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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Low-Voltage Quiet CMOS 1-of-8 Decoder/Demultiplexer
The MC74LVQ138 is a high performance, 1-of-8 decoder/ demultiplexer 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. The MC74LVQ138 is suitable for memory address decoding and other TTL level bus oriented applications. The MC74LVQ138 high-speed 1-of-8 decoder/demultiplexer accepts three binary weighted inputs (A0, A1, A2) and, when enabled, provides eight mutually exclusive active-LOW outputs (O0-O7). The LVQ138 features three Enable inputs, two active-LOW (E1, E2) and one active-HIGH (E3). All outputs will be HIGH unless E1 and E2 are LOW, and E3 is HIGH. This multiple enabled function allows easy parallel expansion of the device to a 1-of-32 (5 lines to 32 lines) decoder with just four LVQ138 devices and one inverter (See Figure 1). The LVQ138 can be used as an 8-output demultiplexer by using one of the active-LOW Enable inputs as the data input and the other Enable inputs as strobes. The Enable inputs which are not used must be permanently tied to their appropriate active-HIGH or active-LOW state. Current drive capability is 12mA at the outputs.
16
MC74LVQ138
LVQ
LOW-VOLTAGE CMOS DECODER/DEMULTIPLEXER
16 1
D SUFFIX PLASTIC SOIC CASE 751B-05
M SUFFIX PLASTIC SOIC EIAJ CASE 966-01
1
* Designed for 2.7 to 3.6V VCC Operation - Ideal for Low Power/Low
Noise Applications
* Guaranteed Simultaneous Switching Noise Level and Dynamic
Threshold Performance
16 1
SD SUFFIX PLASTIC SSOP CASE 940B-03
* Guaranteed Skew Specifications * Guaranteed Incident Wave Switching into 75 * Low Static Supply Current (10A) Substantially Reduces System Power
Requirements
16
* Latchup Performance Exceeds 500mA * ESD Performance: Human Body Model >2000V
1
DT SUFFIX PLASTIC TSSOP CASE 948F-01
Pinout: 16-Lead Plastic Package (Top View)
VCC 16 O0 15 O1 14 O2 13 O3 12 O4 11 O5 10 O6 9
PIN NAMES
Pins A0-A2 E1-E2 E3 O0-O7 Function Address Inputs Enable Inputs Enable Input Outputs
1 A0
2 A1
3 A2
4 E1
5 E2
6 E3
7 O7
8 GND
1/96
(c) Motorola, Inc. 1996
1
REV 1
MC74LVQ138
LOGIC DIAGRAM
A2
3
A1
2
A0
1
E1
4
E2
5
E3
6
7
9
10
11
12
13
14
15
O7
O6
O5
O4
O3
O2
O1
O0
INPUTS E1 H X X L L L L L L L L E2 X H X L L L L L L L L E3 X X L H H H H H H H H A0 X X X L H L H L H L H A1 X X X L L H H L L H H A2 X X X L L L L H H H H O0 H H H L H H H H H H H O1 H H H H L H H H H H H O2 H H H H H L H H H H H
OUTPUTS O3 H H H H H H L H H H H O4 H H H H H H H L H H H O5 H H H H H H H H L H H O6 H H H H H H H H H L H O7 H H H H H H H H H H L
H = High Voltage Level; L = Low Voltage Level; X = High or Low Voltage Level and Transitions Are Acceptable; For ICC reasons, DO NOT FLOAT Inputs
A0 A1 A2 A3 A4 H 123 A0 A1 A2 E A0 A1 A2 123 E A0 A1 A2 123 E A0 A1 A2
`04
123 E
O0 O1 O2 O3 O4 O5 O6 O7
O0 O1 O2 O3 O4 O5 O6 O7
O0 O1 O2 O3 O4 O5 O6 O7
O0 O1 O2 O3 O4 O5 O6 O7
O0
O31
Figure 1. Expansion to 1-of-32 Decoding
MOTOROLA
2
LVQ DATA BR1478
MC74LVQ138
ABSOLUTE MAXIMUM RATINGS*
Symbol VCC VI VO IIK Parameter DC Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current Value -0.5 to +7.0 -0.5 VI VCC + 0.5V -0.5 VO VCC + 0.5 -20 +20 IOK DC Output Diode Current -20 +20 IO ICC IGND TSTG DC Output Source/Sink Current DC Supply Current DC Ground Current Storage Temperature Range 50 200 200 -65 to +150 Output in HIGH or LOW State VI = -0.5V VI = VCC + 0.5V VO = -0.5V VI = VCC + 0.5V Condition Unit V V V mA 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.
