|
|
Teilenummer | 54ACT253 |
|
Beschreibung | Dual 4-Input Multiplexer | |
Hersteller | National Semiconductor | |
Logo | ||
Gesamt 8 Seiten www.DataSheet4U.com
August 1998
54AC253 • 54ACT253
Dual 4-Input Multiplexer with TRI-STATE® Outputs
General Description
The ’AC/’ACT253 is a dual 4-input multiplexer with
TRI-STATE outputs. It can select two bits of data from four
sources using common select inputs. The outputs may be in-
dividually switched to a high impedance state with a HIGH
on the respective Output Enable (OE) inputs, allowing the
outputs to interface directly with bus oriented systems.
n Multifunction capability
n Noninverting TRI-STATE outputs
n Outputs source/sink 24 mA
n ’ACT253 has TTL-compatible inputs
n Standard Military Drawing (SMD)
— ’AC253: 5962-87693
— ’ACT253: 5962-87761
Features
n ICC and IOZ reduced by 50%
Logic Diagrams
IEEE/IEC
DS100285-1
Pin Names
I0a– I3a
I0b– I3b
S0, S1
OEa
OEb
Za, Zb
Description
Side A Data Inputs
Side B Data Inputs
Common Select Inputs
Side A Output Enable Input
Side B Output Enable Input
TRI-STATE Outputs
DS100285-2
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
FACT® is a registered trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100285
www.national.com
AC Electrical Characteristics
Symbol
Parameter
tPLH
tPHL
tPLH
tPHL
tPZH
Propagation Delay
Sn to Zn
Propagation Delay
Sn to Zn
Propagation Delay
In to Zn
Propagation Delay
In to Zn
Output Enable Time
tPZL Output Enable Time
tPHZ Output Disable Time
tPLZ Output Disable Time
Note 8: Voltage Range 3.3 is 3.3V ±0.3V
Voltage Range 5.0 is 5.0V ±0.5V
VCC
(V)
(Note 8)
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
54AC
TA = −55˚C
to +125˚C
CL = 50 pF
Min Max
1.0 18.0
1.0 12.5
1.0 18.5
1.0 13.5
1.0 17.0
1.0 11.5
1.0 15.0
1.0 11.5
1.0 9.0
1.0 7.0
1.0 9.5
1.0 8.0
1.0 10.5
1.0 9.0
1.0 9.5
1.0 8.0
AC Electrical Characteristics
Symbol
Parameter
tPLH Propagation Delay
Sn to Zn
tPHL Propagation Delay
Sn to Zn
tPLH Propagation Delay
In to Zn
tPHL Propagation Delay
In to Zn
tPZH
Output Enable Time
tPZL Output Enable Time
tPHZ Output Disable Time
tPLZ Output Disable Time
Note 9: Voltage Range 5.0 is 5.0V ±0.5V
VCC
(V)
(Note 9)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
54ACT
TA = −55˚C
to +125˚C
CL = 50 pF
Min Max
1.0 14.5
1.0 16.0
1.0 12.0
1.0 13.5
1.0 9.5
1.0 9.5
1.0 11.0
1.0 9.0
Capacitance
Symbol
CIN
CPD
Parameter
Input Capacitance
Power Dissipation
Capacitance
Typ
4.5
50.0
Units
pF
pF
Conditions
VCC = OPEN
VCC = 5.0V
www.national.com
6
Units
ns
ns
ns
ns
ns
ns
ns
ns
Units
ns
ns
ns
ns
ns
ns
ns
ns
Fig.
No.
Fig.
No.
6 Page | ||
Seiten | Gesamt 8 Seiten | |
PDF Download | [ 54ACT253 Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
54ACT251 | 8-Input Multiplexer | National Semiconductor |
54ACT251 | 54AC251 54ACT251 8-Input Multiplexer with TRI-STATE Output (Rev. B) | Texas Instruments |
54ACT253 | Dual 4-Input Multiplexer | National Semiconductor |
54ACT253 | Dual 4-Input Multiplexer with TRI-STATE Outputs | Texas Instruments |
54ACT257 | Quad 2-Input Multiplexer | National Semiconductor |
Teilenummer | Beschreibung | Hersteller |
CD40175BC | Hex D-Type Flip-Flop / Quad D-Type Flip-Flop. |
Fairchild Semiconductor |
KTD1146 | EPITAXIAL PLANAR NPN TRANSISTOR. |
KEC |
www.Datenblatt-PDF.com | 2020 | Kontakt | Suche |