SN74LV138AT Datasheet, PDF (1/20 Pages) Texas Instruments – 3-LINE TO 8-LINE DECODER/DEMULTIPLEXER

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FEATURES
• Inputs Are TTL-Voltage Compatible
• 4.5-V to 5.5-V V_CC Operation
• Max t_pd of 7.6 ns at 5 V
• Typical V_OLP (Output Ground Bounce)
<0.8 V at V_CC = 5 V, T_A = 25°C
• Typical V_OHV (Output V_OH Undershoot)
>2.3 V at V_CC = 5 V, T_A = 25°C
• Support Mixed-Mode Voltage Operation on All
Ports
D, DB, DGV, NS, OR PW PACKAGE
(TOP VIEW)
A1
B2
C3
G2A 4
G2B 5
G1 6
Y7 7
GND 8
16 VCC
15 Y0
14 Y1
13 Y2
12 Y3
11 Y4
10 Y5
9 Y6
SN74LV138AT
3-LINE TO 8-LINE DECODER/DEMULTIPLEXER
SCLS691 – AUGUST 2005
• I_off Supports Partial-Power Down Mode
Operation
• Latch-Up Performance Exceeds 250 mA Per
JESD 17
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
RGY PACKAGE
(TOP VIEW)
1
B2
C3
G2A 4
G2B 5
G1 6
Y7 7
8
16
15 Y0
14 Y1
13 Y2
12 Y3
11 Y4
10 Y5
9
DESCRIPTION/ORDERING INFORMATION
The SN74LV138AT is a 3-line to 8-line decoder/demultiplexer, designed for high-performance memory-decoding
or data-routing applications requiring very short propagation delay times. In high-performance memory systems,
this decoder 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 the decoder and the enable time of the memory usually are less
than the typical access time of the memory. This means that the effective system delay introduced by the
decoder is negligible.
T_A
–40°C to 125°C
ORDERING INFORMATION
PACKAGE ⁽¹⁾
ORDERABLE PART NUMBER
TOP-SIDE MARKING
QFN – RGY
Reel of 1000
SN74LV138ATRGYR
VV138AT
SOIC – D
Tube of 40
Reel fo 2500
SN74LV138ATD
SN74LV138ATDR
LV138AT
SOP – NS
Reel of 2000
SN74LV138ATNSR
74LV138AT
SSOP – DB
Reel of 2000
SN74LV138ATDBR
LV138AT
TVSOP – DGV
Reel of 2000
SN74LV138ATDGVR
LV138AT
Tube of 90
SN74LV138ATPW
TSSOP – PW
Reel of 2000
SN74LV138ATPWR
LV138AT
Reel of 250
SN74LV138ATPWT
(1) 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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005, Texas Instruments Incorporated