TECHNICAL DATA
KK74ACT258
Quad 2-Input Data Selector/Multiplexer
with 3-State Outputs
High-Speed Silicon-Gate CMOS
The KK74ACT258 is identical in pinout to the LS/ALS258,
HC/HCT258. The KK74ACT258 may be used as a level converter for
interfacing TTL or NMOS outputs to High Speed CMOS inputs.
This device selects a (4-bit) nibble from either the A or B inputs as
determined by the Select input. The nibble is presented at the outputs in
inverted from when the Output Enable pin is at a low level. A high level
on the Output Enable pin switches the outputs into the high-impedance
state.
鈥?/div>
TTL/NMOS Compatible Input Levels
鈥?/div>
Outputs Directly Interface to CMOS, NMOS, and TTL
鈥?/div>
Operating Voltage Range: 4.5 to 5.5 V
鈥?/div>
Low Input Current: 1.0
碌A(chǔ);
0.1
碌A(chǔ)
@ 25擄C
鈥?/div>
Outputs Source/Sink 24 mA
ORDERING INFORMATION
KK74ACT258N Plastic
KK74ACT258D SOIC
T
A
= -40擄 to 85擄 C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
Output
Enable
H
L
L
PIN 16 =V
CC
PIN 8 = GND
Select
X
L
H
Outputs
Y0-Y3
Z
A0-A3
B0-B3
X=don鈥檛 care
Z = high-impedance state
A0-A3,B0-B3=the levels of the respective
Nibble Inputs
1
KK74ACT258D相關(guān)型號(hào)PDF文件下載
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