experiences has driven rapid evolution in the wireless headphone market in recent years. Hybrid designs, which utilize two drivers per earbud to enhance sound ...[Details]
Amid the rapid advancement of automotive intelligence, on-board storage has become a thorny bottleneck restricting the "large-scale popularization" of advanced assisted driving.
On the o...[Details]
The term "remote meter reading" literally emphasizes remoteness. But how far is remote? One kilometer? Two kilometers? Those aren't considered far at all. Currently, the longest distance for ...[Details]
According to reports from Xinhua News Agency, Tianjin University official website and other media, Chinese researchers have recently broken through the bottleneck of energy density and application ...[Details]
The motors on some production machinery are required to run for a period of time and then stop for a period of time, which is called intermittent operation. As shown in the figure below, this funct...[Details]
The battery in an electric car is related to the vehicle's performance. As one of the core components of the vehicle, the battery cell has become an important reference for evaluating the quality o...[Details]
The idea of vehicles sharing information and collaborating to make transportation safer, more environmentally friendly, and more enjoyable is incredibly appealing. The various technologies associat...[Details]
Organic light-emitting diodes (
OLEDs) offer numerous advantages, including inherent brightness, low power consumption, minimal thickness, short response time, high contrast, wide viewing angle...[Details]
Talking
京公网安备 11010802033920号
EEWORLD
