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SN54HC138, SN74HC138 3 LINE TO 8 LINE DECODERS/DEMULTIPLEXERS
SCLS107E - DECEMBER 1982 - REVISED SEPTEMBER 2003
D Targeted Specifically for High-Speed D D D D D D D
Memory Decoders and Data-Transmission Systems Wide Operating Voltage Range of 2 V to 6 V Outputs Can Drive Up To 10 LSTTL Loads Low Power Consumption, 80-A Max ICC Typical tpd = 15 ns 4-mA Output Drive at 5 V Low Input Current of 1 A Max Incorporate Three Enable Inputs to Simplify Cascading and/or Data Reception
SN54HC138 . . . J OR W PACKAGE SN74HC138 . . . D, DB, N, NS, OR PW PACKAGE (TOP VIEW)
A B C G2A G2B G1 Y7 GND
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
VCC Y0 Y1 Y2 Y3 Y4 Y5 Y6
description/ordering information
The 'HC138 devices are designed to be used in high-performance memory-decoding or datarouting applications requiring very short propagation delay times. In high-performance memory systems, these decoders can be used to minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory are usually less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.
SN54HC138 . . . FK PACKAGE (TOP VIEW)
B A NC VCC Y0 C G2A NC G2B G1
4 5 6 7 8 3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
Y1 Y2 NC Y3 Y4
NC - No internal connection
ORDERING INFORMATION
TA PDIP - N PACKAGE Tube of 25 Tube of 40 SOIC - D -40 C 85C -40C to 85 C SOP - NS SSOP - DB Reel of 2500 Reel of 250 Reel of 2000 Reel of 2000 Tube of 90 TSSOP - PW CDIP - J -55 C 125C -55C to 125 C CFP - W LCCC - FK Reel of 2000 Reel of 250 Tube of 25 Tube of 150 Tube of 55 ORDERABLE PART NUMBER SN74HC138N SN74HC138D SN74HC138DR SN74HC138DT SN74HC138NSR SN74HC138DBR SN74HC138PW SN74HC138PWR SN74HC138PWT SNJ54HC138J SNJ54HC138W SNJ54HC138FK SNJ54HC138J SNJ54HC138W HC138 HC138 HC138 HC138 TOP-SIDE MARKING SN74HC138N
SNJ54HC138FK Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
On products compliant to MIL PRF 38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters.
Copyright 2003, Texas Instruments Incorporated
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
Y7 GND NC Y6 Y5
1
SN54HC138, SN74HC138 3 LINE TO 8 LINE DECODERS/DEMULTIPLEXERS
SCLS107E - DECEMBER 1982 - REVISED SEPTEMBER 2003
description/ordering information (continued)
The conditions at the binary-select inputs at the three enable inputs select one of eight output lines. Two active-low and one active-high enable inputs reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications.
FUNCTION TABLE INPUTS ENABLE G1 X X L H H H H H H H H G2A H X X L L L L L L L L G2B X H X L L L L L L L L C X X X L L L L H H H H SELECT B X X X L L H H L L H H A X X X L H L H L H L H Y0 H H H L H H H H H H H Y1 H H H H L H H H H H H Y2 H H H H H L H H H H H OUTPUTS Y3 H H H H H H L H H H H Y4 H H H H H H H L H H H Y5 H H H H H H H H L H H Y6 H H H H H H H H H L H Y7 H H H H H H H H H H L
2
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
SN54HC138, SN74HC138 3 LINE TO 8 LINE DECODERS/DEMULTIPLEXERS
SCLS107E - DECEMBER 1982 - REVISED SEPTEMBER 2003
logic diagram (positive logic)
15 1 14 Y1
Y0
A
B
2 13 Y2
C
3
12
Y3
11
Y4
10 G1 6 9
Y5
Y6 G2A 4 7 Y7
G2B
5
Pin numbers shown are for the D, DB, J, N, NS, PW, and W packages.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 7 V Input clamp current, IIK (VI < 0 or VI > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Package thermal impedance, JA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73C/W DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67C/W NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65C to 150C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51-7.
