74VHC138TTR STMicroelectronics, 74VHC138TTR Datasheet

IC DECODER 3 TO 8 LINE 16-TSSOP

74VHC138TTR

Manufacturer Part Number
74VHC138TTR
Description
IC DECODER 3 TO 8 LINE 16-TSSOP
Manufacturer
STMicroelectronics
Series
74VHCr
Type
Decoderr
Datasheet

Specifications of 74VHC138TTR

Circuit
1 x 3:8
Independent Circuits
1
Current - Output High, Low
8mA, 8mA
Voltage Supply Source
Single Supply
Voltage - Supply
2 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-7129-2
74VHC138TTR

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Part Number:
74VHC138TTR
Manufacturer:
ST
0
DESCRIPTION
The 74VHC138 is an advanced high-speed
CMOS 3 TO 8 LINE DECODER (INVERTING)
fabricated with sub-micron silicon gate and
double-layer metal wiring C
If the device is enabled, 3 binary select (A, B, and
C) determine which one of the outputs will go low.
If enable input G1 is held low or either G2A or G2B
is held high, the decoding function is inhibited and
all the 8 outputs go to high.
Figure 1: Pin Connection And IEC Logic Symbols
November 2004
HIGH SPEED: t
LOW POWER DISSIPATION:
I
HIGH NOISE IMMUNITY:
V
POWER DOWN PROTECTION ON INPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
OPERATING VOLTAGE RANGE:
V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 138
IMPROVED LATCH-UP IMMUNITY
CC
PLH
OH
NIH
CC
= 4 A (MAX.) at T
| = I
(OPR) = 2V to 5.5V
= V
t
PHL
OL
NIL
= 8 mA (MIN)
= 28% V
PD
= 5.7ns (TYP.) at V
CC
A
=25°C
(MIN.)
2
MOS technology.
3 TO 8 LINE DECODER (INVERTING)
CC
= 5V
Table 1: Order Codes
Tree enable inputs are provided to ease cascade
connection and application of address decoders
for memory systems.
Power down protection is provided on all inputs
and 0 to 7V can be accepted on inputs with no
regard to the supply voltage. This device can be
used to interface 5V to 3V.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
PACKAGE
TSSOP
SOP
SOP
74VHC138
Rev. 4
74VHC138MTR
74VHC138TTR
TSSOP
T & R
1/12

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74VHC138TTR Summary of contents

Page 1

... This device can be MOS technology. used to interface 5V to 3V. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. 74VHC138 SOP TSSOP PACKAGE T & R SOP 74VHC138MTR TSSOP 74VHC138TTR Rev. 4 1/12 ...

Page 2

Figure 2: Input Equivalent Circuit Table 3: Truth Table INPUTS ENABLE G2B G2A ...

Page 3

Table 4: Absolute Maximum Ratings Symbol V Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Current ...

Page 4

Table 6: DC Specifications Symbol Parameter V High Level Input IH Voltage 3 Low Level Input IL Voltage 3 High Level Output OH Voltage V Low Level Output OL Voltage I Input Leakage I Current ...

Page 5

Table 8: Capacitive Characteristics Symbol Parameter C Input Capacitance IN C Power Dissipation PD Capacitance (note defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without PD ...

Page 6

Figure 6: Waveform - Propagation Delays For Non-inverting Outputs (f=1MHz; 50% duty cycle) 6/12 ...

Page 7

SO-16 MECHANICAL DATA DIM. MIN 0 0. 9 3.8 G 4 mm. TYP MAX. 1.75 0.25 0.004 1.64 0.46 0.013 0.25 0.007 ...

Page 8

DIM. MIN 0.05 A2 0.8 b 0.19 c 0.09 D 4.9 E 6 0˚ PIN 1 IDENTIFICATION 1 8/12 TSSOP16 MECHANICAL DATA mm. TYP MAX. 1.2 0.15 ...

Page 9

Tape & Reel SO-16 MECHANICAL DATA DIM. MIN 12 6.45 Bo 10.3 Ko 2.1 Po 3.9 P 7.9 mm. TYP MAX. 330 13.2 0.504 0.795 2.362 22.4 6.65 0.254 10.5 0.406 2.3 ...

Page 10

Tape & Reel TSSOP16 MECHANICAL DATA DIM. MIN 12 6.7 Bo 5.3 Ko 1.6 Po 3.9 P 7.9 10/12 mm. TYP MAX. 330 13.2 0.504 0.795 2.362 22.4 6.9 0.264 5.5 ...

Page 11

Table 9: Revision History Date Revision 12-Nov-2004 4 Description of Changes Order Codes Revision - pag. 1. 74VHC138 11/12 ...

Page 12

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics ...

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