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TECHNICAL DATA
IN74ACT253
Dual 4-Input Data Selector/Multiplexer with 3-State Otputs
High-Speed Silicon-Gate CMOS
The IN74ACT253 is identical in pinout to the LS/ALS253, HC/HCT253. The IN74ACT253 may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs. The Address Inputs select one of four Data Inputs from each multiplexer. Each multiplexer has an active-low Output Enable control and a three-state noninverting output. * TTL/NMOS Compatible Input Levels * Outputs Directly Interface to CMOS, NMOS, and TTL * Operating Voltage Range: 4.5 to 5.5 V * Low Input Current: 1.0 A; 0.1 A @ 25C * Outputs Source/Sink 24 mA
ORDERING INFORMATION IN74ACT253N Plastic IN74ACT253D SOIC TA = -40 to 85 C for all packages
PIN ASSIGNMENT LOGIC DIAGRAM
FUNCTION TABLE
Inputs A1 X L L H PIN 16 =VCC PIN 8 = GND H A0 X L H L H Output Enable H L L L L Output Y Z D0 D1 D2 D3
D0,D1...D3=the level of the respective Data Input Z = high impedance X = don't care
Rev. 00
IN74ACT253
MAXIMUM RATINGS*
Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL
*
Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Sink/Source Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package)
Value -0.5 to +7.0 -0.5 to VCC +0.5 -0.5 to VCC +0.5 20 50 50 750 500 -65 to +150 260
Unit V V V mA mA mA mW C C
Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. +Derating - Plastic DIP: - 10 mW/C from 65 to 125C SOIC Package: : - 7 mW/C from 65 to 125C
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VIN, VOUT TJ TA IOH IOL tr, tf
*
Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage, Output Voltage (Referenced to GND) Junction Temperature (PDIP) Operating Temperature, All Package Types Output Current - High Output Current - Low Input Rise and Fall Time (except Schmitt Inputs)
*
Min 4.5 0 -40
Max 5.5 VCC 140 +85 -24 24
Unit V V C C mA mA ns/V
VCC =4.5 V VCC =5.5 V
0 0
10 8.0
VIN from 0.8 V to 2.0 V
This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, VIN and VOUT should be constrained to the range GND(VIN or VOUT)VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused outputs must be left open.
Rev. 00
IN74ACT253
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
VCC Symbol VIH VIL VOH Parameter Minimum HighLevel Input Voltage Maximum Low Level Input Voltage Minimum HighLevel Output Voltage Test Conditions VOUT=0.1 V or VCC-0.1 V VOUT= 0.1 V or VCC-0.1 V IOUT -50 A VIN= VIL or VIH IOH=-24 mA IOH=-24 mA VOL Maximum LowLevel Output Voltage IOUT 50 A
* *
Guaranteed Limits 25 C 2.0 2.0 0.8 0.8 4.4 5.4 3.86 4.86 0.1 0.1 0.36 0.36 0.1 0.5 -40C to 85C 2.0 2.0 0.8 0.8 4.4 5.4 3.76 4.76 0.1 0.1 0.44 0.44 1.0 5.0 A A V Unit V V V
V 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 5.5 5.5
VIN= VIL or VIH IOL=24 mA IOL=24 mA VIN=VCC or GND
IIN IOZ
Maximum Input Leakage Current Maximum ThreeState Leakage Current Additional Max ICC/Input +Minimum Dynamic Output Current +Minimum Dynamic Output Current Maximum Quiescent Supply Current (per Package)
VIN (OE)=VIL, VIH VIN=VCC, GND VOUT=VCC, GND VIN=VCC - 2.1 V VOLD=1.65 V Max VOHD=3.85 V Min VIN=VCC or GND
ICCT IOLD IOHD ICC
5.5 5.5 5.5 5.5 8.0
1.5 75 -75 80
mA mA mA A
*
All outputs loaded; thresholds on input associated with output under test. +Maximum test duration 2.0 ms, one output loaded at a time.
Rev. 00
IN74ACT253
AC ELECTRICAL CHARACTERISTICS (VCC=5.0 V 10%, CL=50pF,Input tr=tf=3.0 ns)
Guaranteed Limits Symbol tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ CIN Parameter Propagation Delay,Address to Output Y (Figure 1) Propagation Delay,Address to Output Y (Figure 1) Propagation Delay, Data to Output Y (Figure 1) Propagation Delay, Data to Output Y (Figure 1) Propagation Delay, Output Enable to Y (Figure 2) Propagation Delay, Output Enable to Y (Figure 2) Propagation Delay, Output Enable to Y (Figure 2) Propagation Delay, Output Enable to Y (Figure 2) Maximum Input Capacitance 25 C Min 2.0 3.0 2.5 3.5 2.0 2.0 3.0 2.5 4.5 Max 11.5 13.0 10.0 11.0 7.5 8.0 9.5 7.5 -40C to 85C Min 2.0 2.5 2.0 3.0 1.5 1.5 2.5 2.0 4.5 Max 13.0 14.5 11.0 12.5 8.5 9.0 10.0 8.5 ns ns ns ns ns ns ns ns pF Unit
Typical @25C,VCC=5.0 V CPD Power Dissipation Capacitance 50 pF
Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
Rev. 00
IN74ACT253
EXPANDED LOGIC DIAGRAM
Rev. 00
IN74ACT253
N SUFFIX PLASTIC DIP (MS - 001BB)
A
Dimension, mm
16 9 B
Symbol A
MIN 18.67 6.1
MAX 19.69 7.11 5.33
1
8
B C
F L
D F
0.36 1.14 2.54 7.62 0 2.92 7.62 0.2 0.38
0.56 1.78
C -T- SEATING
PLANE
G H
H J
N G D 0.25 (0.010) M T K M
J K L M N
10 3.81 8.26 0.36
NOTES: 1. Dimensions "A", "B" do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side.
D SUFFIX SOIC (MS - 012AC) Dimension, mm
A 16 9
Symbol A
MIN 9.8 3.8 1.35 0.33 0.4 1.27 5.72 0 0.1 0.19 5.8 0.25
MAX 10 4 1.75 0.51 1.27
H
B
P
B C
1
G
8 C R x 45
D F G
-TD 0.25 (0.010) M T C M K
SEATING PLANE
J
F
M
H J K M P R
8 0.25 0.25 6.2 0.5
NOTES: 1. Dimensions A and B do not include mold flash or protrusion. 2. Maximum mold flash or protrusion 0.15 mm (0.006) per side for A; for B 0.25 mm (0.010) per side.
Rev. 00

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