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3
SN54HC138, SN74HC138 3 LINE TO 8 LINE DECODERS/DEMULTIPLEXERS
SCLS107E - DECEMBER 1982 - REVISED SEPTEMBER 2003
recommended operating conditions (see Note 3)
SN54HC138 MIN VCC VIH Supply voltage VCC = 2 V VCC = 4.5 V VCC = 6 V VCC = 2 V VIL VI VO t/v Low-level input voltage Input voltage Output voltage VCC = 2 V VCC = 4.5 V VCC = 6 V VCC = 4.5 V VCC = 6 V 0 0 2 1.5 3.15 4.2 0.5 1.35 1.8 VCC VCC 1000 500 400 0 0 NOM 5 MAX 6 SN74HC138 MIN 2 1.5 3.15 4.2 0.5 1.35 1.8 VCC VCC 1000 500 400 ns V V V V NOM 5 MAX 6 UNIT V
High-level input voltage
Input transition rise/fall time
TA Operating free-air temperature -55 125 -40 85 C NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS VCC 2V IOH = -20 A VOH VI = VIH or VIL IOH = -4 mA IOH = -5.2 mA IOL = 20 A VOL VI = VIH or VIL IOL = 4 mA IOL = 5.2 mA II ICC Ci VI = VCC or 0 VI = VCC or 0, IO = 0 4.5 V 6V 4.5 V 6V 2V 4.5 V 6V 4.5 V 6V 6V 6V 2 V to 6 V 3 TA = 25C MIN TYP MAX 1.9 4.4 5.9 3.98 5.48 1.998 4.499 5.999 4.3 5.8 0.002 0.001 0.001 0.17 0.15 0.1 0.1 0.1 0.1 0.26 0.26 100 8 10 SN54HC138 MIN 1.9 4.4 5.9 3.7 5.2 0.1 0.1 0.1 0.4 0.4 1000 160 10 MAX SN74HC138 MIN 1.9 4.4 5.9 3.84 5.34 0.1 0.1 0.1 0.33 0.33 1000 80 10 nA A pF V V MAX UNIT
4
POST OFFICE BOX 655303
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SN54HC138, SN74HC138 3 LINE TO 8 LINE DECODERS/DEMULTIPLEXERS
SCLS107E - DECEMBER 1982 - REVISED SEPTEMBER 2003
switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER FROM (INPUT) TO (OUTPUT) VCC 2V A, B, or C tpd Enable Any Y Any Y 4.5 V 6V 2V 4.5 V 6V 2V tt Any 4.5 V 6V MIN TA = 25C TYP MAX 67 18 15 66 18 15 38 8 6 180 36 31 155 31 26 75 15 13 SN54HC138 MIN MAX 270 54 46 235 47 40 110 22 19 SN74HC138 MIN MAX 225 45 38 195 39 33 95 19 16 ns ns UNIT
operating characteristics, TA = 25C
PARAMETER Cpd Power dissipation capacitance TEST CONDITIONS No load TYP 85 UNIT pF
PARAMETER MEASUREMENT INFORMATION
From Output Under Test Test Point CL = 50 pF (see Note A) In-Phase Output Input VCC 50% tPLH 50% 10% tPHL Out-of-Phase Output 90% 50% 10% tf 90% tr Input 50% 10% 90% 90% VCC 50% 10% 0 V tf tPLH 50% 10% 90% tr 50% 0V tPHL 90% VOH 50% 10% VOL tf VOH VOL
LOAD CIRCUIT
tr VOLTAGE WAVEFORM INPUT RISE AND FALL TIMES
VOLTAGE WAVEFORMS PROPAGATION DELAY AND OUTPUT TRANSITION TIMES
NOTES: A. CL includes probe and test-fixture capacitance. B. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following characteristics: PRR 1 MHz, ZO = 50 , tr = 6 ns, tf = 6 ns. C. The outputs are measured one at a time with one input transition per measurement. D. tPLH and tPHL are the same as tpd.
Figure 1. Load Circuit and Voltage Waveforms
POST OFFICE BOX 655303
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5
PACKAGE OPTION ADDENDUM
www.ti.com
26-Sep-2005
PACKAGING INFORMATION
Orderable Device 5962-8406201VEA 5962-8406201VFA 84062012A 8406201EA 8406201FA JM38510/65802B2A JM38510/65802BEA JM38510/65802BFA SN54HC138J SN74HC138D SN74HC138DBR SN74HC138DBRE4 SN74HC138DE4 SN74HC138DR SN74HC138DRE4 SN74HC138DT SN74HC138DTE4 SN74HC138N SN74HC138N3 SN74HC138NE4 SN74HC138NSR SN74HC138NSRG4 SN74HC138PW SN74HC138PWG4 SN74HC138PWLE SN74HC138PWR SN74HC138PWRG4 SN74HC138PWT SN74HC138PWTG4 Status (1) ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE OBSOLETE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE OBSOLETE ACTIVE ACTIVE ACTIVE ACTIVE Package Type CDIP CFP LCCC CDIP CFP LCCC CDIP CFP CDIP SOIC SSOP SSOP SOIC SOIC SOIC SOIC SOIC PDIP PDIP PDIP SO SO TSSOP TSSOP TSSOP TSSOP TSSOP TSSOP TSSOP Package Drawing J W FK J W FK J W J D DB DB D D D D D N N N NS NS PW PW PW PW PW PW PW Pins Package Eco Plan (2) Qty 16 16 20 16 16 20 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 