74LVT245 반도체 회로 부품 판매점
Low Voltage Octal Bidirectional Transceiver
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 Fairchild Semiconductor |
February 2008
74LVT245, 74LVTH245
Low Voltage Octal Bidirectional Transceiver with 3-STATE
Inputs/Outputs
Features
■ Input and output interface capability to systems at
5V VCC
■ Bushold data inputs eliminate the need for external
pull-up resistors to hold unused inputs (74LVTH245),
also available without bushold feature (74LVT245)
■ Live insertion/extraction permitted
■ Power Up/Down high impedance provides glitch-free
bus loading
■ Outputs source/sink, –32mA/+64mA
■ Latch-up performance exceeds 500mA
■ ESD performance:
– Human-body model > 2000V
– Machine model > 200V
– Charged-device model > 1000V
General Description
The LVT245 and LVTH245 contain eight non-inverting
bidirectional buffers with 3-STATE outputs and are
intended for bus-oriented applications. The Transmit/
Receive (T/R) input determines the direction of data flow
through the bidirectional transceiver. Transmit (active-
HIGH) enables data from A ports to B ports; Receive
(active-LOW) enables data from B ports to A ports. The
Output Enable input, when HIGH, disables both A and B
ports by placing them in a HIGH Z condition.
The LVTH245 data inputs include bushold, eliminating
the need for external pull-up resistors to hold unused
inputs.
These transceivers are designed for low-voltage (3.3V)
VCC applications, but with the capability to provide a TTL
interface to a 5V environment. The LVT245 and
LVTH245 are fabricated with an advanced BiCMOS
technology to achieve high speed operation similar to 5V
ABT while maintaining a low power dissipation.
Ordering Information
Order Number
74LVT245WM
74LVT245SJ
74LVT245MSA
74LVT245MTC
74LVTH245WM
74LVTH245SJ
74LVTH245MSA
74LVTH245MTC
Package
Number
M20B
M20D
MSA20
MTC20
M20B
M20D
MSA20
MTC20
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.
All packages are lead free per JEDEC: J-STD-020B standard.
©1999 Fairchild Semiconductor Corporation
74LVT245, 74LVTH245 Rev. 1.4.0
www.fairchildsemi.com
Connection Diagram
Logic Symbols
IEEE/IEC
Pin Description
Pin
Names
OE
T/R
A0–A7
B0–B7
Description
Output Enable Input
Transmit/Receive Input
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
Truth Table
Inputs
OE T/R
LL
LH
HX
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Outputs
Bus B Data to Bus A
Bus A Data to Bus B
HIGH-Z State
©1999 Fairchild Semiconductor Corporation
74LVT245, 74LVTH245 Rev. 1.4.0
2
www.fairchildsemi.com
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제조업체: Fairchild Semiconductor
( fairchild )
74LVT245 transceiver
데이터시트 다운로드 :
[ 74LVT245.PDF ]
[ 74LVT245 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
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