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부품번호 | 54F574 기능 |
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기능 | Octal D-Type Flip-Flop | ||
제조업체 | National Semiconductor | ||
로고 | |||
전체 8 페이지수
www.DataSheet4U.com
May 1995
54F 74F574
Octal D-Type Flip-Flop with TRI-STATE Outputs
General Description
The ’F574 is a high-speed low power octal flip-flop with a
buffered common Clock (CP) and a buffered common Out-
put Enable (OE) The information presented to the D inputs
is stored in the flip-flops on the LOW-to-HIGH Clock (CP)
transition
This device is functionally identical to the ’F374 except for
the pinouts
Features
Y Inputs and outputs on opposite sides of package
allowing easy interface with microprocessors
Y Useful as input or output port for microprocessors
Y Functionally identical to ’F374
Y TRI-STATE outputs for bus-oriented applications
Commercial
74F574PC
74F574SC (Note 1)
74F574SJ (Note 1)
Military
54F574DM (Note 2)
54F574FM (Note 2)
54F574LM (Note 2)
Package
Number
N20A
J20A
M20B
M20D
W20A
E20A
Package Description
20-Lead (0 300 Wide) Molded Dual-In-Line
20-Lead Ceramic Dual-In-Line
20-Lead (0 300 Wide) Molded Small Outline JEDEC
20-Lead (0 300 Wide) Molded Small Outline EIAJ
20-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
Note 1 Devices also available in 13 reel Use suffix e SCX and SJX
Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB
Logic Symbols
IEEE IEC
TL F 9567 – 1
Unit Loading Fan Out
Pin Names
D0 – D7
CP
OE
O0 – O7
Description
Data Inputs
Clock Pulse Input (Active LOW)
TRI-STATE Output Enable Input (Active LOW)
TRI-STATE Outputs
54F 74F
UL
HIGH LOW
10 10
10 10
10 10
150 40 (33 3)
Input IIH IIL
Output IOH IOL
20 mA b0 6 mA
20 mA b0 6 mA
20 mA b0 6 mA
b3 mA 24 mA (20 mA)
TL F 9567 – 4
TRI-STATE is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL F 9567
RRD-B30M75 Printed in U S A
AC Electrical Characteristics
Symbol
Parameter
fmax
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Maximum Clock Frequency
Propagation Delay
CP to On
Output Enable Time
Output Disable Time
74F
TA e a25 C
VCC e a5 0V
CL e 50 pF
Min Typ Max
100
25 53 85
25 53 85
30 55 90
30 60 90
15 33 55
15 28 55
54F
TA VCC e Mil
CL e 50 pF
Min Max
60
25 95
25 95
2 5 10 5
2 5 10 5
15 70
15 70
AC Operating Requirements
Symbol
Parameter
ts(H)
ts(L)
th(H)
th(L)
tw(H)
tw(L)
Set-up Time HIGH or LOW
Dn to CP
Hold Time HIGH or LOW
Dn to CP
CP Pulse Width
HIGH or LOW
74F
TA e a25 C
VCC e a5 0V
Min Max
25
20
20
20
50
50
54F
TA VCC e Mil
Min Max
30
25
20
20
50
50
74F
TA VCC e Com
CL e 50 pF
Min Max
70
25 85
25 85
2 5 10 0
2 5 10 0
15 65
15 65
74F
TA VCC e Com
Min Max
25
20
20
20
50
50
Units
MHz
ns
ns
Units
ns
ns
4
4페이지 Physical Dimensions inches (millimeters) (Continued)
20-Lead (0 300 Wide) Molded Small Outline Package EIAJ
NS Package Number M20D
20-Lead (0 300 Wide) Molded Dual-In-Line Package (P)
NS Package Number N20A
7
7페이지 | |||
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부품번호 | 상세설명 및 기능 | 제조사 |
54F573 | Octal D-Type Latch | National Semiconductor |
54F573 | 54F573 74F573 Octal D-Type Latch with TRI-STATE(RM) Outputs (Rev. A) | Texas Instruments |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |