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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Low-Voltage CMOS Quad 2-Input Multiplexer
With 5V-Tolerant Inputs (Non-Inverting)
The MC74LCX157 is a high performance, quad 2-input multiplexer operating from a 2.7 to 3.6V supply. High impedance TTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance. A VI specification of 5.5V allows MC74LCX157 inputs to be safely driven from 5V devices. Four bits of data from two sources can be selected using the Select and Enable inputs. The four outputs present the selected data in the true (non-inverted) form. The MC74LCX157 can also be used as a function generator. Current drive capability is 24mA at the outputs.
MC74LCX157
LOW-VOLTAGE CMOS QUAD 2-INPUT MULTIPLEXER
* * * * * *
Designed for 2.7 to 3.6V VCC Operation 5V Tolerant Inputs -- Interface Capability With 5V TTL Logic LVTTL Compatible LVCMOS Compatible 24mA Balanced Output Sink and Source Capability
M SUFFIX 16-LEAD PLASTIC SOIC EIAJ PACKAGE CASE 966-01 D SUFFIX 16-LEAD PLASTIC SOIC PACKAGE CASE 751B-05
Near Zero Static Supply Current (10A) Substantially Reduces System Power Requirements * Latchup Performance Exceeds 500mA
* ESD Performance: Human Body Model >2000V; Machine Model >200V
VCC 16
E 15
I0c 14
I1c 13
Zc 12
I0d 11
I1d 10
Zd 9
SD SUFFIX 16-LEAD PLASTIC SSOP PACKAGE CASE 940B-03
DT SUFFIX 16-LEAD PLASTIC TSSOP PACKAGE CASE 948F-01 1 S 2 I0a 3 I1a 4 Za 5 I0b 6 I1b 7 Zb 8 GND
PIN NAMES Figure 1. 16-Lead Pinout (Top View)
Pins I0n I1n E S Zn Function Source 0 Data Inputs Source 1 Data Inputs Enable Input Select Input Outputs
3/97
(c) Motorola, Inc. 1997
1
REV 1
MC74LCX157
S E I0a I1a I0b I1b I0c I1c I0d I1d
1
15 2 3
4
Za
5 6
7
Zb
14 13
12
Zc
11 10
9
Zd
Figure 2. Logic Diagram
TRUTH TABLE
Inputs E H L L L L S X H H L L I0n X X X L H I1n X L H X X Outputs Zn L L H L H
H = High Voltage Level; L = Low Voltage Level; X = High or Low Voltage Level ; For ICC Reasons DO NOT FLOAT Inputs
MOTOROLA
2
LCX DATA BR1339 -- REV 3
MC74LCX157
ABSOLUTE MAXIMUM RATINGS*
Symbol VCC VI VO IIK IOK Parameter DC Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current Value -0.5 to +7.0 -0.5 VI +7.0 -0.5 VO VCC + 0.5 -50 -50 +50 IO ICC IGND TSTG DC Output Source/Sink Current DC Supply Current Per Supply Pin DC Ground Current Per Ground Pin Storage Temperature Range 50 100 100 -65 to +150 Note 1. VI < GND VO < GND VO > VCC Condition Unit V V V mA mA mA mA mA mA C
* Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or conditions beyond those indicated may adversely affect device reliability. Functional operation under absolute-maximum-rated conditions is not implied. 1. Output in HIGH or LOW State. IO absolute maximum rating must be observed.
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VI VO IOH IOL IOH IOL TA t/V Supply Voltage Input Voltage Output Voltage (HIGH or LOW State) Parameter Operating Data Retention Only Min 2.0 1.5 0 0 Typ 3.3 3.3 Max 3.6 3.6 5.5 VCC -24 24 -12 12 -40 0 +85 10 Unit V V V mA mA mA mA C ns/V
HIGH Level Output Current, VCC = 3.0V - 3.6V LOW Level Output Current, VCC = 3.0V - 3.6V HIGH Level Output Current, VCC = 2.7V - 3.0V LOW Level Output Current, VCC = 2.7V - 3.0V Operating Free-Air Temperature Input Transition Rise or Fall Rate, VIN from 0.8V to 2.0V, VCC = 3.0V
DC ELECTRICAL CHARACTERISTICS
TA = -40C to +85C Symbol VIH VIL VOH Characteristic HIGH Level Input Voltage (Note 2.) LOW Level Input Voltage (Note 2.) HIGH Level Output Voltage Condition 2.7V VCC 3.6V 2.7V VCC 3.6V 2.7V VCC 3.6V; IOH = -100A VCC = 2.7V; IOH = -12mA VCC = 3.0V; IOH = -18mA VCC = 3.0V; IOH = -24mA VOL LOW Level Output Voltage 2.7V VCC 3.6V; IOL = 100A VCC = 2.7V; IOL= 12mA VCC = 3.0V; IOL = 16mA VCC = 3.0V; IOL = 24mA 2. These values of VI are used to test DC electrical characteristics only. VCC - 0.2 2.2 2.4 2.2 0.2 0.4 0.4 0.55 V Min 2.0 0.8 Max Unit V V V
LCX DATA BR1339 -- REV 3
3
MOTOROLA
MC74LCX157
DC ELECTRICAL CHARACTERISTICS (continued)
TA = -40C to +85C Symbol II ICC ICC Characteristic Input Leakage Current Quiescent Supply Current Condition 2.7V VCC 3.6V; 0V VI 5.5V 2.7 VCC 3.6V; VI = GND or VCC 2.7 VCC 3.6V; 3.6 VI 5.5V Increase in ICC per Input 2.7 VCC 3.6V; VIH = VCC - 0.6V Min Max 5.0 10 10 500 Unit A A A A
AC CHARACTERISTICS (tR = tF = 2.5ns; CL = 50pF; RL = 500)
Limits TA = -40C to +85C VCC = 3.0V to 3.6V Symbol tPLH tPHL tPLH tPHL tPLH tPHL Parameter Propagation Delay In to Zn Propagation Delay S to Zn Propagation Delay E to Zn Waveform 1 1,2 2 Min 1.5 1.5 1.5 1.5 1.5 1.5 Max 5.8 5.8 7.0 7.0 7.0 7.0 VCC = 2.7V Max 6.3 6.3 8.0 8.0 8.0 8.0 Unit ns ns ns
tOSHL Output-to-Output Skew 1.0 ns tOSLH (Note 3.) 1.0 3. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH); parameter guaranteed by design.
DYNAMIC SWITCHING CHARACTERISTICS
TA = +25C Symbol VOLP Characteristic Dynamic LOW Peak Voltage (Note 4.) Condition VCC = 3.3V, CL = 50pF, VIH = 3.3V, VIL = 0V Min Typ 0.8 Max Unit V
VOLV Dynamic LOW Valley Voltage (Note 4.) VCC = 3.3V, CL = 50pF, VIH = 3.3V, VIL = 0V 0.8 V 4. Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH-to-LOW or LOW-to-HIGH. The remaining output is measured in the LOW state.
CAPACITIVE CHARACTERISTICS
Symbol CIN COUT CPD Parameter Input Capacitance Output Capacitance Power Dissipation Capacitance Condition VCC = 3.3V, VI = 0V or VCC VCC = 3.3V, VI = 0V or VCC 10MHz, VCC = 3.3V, VI = 0V or VCC Typical 7 8 25 Unit pF pF pF
MOTOROLA
4
LCX DATA BR1339 -- REV 3
MC74LCX157
2.7V In, S 1.5V 1.5V 0V tPHL Zn 1.5V tPLH VOH 1.5V VOL WAVEFORM 1 - NON-INVERTING PROPAGATION DELAYS tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns 2.7V E, S 1.5V 1.5V 0V tPHL Zn 1.5V tPLH VOH 1.5V VOL WAVEFORM 2 - INVERTING PROPAGATION DELAYS tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns
Figure 3. AC Waveforms
VCC
PULSE GENERATOR RT
DUT CL RL
CL = 50pF or equivalent (Includes jig and probe capacitance) RL = R1 = 500 or equivalent RT = ZOUT of pulse generator (typically 50)
Figure 4. Test Circuit
LCX DATA BR1339 -- REV 3
5
MOTOROLA
MC74LCX157
OUTLINE DIMENSIONS
D SUFFIX PLASTIC SOIC PACKAGE CASE 751B-05 ISSUE J
9
-A -
16
-B -
1 8
P 8 PL 0.25 (0.010)
M
B
M
G F
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. DIM A B C D F G J K M P R MILLIMETERS MIN MAX 9.80 10.00 4.00 3.80 1.75 1.35 0.49 0.35 1.25 0.40 1.27 BSC 0.25 0.19 0.25 0.10 7 0 6.20 5.80 0.50 0.25 INCHES MIN MAX 0.386 0.393 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0 7 0.229 0.244 0.010 0.019
K C -T SEATING -
PLANE
R X 45
M D 16 PL 0.25 (0.010)
M
J
T
B
S
A
S
M SUFFIX PLASTIC SOIC EIAJ PACKAGE CASE 966-01 ISSUE O
16
9
LE Q1 E HE M_ L DETAIL P
1
8
Z D e A VIEW P
NOTES: 1 DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2 CONTROLLING DIMENSION: MILLIMETER. 3 DIMENSIONS D AND E DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS AND ARE MEASURED AT THE PARTING LINE. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4 TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 5 THE LEAD WIDTH DIMENSION (b) DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE LEAD WIDTH DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE BETWEEN PROTRUSIONS AND ADJACENT LEAD TO BE 0.46 ( 0.018). DIM A A1 b c D E e HE L LE M Q1 Z MILLIMETERS MIN MAX --2.05 0.05 0.20 0.35 0.50 0.18 0.27 9.90 10.50 5.10 5.45 1.27 BSC 7.40 8.20 0.50 0.85 1.10 1.50 10 _ 0_ 0.70 0.90 --0.78 INCHES MIN MAX --0.081 0.002 0.008 0.014 0.020 0.007 0.011 0.390 0.413 0.201 0.215 0.050 BSC 0.291 0.323 0.020 0.033 0.043 0.059 10 _ 0_ 0.028 0.035 --0.031
c
b 0.13 (0.005)
M
A1 0.10 (0.004)
MOTOROLA
6
LCX DATA BR1339 -- REV 3
MC74LCX157
OUTLINE DIMENSIONS
SD SUFFIX PLASTIC SSOP PACKAGE CASE 940B-03 ISSUE B
16X
K REF 0.12 (0.005)
M
TU
S
V
S
0.25 (0.010) N
L/2 L
PIN 1 IDENT
16
9
M B N F
1
8
DETAIL E -U- J
0.20 (0.008)
M
TU
S
0.076 (0.003) -T-
SEATING PLANE
C D G H
DETAIL E
LCX DATA BR1339 -- REV 3
7
EEEE CCCC EEEE CCCC
K1 SECTION N-N -W-
A -V-
K
J1
NOTES: 6 DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 7 CONTROLLING DIMENSION: MILLIMETER. 8 DIMENSION A DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 9 DIMENSION B DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 10 DIMENSION K DOES NOT INCLUDE DAMBAR PROTRUSION/INTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN EXCESS OF K DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR INTRUSION SHALL NOT REDUCE DIMENSION K BY MORE THAN 0.07 (0.002) AT LEAST MATERIAL CONDITION. 11 TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 12 DIMENSION A AND B ARE TO BE DETERMINED AT DATUM PLANE -W-. DIM A B C D F G H J J1 K K1 L M MILLIMETERS MIN MAX 6.07 6.33 5.20 5.38 1.73 1.99 0.05 0.21 0.63 0.95 0.65 BSC 0.73 0.90 0.09 0.20 0.09 0.16 0.25 0.38 0.25 0.33 7.65 7.90 0_ 8_ INCHES MIN MAX 0.238 0.249 0.205 0.212 0.068 0.078 0.002 0.008 0.024 0.037 0.026 BSC 0.028 0.035 0.003 0.008 0.003 0.006 0.010 0.015 0.010 0.013 0.301 0.311 0_ 8_
MOTOROLA
MC74LCX157
OUTLINE DIMENSIONS
DT SUFFIX PLASTIC TSSOP PACKAGE CASE 948F-01 ISSUE O
16X K REF
0.10 (0.004) 0.15 (0.006) T U
S
M
TU
S
V
S
K
16
2X
L/2
9
J1 B -U-
L
PIN 1 IDENT. 1 8
J
N 0.25 (0.010) 0.15 (0.006) T U
S
A -V- N F DETAIL E
C 0.10 (0.004) -T- SEATING
PLANE
H D G
DETAIL E
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MOTOROLA 8
CCC EE CCC EE CCC
M
K1
SECTION N-N
NOTES: 1 DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2 CONTROLLING DIMENSION: MILLIMETER. 3 DIMENSION A DOES NOT INCLUDE MOLD FLASH. PROTRUSIONS OR GATE BURRS. MOLD FLASH OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4 DIMENSION B DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.25 (0.010) PER SIDE. 5 DIMENSION K DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE K DIMENSION AT MAXIMUM MATERIAL CONDITION. 6 TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 7 DIMENSION A AND B ARE TO BE DETERMINED AT DATUM PLANE -W-. DIM A B C D F G H J J1 K K1 L M MILLIMETERS MIN MAX 4.90 5.10 4.30 4.50 --- 1.20 0.05 0.15 0.50 0.75 0.65 BSC 0.18 0.28 0.09 0.20 0.09 0.16 0.19 0.30 0.19 0.25 6.40 BSC 0_ 8_ INCHES MIN MAX 0.193 0.200 0.169 0.177 --- 0.047 0.002 0.006 0.020 0.030 0.026 BSC 0.007 0.011 0.004 0.008 0.004 0.006 0.007 0.012 0.007 0.010 0.252 BSC 0_ 8_
-W-
MC74LCX157/D LCX DATA BR1339 -- REV 3

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