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VI VO TA V/t Supply Voltage Input Voltage Output Voltage Operating Free-Air Temperature Input Transition Rise or Fall Rate, VIN from 0.8V to 2.0V, VCC = 3.0V Parameter Min 2.0 0 0 -40 0 Typ 3.3 Max 3.6 VCC VCC +85 125 Unit V V V C mV/ns
DC ELECTRICAL CHARACTERISTICS
TA = -40C to +85C Symbol VIH VIL VOH Characteristic HIGH Level Input Voltage (Note 1) LOW Level Input Voltage (Note 1) HIGH Level Output Voltage Condition 2.7V VCC 3.6V, VO = 0.1V or VCC - 0.1V 2.7V VCC 3.6V, VO = 0.1V or VCC - 0.1V 2.7V VCC 3.6V; IOH = -50A VCC = 2.7V; IOH = -12mA VCC = 3.0V; IOH = -12mA VOL LOW Level Output Voltage 2.7V VCC 3.6V; IOL = 50A 2.7V VCC 3.6V; IOL= 12mA II IOLD IOHD ICC Quiescent Supply Current Input Leakage Current Minimum Dynamic Output Current (Note 2) 2.7V VCC 3.6V; VI= VCC, GND VCC = 3.6V; VOLD = 0.8V Max VCC = 3.6V; VOHD = 2.0V Min 2.7V VCC 3.6V; VI = VCC, GND VCC - 0.1 2.2 2.48 0.1 0.4 1.0 36 -25 10 A mA mA A V Min 2.0 0.8 Max Unit V V V
1. These values of VI are used to test DC electrical characteristics only. Functional test should use VIH 2.4V, VIL 0.5V. 2. Incident wave switching on transmission lines with impedances as low as 75 for commercial temperature range is guaranteed. Maximum test duration is 2ms, one output loaded at a time.
LCX DATA BR1478
3
MOTOROLA
MC74LVQ138
DYNAMIC SWITCHING CHARACTERISTICS (VCC = 3.3V)
TA = +25C Symbol VOLP VOLV VIHD VILD Characteristic Dynamic LOW Peak Voltage (Note 1) Dynamic LOW Valley Voltage (Note 1) High Level Dynamic Input Voltage (Note 2) Low Level Dynamic Input Voltage (Note 2) Condition CL = 50pF, VIH = 3.3V, VIL = 0V CL = 50pF, VIH = 3.3V, VIL = 0V Input-Under-Test Switching 0V to Threshold, f=1MHz Input-Under-Test Switching 3.3V to Threshold, f=1MHz Min Typ 0.6 -0.5 1.5 1.5 Max 1.0 -1.0 2.0 0.8 Unit V V V V
1. Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH-to-LOW. The remaining output is measured in the LOW state. 2. Number of data inputs is defined as "n" switching, "n-1" inputs switching 0V to 3.3V.
AC CHARACTERISTICS (tR = tF = 2.5ns; CL = 50pF; RL = 500)
Limits TA = +25C VCC = 3.0V to 3.6V Symbol tPLH tPHL tPLH tPHL tPLH tPHL Parameter Propagation Delay An to On Propagation Delay E1, E2 to On Propagation Delay E3 to On Min 1.5 1.5 1.5 1.5 1.5 1.5 Typ 9.0 9.0 12.0 10.0 11.5 10.0 Max 13.0 13.0 15.0 13.0 14.5 12.5 VCC = 2.7V Min 1.5 1.5 1.5 1.5 1.5 1.5 Typ 10.0 14.0 13.0 12.0 13.0 11.0 Max 14.5 17.0 17.0 15.0 16.5 14.0 TA = -40C to +85C VCC = 3.0V to 3.6V Min 1.5 1.5 1.5 1.5 1.5 1.5 Max 15.0 15.0 16.0 15.0 16.5 14.5 VCC = 2.7V Max 17.0 20.0 20.0 17.0 19.0 16.5 Unit ns ns ns
tOSHL Output-to-Output Skew 1.0 1.5 1.0 1.5 1.5 1.5 ns tOSLH (Note 1) 1.0 1.5 1.0 1.5 1.5 1.5 1. 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.
CAPACITIVE CHARACTERISTICS
Symbol CPD CIN Parameter Power Dissipation Capacitance Input Capacitance Condition 10MHz, VCC = 3.3V, VI = 0V or VCC VCC = Open, VI = 0V or VCC Typical 26 4.5 Unit pF pF
MOTOROLA
4
LVQ DATA BR1478
MC74LVQ138
VCC An, E3 50% VCC tPHL On 50% VCC 50% VCC 0V tPLH VOH 50% VCC VOL WAVEFORM 1: PROPAGATION DELAYS FOR INVERTING OUTPUTS On 50% VCC 50% VCC An, E1, E2 50% VCC tPHL 50% VCC
VCC
0V tPLH VOH
VOL WAVEFORM 2: PROPAGATION DELAYS FOR NON-INVERTING OUTPUTS
Figure 1. 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 2. Test Circuit
LCX DATA BR1478
5
MOTOROLA
MC74LVQ138
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 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0 7 5.80 6.20 0.25 0.50 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 7 0 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
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
16
9
LE Q1 E HE M_ L DETAIL P
1
8
Z D e A VIEW P
c
b 0.13 (0.005)
M
A1 0.10 (0.004)
MOTOROLA
6
LVQ DATA BR1478
MC74LVQ138
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
A -V- 0.20 (0.008)
M
-U- J
TU
S
0.076 (0.003) -T-
SEATING PLANE
C D G H
DETAIL E
LCX DATA BR1478
7
EEEE CCCC EEEE CCCC EEEE CCCC EEEE CCCC
K K1 SECTION N-N -W-
DETAIL E
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
MC74LVQ138
OUTLINE DIMENSIONS
DT SUFFIX PLASTIC TSSOP PACKAGE CASE 948F-01 ISSUE O
16X K REF
0.15 (0.006) T U
S
2X
L/2
16
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
EEC CC EEC CC EEC CC EEC CC CCC
K K1 M
0.10 (0.004)
M
TU
S
V
S
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-
*MC74LVQ138/D*
MC74LVQ138/D LVQ DATA BR1478

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