25 1 1 1 1 1 1 1 1 1 40 TBD TBD TBD TBD TBD TBD TBD TBD TBD Green (RoHS & no Sb/Br) Lead/Ball Finish Call TI Call TI Call TI Call TI Call TI Call TI Call TI Call TI Call TI CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU Call TI CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU Call TI CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU MSL Peak Temp (3) Level-NC-NC-NC Level-NC-NC-NC Level-NC-NC-NC Level-NC-NC-NC Level-NC-NC-NC Level-NC-NC-NC Level-NC-NC-NC Level-NC-NC-NC Level-NC-NC-NC Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-NC-NC-NC Call TI Level-NC-NC-NC Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Call TI Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM
2000 Green (RoHS & no Sb/Br) 2000 Green (RoHS & no Sb/Br) 40 Green (RoHS & no Sb/Br)
2500 Green (RoHS & no Sb/Br) 2500 Green (RoHS & no Sb/Br) 250 250 25 Green (RoHS & no Sb/Br) Green (RoHS & no Sb/Br) Pb-Free (RoHS) TBD Pb-Free (RoHS)
2000 Green (RoHS & no Sb/Br) 2000 Green (RoHS & no Sb/Br) 90 90 Green (RoHS & no Sb/Br) Green (RoHS & no Sb/Br) TBD 2000 Green (RoHS & no Sb/Br) 2000 Green (RoHS & no Sb/Br) 250 250 Green (RoHS & no Sb/Br) Green (RoHS & no Sb/Br)
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
26-Sep-2005
Orderable Device SNJ54HC138FK SNJ54HC138J SNJ54HC138W
(1)
Status (1) ACTIVE ACTIVE ACTIVE
Package Type LCCC CDIP CFP
Package Drawing FK J W
Pins Package Eco Plan (2) Qty 20 16 16 1 1 1 TBD TBD TBD
Lead/Ball Finish Call TI Call TI Call TI
MSL Peak Temp (3) Level-NC-NC-NC Level-NC-NC-NC Level-NC-NC-NC
The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 2
MECHANICAL DATA
MLCC006B - OCTOBER 1996
FK (S-CQCC-N**)
28 TERMINAL SHOWN
LEADLESS CERAMIC CHIP CARRIER
18
17
16
15
14
13
12
NO. OF TERMINALS ** 11 10 28 9 8 7 6 68 5 84 44 52 20
A MIN 0.342 (8,69) 0.442 (11,23) 0.640 (16,26) 0.739 (18,78) 0.938 (23,83) 1.141 (28,99) MAX 0.358 (9,09) 0.458 (11,63) 0.660 (16,76) 0.761 (19,32) 0.962 (24,43) 1.165 (29,59) MIN 0.307 (7,80) 0.406 (10,31) 0.495 (12,58) 0.495 (12,58) 0.850 (21,6) 1.047 (26,6)
B MAX 0.358 (9,09) 0.458 (11,63) 0.560 (14,22) 0.560 (14,22) 0.858 (21,8) 1.063 (27,0)
19 20 21 B SQ 22 A SQ 23 24 25
26
27
28
1
2
3
4 0.080 (2,03) 0.064 (1,63) 0.020 (0,51) 0.010 (0,25)
0.020 (0,51) 0.010 (0,25)
0.055 (1,40) 0.045 (1,14)
0.045 (1,14) 0.035 (0,89)
0.028 (0,71) 0.022 (0,54) 0.050 (1,27)
0.045 (1,14) 0.035 (0,89)
4040140 / D 10/96 NOTES: A. B. C. D. E. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. This package can be hermetically sealed with a metal lid. The terminals are gold plated. Falls within JEDEC MS-004
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MECHANICAL DATA
MSSO002E - JANUARY 1995 - REVISED DECEMBER 2001
DB (R-PDSO-G**)
28 PINS SHOWN 0,65 28 0,38 0,22 15 0,15 M
PLASTIC SMALL-OUTLINE
0,25 0,09 5,60 5,00 8,20 7,40
Gage Plane 1 A 14 0- 8 0,25 0,95 0,55
Seating Plane 2,00 MAX 0,05 MIN 0,10
PINS ** DIM A MAX
14
16
20
24
28
30
38
6,50
6,50
7,50
8,50
10,50
10,50
12,90
A MIN
5,90
5,90
6,90
7,90
9,90
9,90
12,30 4040065 /E 12/01
NOTES: A. B. C. D.
All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0,15. Falls within JEDEC MO-150
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MECHANICAL DATA
MTSS001C - JANUARY 1995 - REVISED FEBRUARY 1999
PW (R-PDSO-G**)
14 PINS SHOWN
PLASTIC SMALL-OUTLINE PACKAGE
0,65 14 8
0,30 0,19
0,10 M
0,15 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 1 A 7 0- 8 0,75 0,50
Seating Plane 1,20 MAX 0,15 0,05 0,10
PINS ** DIM A MAX
8
14
16
20
24
28
3,10
5,10
5,10
6,60
7,90
9,80
A MIN
2,90
4,90
4,90
6,40
7,70
9,60
4040064/F 01/97 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0,15. Falls within JEDEC MO-153
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