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PDF 74F544 Data sheet ( Hoja de datos )
| Número de pieza | 74F544 | |
| Descripción | Octal Registered Transceiver | |
| Fabricantes | National | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 74F544 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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December 1994
54F 74F544
Octal Registered Transceiver
General Description
The ’F544 octal transceiver contains two sets of D-type
latches for temporary storage of data flowing in either direc-
tion Separate Latch Enable and Output Enable inputs are
provided for each register to permit independent control of
inputting and outputting in either direction of data flow The
A outputs are guaranteed to sink 24 mA (20 mA Mil) while
the B outputs are rated for 64 mA (48 mA Mil) The ’F544
inverts data in both directions
Features
Y 8-bit octal transceiver
Y Back-to-back registers for storage
Y Separate controls for data flow in each direction
Y A outputs sink 24 mA (20 mA Mil) B outputs sink
64 mA (48 mA Mil)
Y 300 mil slim PDIP
Commercial
74F544SPC
74F544SC (Note 1)
74F544MSA (Note 1)
Military
54F544DM (Note 2)
54F544SDM (Note 2)
54F544FM (Note 2)
54F544LM (Note 2)
Package
Number
N24C
J24A
J24F
M24B
MSA24
W24C
E28A
Package Description
24-Lead (0 300 Wide) Molded Dual-In-Line
24-Lead Ceramic Dual-In-Line
24-Lead (0 300 Wide) Ceramic Dual-In-Line
24-Lead (0 300 Wide) Molded Small Outline JEDEC
24-Lead Molded Shrink Small Outline EIAJ Type II
24-Lead Cerpack
24-Lead Ceramic Leadless Chip Carrier Type C
Note 1 Devices also available in 13 reel Use suffix e SCX and MSAX
Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB
Logic Symbols
IEEE IEC
TL F 9555 – 2
TRI-STATE is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL F 9555
TL F 9555 – 1
RRD-B30M75 Printed in U S A
1 page  
DC Electrical Characteristics (Continued)
Symbol
Parameter
IOS Output Short-Circuit Current
IZZ
ICCH
ICCL
ICCZ
Bus Drainage Test
Power Supply Current
Power Supply Current
Power Supply Current
Min
b60
b100
54F 74F
Typ
70
85
83
Max
b150
b225
500
105
130
125
Units
mA
mA
mA
mA
mA
VCC
Max
0 0V
Max
Max
Max
Conditions
VOUT e 0V (An)
VOUT e 0V (Bn)
VOUT e 5 25V (An Bn)
VO e HIGH
VO e LOW
VO e HIGH Z
AC Electrical Characteristics
Symbol
Parameter
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay
Transparent Mode
An to Bn or Bn to An
Propagation Delay
LEBA to An
Propagation Delay
LEAB to Bn
Output Enable Time
OEBA or OEAB to An or Bn
CEBA or CEAB to An or Bn
Output Disable Time
OEBA or OEAB to An or Bn
CEBA or CEAB to An or Bn
74F
TA e a25 C
VCC e a5 0V
CL e 50 pF
Min Typ Max
30 70 95
30 50 65
6 0 10 0 13 0
40 70 95
6 0 10 0 13 0
40 70 95
30 70 90
4 0 7 5 10 5
10 60 80
2 5 5 5 10 5
54F
TA VCC e Mil
CL e 50 pF
Min Max
3 0 12 0
25 85
6 0 18 0
4 0 11 5
6 0 18 0
4 0 11 5
3 0 11 0
4 0 13 0
2 0 10 0
20 95
74F
TA VCC e Com
CL e 50 pF
Min Max
3 0 10 5
30 75
Units
ns
6 0 14 5 ns
4 0 10 5
60
40
14 5
10 5
ns
3 0 10 0
4 0 12 0
ns
10 90
2 5 11 5
AC Operating Requirements
Symbol
Parameter
ts(H)
ts(L)
th(H)
th(L)
tw(L)
Setup Time HIGH or LOW
An or Bn to LEBA or LEAB
Hold Time HIGH or LOW
An or Bn to LEBA or LEAB
Latch Enable B to A
Pulse Width LOW
74F
TA e a25 C
VCC e a5 0V
Min Max
30
30
30
30
60
54F
TA VCC e Mil
Min Max
30
30
30
30
90
74F
TA VCC e Com
Min Max
30
30
30
30
75
Units
ns
ns
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet 74F544.PDF ] | |
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