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PDF RD74HC245A Data sheet ( Hoja de datos )
| Número de pieza | RD74HC245A | |
| Descripción | Octal Bus Transceivers | |
| Fabricantes | Renesas Technology | |
| Logotipo |  |
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Preliminary Datasheet
RD74HC245A
Octal Bus Transceivers (with 3-state outputs)
R07DS0047EJ0100
Rev.1.00
Jul 20, 2010
Description
Each device has an active low enable input G and a direction control input, DIR. When DIR is high, data flows from
the A inputs to the B outputs. When DIR is low, data flows from the B inputs to the A outputs. The RD74HC245A
transfers true data from one bus to the other. This device does not have schmitt trigger inputs.
Features
High Speed Operation: tpd = 8 ns typ (CL = 50 pF)
High Output Current: Fanout of 15 LSTTL Loads
Wide Operating Voltage: VCC = 2 to 6 V
Low Input Current: 1 µA max
Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
Ordering Information
Part Name
Package Type
Package Code
(Previous Code)
Package
Abbreviation
RD74HC245APT0
DILP-20 pin
PRDP0020AC-B
(DP-20NEV)
P
RD74HC245AFPH0 SOP-20 pin (JEITA)
PRSP0020DD-B
(FP-20DAV)
FP
RD74HC245ARPH0
SOP-20 pin (JEDEC)
PRSP0020DC-A
(FP-20DBV)
RP
Note: Please consult the sales office for the above package availability.
Taping Abbreviation
(Quantity)
Surface
Treatment
— 0 (Ni/Pd/Au)
H (2,000 pcs/reel)
0 (Ni/Pd/Au)
H (1,000 pcs/reel)
0 (Ni/Pd/Au)
Function Table
Enable G
L
L
H
H : high level
L : low level
X : irrelevant
Direction Control DIR
L
H
X
Operation
B data to A bus
A data to B bus
Isolation
R07DS0047EJ0100 Rev.1.00
Jul 20, 2010
www.DataSheet.in
Page 1 of 7
1 page  
RD74HC245A
Preliminary
Waveforms
• Waveform – 1
Input A
Output Y
tr
10 %
90 %
50 %
tPLH
tf
90 %
50 %
10 %
tPHL
50 %
10 %
90 %
90 %
50 %
10 %
tTLH
tTHL
VCC
0V
VOH
VOL
• Waveform – 2
tf
90 %
Input G
50 %
10 %
tZL
tr
10 %
90 %
50 %
tLZ
Waveform – A
Waveform – B
50 %
tZH
50 %
10 %
tHZ
90 %
VCC
0V
VOH
VOL
VOH
VOL
Notes : 1. Input waveform : PRR ≤ 1 MHz, duty cycle 50%, tr ≤ 6 ns, tf ≤ 6 ns
2. Waveform– A is for an output with internal conditions such that the
output is low except when disabled by the output control.
3. Waveform– B is for an output with internal conditions such that the
output is high except when disabled by the output control.
4. The output are measured one at a time with one transition per measurement.
R07DS0047EJ0100 Rev.1.00
Jul 20, 2010
www.DataSheet.in
Page 5 of 7
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet RD74HC245A.PDF ] | |
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