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PDF 74LVX16245TTR Data sheet ( Hoja de datos )
| Número de pieza | 74LVX16245TTR | |
| Descripción | 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS/ 5V TOLERANT INPUTS | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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74LVX16245
16-BIT BUS TRANSCEIVER
WITH 3-STATE OUTPUTS, 5V TOLERANT INPUTS
s HIGH SPEED: tPD = 5.3 ns (TYP.) at VCC = 3V
s 5V TOLERANT INPUT
s LOW POWER DISSIPATION:
ICC = 4 µA (MAX.) at TA=25°C
s INPUT VOLTAGE LEVEL: VIL= 0.8, VIH=2V
AT VCC=3V
s POWER DOWN PROTECTION ON INPUTS
& OUTPUTS
s SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4 mA (MIN)
s BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
s OPERATING VOLTAGE RANGE:
VCC(OPR) = 2V to 3.6V (1.2V Data Retention)
s IMPROVED LATCH-UP IMMUNITY
s LOW NOISE: VOLP = 0.3V (TYP.) AT Vcc=3V
DESCRIPTION
The 74LVX16245 is an advanced high-speed
CMOS 16-BIT BUS TRANSCEIVER (3-STATE)
fabricated with sub-micron silicon gate and
double-layer metal wiring C2MOS technology.
This IC is intended for two-way asynchronous
communication between data busses; the
direction of data transmission is determined by
DIR input. The enable input G can be used to
disable the device so that the busses are
effectively isolated.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
All floating bus terminals during High Z State must
be held HIGH or LOW.
TSSOP
ORDER CODES
PACKAGE
TSSOP
TUBE
PIN CONNECTION
T&R
74LVX16245TTR
July 2003
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1 page  
74LVX16245
CAPACITIVE CHARACTERISTICS
Test Condition
Value
Symbol
Parameter
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
CIN Input Capacitance
4 10 10 10 pF
CI/O
Output
Capacitance
8 pF
CPD Power Dissipation
Capacitance
(note 1)
21
pF
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/8 (per circuit)
DYNAMIC SWITCHING CHARACTERISTICS
Test Condition
Value
Symbol
Parameter
VCC
(V)
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
VOLP
VOLV
Dynamic Low
Voltage Quiet
Output (note 1, 2)
3.3
0.3 0.8
-0.8 -0.3
V
VIHD
Dynamic High
Voltage Input
(note 1, 3)
3.3 CL = 50 pF 2.0
V
VILD
Dynamic Low
Voltage Input
(note 1, 3)
3.3
0.8 V
1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.3V, (n-1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.3V. Inputs under test switching: 3.3V to threshold (VILD), 0V to threshold
(VIHD), f=1MHz.
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