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UT54ACTS541 Datasheet Preview

UT54ACTS541 Datasheet

Octal Buffers and Line Drivers

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UT54ACS541/UT54ACTS541
Radiation-Hardened
Octal Buffers & Line Drivers, Three-State Outputs
Dec. 1, 2003
FEATURES
Three-state outputs drive bus lines or buffer memory address
registers
• 1.2µ radiation-hardened CMOS (ACS541) and 0.6µ CRH
CMOS process (ACTS541)
www.DataShe-eLt4aUt.cchoump immune
High speed
Low power consumption
Single 5 volt supply
Available QML Q or V processes
Flexible package
- 20-pin DIP (not available for the ACTS541)
- 20-lead flatpack
DESCRIPTION
The UT54ACS541 and the UT54ACTS541 are non-inverting oc-
tal buffers and line drivers which improve the performance and
density of three-state memory address drivers, clock drivers, and
bus-oriented receivers and transmitters. The devices are charac-
terized over full military temperature range of -55°C to +125°C.
FUNCTION TABLE
INPUTS
OUTPUT
1G 2G An Yn
LLLL
L LHH
HXXZ
XHXZ
LOGIC SYMBOL
1G (1)
2G (19)
&
EN
PINOUTS
1G
A1
A2
A3
A4
A5
A6
A7
A8
VSS
A1 (2)
A2 (3)
A3 (4)
A4 (5)
A5 (6)
A6 (7)
A7 (8)
A8 (9)
(18)
(17)
Y1
Y2
(16) Y3
(15) Y4
(14) Y5
(13) Y6
(12) Y7
(11) Y8
Note:
1. Logic symbol in accordance with ANSI/IEEE Std 91-1984 and IEC
Publication 617-12.
235
20-Pin DIP
Top View
1G 1 20 VDD
A1 2 19 2G
A2 3 18 Y1
A3 4 17 Y2
A4 5 16 Y3
A5 6 15 Y4
A6 7 14 Y5
A7 8 13 Y6
A8 9 12 Y7
VSS 10 11 Y8
20-Lead Flatpack
Top View
1 20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11
VDD
2G
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
RadHard MSI Logic




ETC

UT54ACTS541 Datasheet Preview

UT54ACTS541 Datasheet

Octal Buffers and Line Drivers

No Preview Available !

LOGIC DIAGRAM
UT54ACS541/UT54ACTS541
A8 A7
A6 A5 A4 A3 A2 A1 2G 1G
(9) (8) (7) (6) (5) (4) (3) (2) (19) (1)
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(11)
Y8
(12)
Y7
(13)
Y6
(14)
Y5
(15)
Y4
(16)
Y3
(17)
Y2
(18)
Y1
RADIATION HARDNESS SPECIFICATIONS 1
PARAMETER
Total Dose
SEU Threshold 2
SEL Threshold
Neutron Fluence
LIMIT
1.0E6 (ACS541)
5.0E5 (ACTS541)
80
120
1.0E14
UNITS
rads(Si)
MeV-cm2/mg
MeV-cm2/mg
n/cm2
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
PARAMETER
LIMIT
UNITS
VDD
VI/O
TSTG
TJ
TLS
ΘJC
II
PD
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
-0.3 to 7.0
-.3 to VDD +.3
-65 to +150
+175
+300
20
±10
1
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.
RadHard MSI Logic
236


Part Number UT54ACTS541
Description Octal Buffers and Line Drivers
Maker ETC
Total Page 6 Pages
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