74VHC139 PDF даташит
Спецификация 74VHC139 изготовлена «STMicroelectronics» и имеет функцию, называемую «DUAL 2 TO 4 DECODER / DEMULTIPLEXER». |
|
Детали детали
Номер произв | 74VHC139 |
Описание | DUAL 2 TO 4 DECODER / DEMULTIPLEXER |
Производители | STMicroelectronics |
логотип |
12 Pages
No Preview Available ! |
74VHC139
DUAL 2 TO 4 DECODER/DEMULTIPLEXER
s HIGH SPEED: tPD = 5.0 ns (TYP.) at VCC = 5V
s LOW POWER DISSIPATION:
ICC = 4 µA (MAX.) at TA=25°C
s HIGH NOISE IMMUNITY:
VNIH = VNIL = 28% VCC (MIN.)
)s POWER DOWN PROTECTION ON INPUTS
t(ss SYMMETRICAL OUTPUT IMPEDANCE:
c|IOH| = IOL = 8 mA (MIN)
us BALANCED PROPAGATION DELAYS:
dtPLH ≅ tPHL
ro )s OPERATING VOLTAGE RANGE:
P t(sVCC(OPR) = 2V to 5.5V
s PIN AND FUNCTION COMPATIBLE WITH
lete uc74 SERIES 139
ds IMPROVED LATCH-UP IMMUNITY
bso ProDESCRIPTION
The 74VHC139 is an advanced high-speed
- O teCMOS DUAL 2 TO 4 LINE DECODER/
) leDEMULTIPLEXER fabricated with sub-micron
t(s osilicon gate and double-layer metal wiring C2MOS
stechnology.
c bThe active low enable input can be used for gating
u Oor as a data input for demultiplexing applications.
rod -While the enable input is held high, all four outputs
P t(s)are high independently of the other inputs.
SOP
TSSOP
Table 1: Order Codes
PACKAGE
SOP
TSSOP
T&R
74VHC139MTR
74VHC139TTR
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.
ObsOoblestoelePteroducFigure 1: Pin Connection And IEC Logic Symbols
November 2004
Rev. 4
1/12
No Preview Available ! |
74VHC139
Figure 2: Input Equivalent Circuit
Table 2: Pin Description
PIN N°
1, 15
2, 3
4, 5, 6, 7
12, 11, 10, 9
14, 13
8
16
SYMBOL NAME AND FUNCTION
1G, 2G
1A, 1B
1Y0 to 1Y3
2Y0 to 2Y3
2A, 2B
GND
VCC
Enable Inputs
Address Inputs
Outputs
Outputs
Address Inputs
Ground (0V)
Positive Supply Voltage
t(s)Table 3: Truth Table
cINPUTS
duENABLE
SELECT
Pro t(s)G B A
HXX
te cL L L
le duL L H
so roL H L
b PL H H
- O teX : Don’t care
ObsOoblestoelePteroPdruocdt(usc)t(-sO) bsoleFigure 3: Logic Diagram
OUTPUTS
Y0 Y1 Y2 Y3
HHHH
L HHH
HL HH
HH LH
HHH L
This logic diagram has not be used to estimate propagation delays
2/12
No Preview Available ! |
74VHC139
Table 4: Absolute Maximum Ratings
Symbol
Parameter
Value
Unit
VCC Supply Voltage
-0.5 to +7.0
V
VI DC Input Voltage
-0.5 to +7.0
V
VO DC Output Voltage
-0.5 to VCC + 0.5
V
IIK DC Input Diode Current
- 20 mA
IOK DC Output Diode Current
± 20
mA
IO DC Output Current
± 25
mA
ICC or IGND DC VCC or Ground Current
± 75
mA
Tstg Storage Temperature
)TL Lead Temperature (10 sec)
-65 to +150
300
°C
°C
t(sAbsolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
cnot implied
duTable 5: Recommended Operating Conditions
Pro t(s)Symbol
te cVCC
le uVI
dVO
so roTop
- Ob te Pdt/dv
Parameter
Supply Voltage
Input Voltage
Output Voltage
Operating Temperature
Input Rise and Fall Time (note 1) (VCC = 3.3 ± 0.3V)
(VCC = 5.0 ± 0.5V)
ObsOoblestoelePteroPdruocdt(usc)t(-sO) bsole1)VINfrom30% to70% ofVCC
Value
2 to 5.5
0 to 5.5
0 to VCC
-55 to 125
0 to 100
0 to 20
Unit
V
V
V
°C
ns/V
3/12
Скачать PDF:
[ 74VHC139.PDF Даташит ]
Номер в каталоге | Описание | Производители |
74VHC132 | QUAD 2-INPUT SCHMITT NAND GATE | STMicroelectronics |
74VHC132 | Quad 2-Input NAND Schmitt Trigger | Fairchild Semiconductor |
74VHC132 | Quad 2-Input NAND Schmitt Trigger | National Semiconductor |
74VHC138 | 3 TO 8 LINE DECODER | STMicroelectronics |
Номер в каталоге | Описание | Производители |
TL431 | 100 мА, регулируемый прецизионный шунтирующий регулятор |
Unisonic Technologies |
IRF840 | 8 А, 500 В, N-канальный МОП-транзистор |
Vishay |
LM317 | Линейный стабилизатор напряжения, 1,5 А |
STMicroelectronics |
DataSheet26.com | 2020 | Контакты | Поиск |