Generates either odd or even parity for nine data lines
Cascadable for n-bits parity
1.2μ
CMOS
- Latchup immune
High speed
Low power consumption
Single 5 volt supply
Available QML Q or V processes
Flexible package
- 14-pin DIP
- 14-lead flatpack
UT54ACS280 - SMD 5962-96582
UT54ACTS280 - SMD 5962-96583
DESCRIPTION
The UT54ACS280 and the UT54ACTS280 are 9-bit parity gen-
erators/checkers that use high-performance circuitry and fea-
tures odd and even outputs to facilitate operation of either odd
or even parity application. The word-length capability is easily
expanded by cascading.
The devices are characterized over full military temperature
range of -55°C to +125°C.
FUNCTION TABLE
NUMBER OF INPUTS A THRU I
THAT ARE HIGH
OUTPUT
Σ
EVEN
0,2,4,6,8
1,3,5,7,9
H
L
Σ
ODD
L
H
PINOUTS
14-Pin DIP
Top View
G
H
NC
I
∑
EVEN
∑
ODD
V
SS
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
DD
F
E
D
C
B
A
14-Lead Flatpack
Top View
G
H
NC
I
∑
EVEN
∑
ODD
V
SS
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
DD
F
E
D
C
B
A
LOGIC SYMBOL
(8)
(9)
(10)
(11)
(12)
(13)
(1)
(2)
(4)
(6)
∑
ODD
(5)
∑
EVEN
2k
A
B
C
D
E
F
G
H
I
Note:
1. Logic symbol in accordance with ANSI/IEEE standard 91-1984 and IEC
Publication 617-12.
1
LOGIC DIAGRAM
A (8)
(
B (9)
C (10)
(5)
Σ
EVEN
D
(11)
E
(12)
F
(13)
(6)
Σ
ODD
(1)
G
(2)
H
(4)
I
2
OPERATIONAL ENVIRONMENT
1
PARAMETER
Total Dose
SEU Threshold
2
SEL Threshold
Neutron Fluence
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.
LIMIT
1.0E6
80
120
1.0E14
UNITS
rads(Si)
MeV-cm
2
/mg
MeV-cm
2
/mg
n/cm
2
ABSOLUTE MAXIMUM RATINGS
SYMBOL
V
DD
V
I/O
T
STG
T
J
T
LS
Θ
JC
I
I
P
D
PARAMETER
Supply voltage
Input 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
Short-circuit output current
2 ,4
ACTS/ACS
Output current
10
(Sink)
I
OH
Output current
10
(Source)
P
total
I
DDQ
ΔI
DDQ
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
O
= V
DD
and V
SS
V
IN
= V
DD
or V
SS
V
OL
= 0.4V
V
IN
= V
DD
or V
SS
V
OH
= V
DD
- 0.4V
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
2.2
10
1.6
mW/
MHz
μA
mA
-8
mA
.7V
DD
V
DD
- 0.25
-200
8
200
.5V
DD
.7V
DD
-1
1
CONDITION
MIN
MAX
0.8
.3V
DD
UNIT
V
V
IH
V
I
IN
V
OL
μA
0.40
0.25
V
V
OH
V
I
OS
I
OL
mA
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.
I'm sure some of you have received this apology message. Although I'm a little disappointed, I think it reflects the fairness and justice of our electronic forum and the timely correction. As a member...
Use 5438 to send a string of characters to the PC and display them. Select the "Hexadecimal Display" item in the serial port debugging assistant, but the display result does not change. I don't know w...
[i=s]This post was last edited by deweyled on 2014-5-10 20:26[/i] After a week of tossing and turning at night and today's hard work, the whole function of the engraving machine has finally been teste...
[i=s]This post was last edited by w562601331 on 2020-5-4 21:51[/i]1. ST has placed some sample projects in GitHub to implement simple functions:
Add these projects to the configured projects to implem...
EtherCAT (Ethernet for Control Automation Technology) is a real-time industrial fieldbus communication protocol based on an Ethernet-based development framework. EtherCAT is one of the fastest indu...[Details]
To enable real-time monitoring of home security and automatically dial a number for voice prompts or send text messages when an alarm occurs, a GPRS-based embedded telephone alarm system was design...[Details]
We are entering a new era where people are increasingly affordably equipped with more electronic gadgets. Electronics have become essential to our lives. For example, the average consumer now owns ...[Details]
Capable of providing precise and efficient thermal management for artificial intelligence computing power, intelligent sensing and autonomous driving systems
Shenzhen, ...[Details]
Recently, AstroBo Robot, a subsidiary of Chenxing Automation, launched a new mobile collaborative palletizing product. Leveraging an omnidirectional mobile chassis, an intelligent scheduling system...[Details]
introduction
Inverter air conditioners are a trend in the current era and have gradually become commonplace in countless households. Beyond their basic cooling and heating functions, air condi...[Details]
The evolution of high-speed networks remains guided by the same core objectives: increasing data rates, reducing latency, improving reliability, lowering power consumption, and maintaining or exten...[Details]
0 Introduction
Portable terminals integrate a computer and display screen into a single device. Due to limited space in portable devices, previous designs often used a single-chip microcompute...[Details]
Cadence and NVIDIA Collaborate to Revolutionize Power Analysis Technology, Accelerating Development of Billion-Gate AI Designs
Cadence's new Palladium Dynamic Power Analysis applicat...[Details]
Recently, I received a request to use OK1028A-C to output PWM square wave. However, I found that there was no relevant instructions on the OK1028 platform, so I started writing this article.
A...[Details]
On August 19, Huawei's Executive Director and Chairman of the Device BG, Richard Yu, shared a Weibo post about a conversation he had with a Zunjie S800 owner. The owner had driven over 5,000 kilome...[Details]
Imagine you're trying to turn left onto a busy road. Car after car passes in front of you, and the long wait grows increasingly frustrating. Finally, a gracious driver slows down and makes room for...[Details]
As systems become increasingly used in industrial environments, industry safety requirements, as well as national and international safety regulations, need to be constantly updated to ensure a saf...[Details]
On August 9th, at the 2025 World Robotics Conference (WRC), Shenzhen Cyborg Robotics Co., Ltd. officially unveiled the Cyborg-H01, the world's first lightweight bionic dexterous hand. This core com...[Details]
Recently, a research team from Shandong University and Huawei Technologies Co., Ltd. achieved a significant breakthrough in the field of power semiconductors. Using fluorine-ion implantation termin...[Details]
FPGA/CPLD
京公网安备 11010802033920号
EEWORLD
