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74F723A 数据表(PDF) 2 Page - NXP Semiconductors

部件名 74F723A
功能描述  Quad 2-to-1 data selector multiplexer 3-State
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制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 PHILIPS - NXP Semiconductors

74F723A 数据表(HTML) 2 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74F723A/74F723–1/
74F725A/74F725–1
Multiplexers
74F723A
Quad 3-to-1 Data Selector Multiplexer (3-State)
74F723-1 Quad 3-to-1 Data Selector Multiplexer with 30
W Equivalent Output Termination Impedance (3-State)
74F725A
Quad 4-to-1 Data Selector Multiplexer
74F725-1 Quad 4-to-1 Data Selector Multiplexer with 30
W Equivalent Output Termination Impedance
2
1990 Dec 13
853-1369 01257
FEATURES for 74F723A/74F723-1
Consists of four 3-to-1 Multiplexers
High impedance PNP base inputs for reduced loading
(20
µA in High and Low states)
Inverting or non-inverting data path capability by an inverting (INV)
input
Designed for address multiplexing of dynamic RAM and other
applications
Multiple side pins for V
CC and GND to reduce lead inductance
(improves speed and noise immunity)
3-State outputs sink 64mA (74F723A only)
30W termination impedance on each output – 74F723-1
FEATURES for 74F725A/74F725-1
Consists of four 4-to-1 Multiplexers
High impedance PNP base inputs for reduced loading
(20
µA in High and Low states)
Equivalent to two 74F253s without 3-State
Outputs sink 64mA (74F725A only)
30W termination impedance on each output – 74F725-1
DESCRIPTION
The 74F723A/74F723-1 consist of four 3-to-1 multiplexers designed
for address multiplexing of dynamic RAMs and other multiplexing
applications. Select (S0, S1) inputs control which line is to be
selected, as defined in the Function Table for 74F723A/74F723-1.
When the invering input (INV) is Low, the input data path is inverted.
To improve speed and noise immunity, VCC and GND side pins are
used. The 3-State outputs source 15mA and sink 64mA. The
74F723-1 is the same as 74F723A except that it has a 30
W
temination impedance on each output to reduce line noise and the
3-State outputs sink 5mA.
The 74F725A/74F725-1 consist of four 4-to1 multiplexers designed
for general multiplexing purpose. The select (S0, S1) inputs control
which line is to be selected, as defined in the Function Table for
74F725A/725-1. The outputs source 15mA and sink 64mA. The
74F725-1 is the same as the 74F725A except that it has a 30
W
termination impedance on each output to reduce line noise and the
outputs sink 5mA.
TYPE
TYPICAL
PROPAGATION DELAY
TYPICAL SUPPLY
CURRENT
(TOTAL)
74F723A
5.5ns
25mA
74F723-1
7.0ns
26mA
74F725A
5.5ns
20mA
74F725-1
6.5ns
20mA
ORDERING INFORMATION
DESCRIPTION
COMMERCIAL RANGE
VCC = 5V ± 10%
Tamb = 0° C to +70°C
PKG DWG
#
20-Pin Plastic Slim
N74F723AN, N74F723-1N,
SOT222 1
DIP (300 mil)
,,
N74F725AN, N74F725-1N
SOT222-1
24 Pin Plastic SOL
N74F723AD, N74F723-1D,
SOT137 1
24-Pin Plastic SOL
,,
N74F725AD, N74F725-1D
SOT137-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
TYPE
PINS
DESCRIPTION
74F(U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
Dna, Dnb, Dnc
Data inputs
1.0/0.066
20
µA/40µA
74F723A/
S0, S1
Select inputs
1.0/0.033
20
µA/20µA
74F723-1
OE
Output Enable input
1.0/0.033
20
µA/20µA
INV
Output inverting input
1.0/0.033
20
µA/20µA
74F723A
Q0 - Q3
Data outputs for 74F723A
750/106.7
15mA/64mA
74F723-1
Q0 - Q3
Data outputs for 74F723-1
750/8.33
15mA/5mA
74F725A/
Dna, Dnb, Dnc, Dnd
Data inputs
1.0/0.066
20
µA/40µA
74F725-1
S0, S1
Select inputs
1.0/0.033
20
µA/20µA
74F725A
Q0 - Q3
Data outputs
750/106.7
15mA/64mA
74F725-1
Q0 - Q3
Data outputs
750/8.33
15mA/5mA
NOTE: One (1.0) FAST Unit Load (U.L.) is defined as: 20
µA in the High state and 0.6mA in the Low state.


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