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부품번호 | 54FCT245 기능 |
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기능 | Octal Bidirectional Transceiver | ||
제조업체 | National Semiconductor | ||
로고 | |||
전체 8 페이지수
August 1998
54FCT245
Octal Bidirectional Transceiver with TRI-STATE® Outputs
General Description
The ’FCT245 contains eight non-inverting bidirectional buff-
ers with TRI-STATE outputs and is intended for bus-oriented
applications. Current sinking capability is 48 mA on both the
A and B ports. The Transmit/Receive (T/R) input determines
the direction of data flow through the bidirectional trans-
ceiver. 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.
Features
n TTL input and output level compatible
n A and B output sink capability of 48 mA, source
capability of 12 mA
n CMOS power consumption
n Standard Microcircuit Drawing (SMD) 5962-8762901
Ordering Code:
Military
54FCT245DMQB
54FCT245FMQB
54FCT245LMQB
Logic Symbol
Package
Number
J20A
W20A
E20A
Package Description
20-Lead Ceramic Dual-In-Line
20-Lead Cerpak
20-Lead Ceramic Leadless Chip Carrier, Type C
DS100950-1
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100950
www.national.com
Free Datasheet http://www.Datasheet4U.com
AC Electrical Characteristics
Symbol
Parameter
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay
Data to Outputs
Output Enable
Time
Output Disable
Time
54FCT
TA = −55˚C to +125˚C
VCC = 4.5V–5.5V
CL = 50 pF
Min Max
1.5 7.5
1.5 7.5
1.5 10.0
1.5 10.0
1.5 10.0
1.5 10.0
Capacitance
Symbol
Parameter
Max
Units
CIN
Input Capacitance
10.0
CI/O (Note 4)
I/O Capacitance
12.0
Note 4: CI/O is measured at frequency f = 1 MHz, per MIL-STD-883B, Method 3012.
AC Loading
pF
pF
Units
Fig.
No.
ns
Figure
4
ns
Figure
5
ns
Figure
5
Conditions
TA = 25˚C
VCC = 0V (OE , T/R)
VCC = 5.0V (An, Bn)
DS100950-6
*Includes jig and probe capacitance
FIGURE 1. Standard AC Test Load
FIGURE 2. Test Input Signal Levels
DS100950-7
Amplitude Rep. Rate
tw
3.0V
1 MHz 500 ns
tr
2.5 ns
tf
2.5 ns
FIGURE 3. Test Input Signal Requirements
www.national.com
4
Free Datasheet http://www.Datasheet4U.com
4페이지 Physical Dimensions inches (millimeters) unless otherwise noted
20-Terminal Ceramic Chip Carrier (L)
NS Package Number E20A
20-Lead Ceramic Dual-In-Line Package (D)
NS Package Number J20A
7
www.national.com
Free Datasheet http://www.Datasheet4U.com
7페이지 | |||
구 성 | 총 8 페이지수 | ||
다운로드 | [ 54FCT245.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
54FCT241 | Octal Buffer/Line Driver | National Semiconductor |
54FCT241 | 54FCT241 Octal Buffer/Line Driver with -TRISTATE Outputs | Texas Instruments |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |