|
|
UT54ACS245のメーカーはAeroflex Circuit Technologyです、この部品の機能は「Octal Bus Transceiver」です。 |
部品番号 | UT54ACS245 |
| |
部品説明 | Octal Bus Transceiver | ||
メーカ | Aeroflex Circuit Technology | ||
ロゴ | |||
このページの下部にプレビューとUT54ACS245ダウンロード(pdfファイル)リンクがあります。 Total 10 pages
Standard Products
UT54ACS245/UT54ACTS245
Octal Bus Transceiver with Three-State Outputs
Datasheet
November 2010
www.aeroflex.com/logic
FEATURES
Three-state outputs drive bus line directly
1.2μ CMOS
- Latchup immune
High speed
Low power consumption
Single 5 volt supply
Available QML Q or V processes
Flexible package
- 20-pin DIP
- 20-lead flatpack
UT54ACS245 - SMD 5962-96572
UT54ACTS245 - SMD 5962-96573
DESCRIPTION
The UT54ACS245 and the UT54ACTS245 are non-inverting
octal bus transceivers designed for asynchronous two-way com-
munication between data buses. The control function imple-
mentation minimizes external timing requirements.
The devices allow data transmission from the A bus to the B bus
or from the B bus to the A bus depending upon the logic level
at the direction control (DIR) input. The enable input (G) dis-
ables the device so that the buses are effectively isolated.
The devices are characterized over full military temperature
range of -55°C to +125°C.
FUNCTION TABLE
ENABLE DIRECTION
G CONTROL DIR
OPERATION
LL
B Data To A Bus
LH
A Data To B Bus
HX
Isolation
PINOUTS
DIR
A1
A2
A3
A4
A5
A6
A7
A8
VSS
20-Pin DIP
Top View
DIR 1 20 VDD
A1 2 19 G
A2 3 18 B1
A3 4 17 B2
A4 5 16 B3
A5 6 15 B4
A6 7 14 B5
A7 8 13 B6
A8 9 12 B7
VSS 10 11 B8
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
G
B1
B2
B3
B4
B5
B6
B7
B8
LOGIC SYMBOL
(19)
G
(1)
DIR
(2)
A1
(3)
A2
(4)
A3
(5)
A4
(6)
A5
(7)
A6
(8)
A7
A8 (9)
G3
3 EN1 (BA)
3 EN2 (AB)
1
2
(18)
B1
(17)
B2
(16)
B3
(15)
B4
(14)
B5
(13)
(12) B6
B7
(11)
B8
Note:
1 1. Logic symbol in accordance with ANSI/IEEE Std 91-1984 and IEC
Publication 617-12.
1 Page OPERATIONAL ENVIRONMENT1
PARAMETER
Total Dose
SEU Threshold 2
SEL Threshold
Neutron Fluence
LIMIT
1.0E6
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 Supply voltage
-0.3 to 7.0
V
VI/O
TSTG
TJ
TLS
ΘJC
II
Voltage any pin
Storage Temperature range
Maximum junction temperature
Lead temperature (soldering 5 seconds)
Thermal resistance junction to case
DC input current
-.3 to VDD +.3
-65 to +150
+175
+300
20
±10
V
°C
°C
°C
°C/W
mA
PD Maximum power dissipation
1W
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
VDD
VIN
TC
PARAMETER
Supply voltage
Input voltage any pin
Temperature range
LIMIT
4.5 to 5.5
0 to VDD
-55 to + 125
UNITS
V
V
°C
3
3Pages AC ELECTRICAL CHARACTERISTICS 2
(VDD = 5.0V ±10%; VSS = 0V 6, -55°C < TC < +125°C); Unless otherwise noted, Tc is per the temperature range ordered.
SYMBOL
PARAMETER
MINIMUM
MAXIMUM
UNIT
tPLH Data to bus
tPHL Data to bus
tPZL G low to bus active
tPZH G low to bus active
tPLZ G high to bus three-state
tPHZ G high to bus three-state
1 11 ns
1 15 ns
2 12 ns
2 12 ns
2 12 ns
2 12 ns
Notes:
1. Maximum allowable relative shift equals 50mV.
2. All specifications valid for radiation dose ≤ 1E6 rads(Si)
6
6 Page | |||
ページ | 合計 : 10 ページ | ||
|
PDF ダウンロード | [ UT54ACS245 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
UT54ACS240 | Octal Buffers and Line Drivers | ETC |
UT54ACS240 | Octal Buffers & Line Drivers | Aeroflex Circuit Technology |
UT54ACS244 | Radiation-Hardened Octal Buffers & Line Drivers | Aeroflex Microelectronic Solutions |
UT54ACS244 | Radiation-Hardened Octal Buffers & Line Drivers | ETC |