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PDF PI4ULS3V504 Data sheet ( Hoja de datos )
| Número de pieza | PI4ULS3V504 | |
| Descripción | 280Mb/s Bi-directional Level Translator | |
| Fabricantes | Pericom Semiconductor | |
| Logotipo |  |
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PI4ULS3V504
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280Mb/s Bi-directional Level Translator for Push-Pull Applications
Features
0.85V to 2.7V on A Port and 1.35V to 3.6V on B
Port
VCCA may be greater than, equal to, or less than
VCCB
High-Speed with 280 Mb/s Guaranteed Date Rate
30 pF Capacitive Drive Capability
Low Bit-to-Bit Skew
Overvoltage Tolerant Enable and I/O Pins
Non-preferential Power-Up Sequencing
Power-Off Protection
Package: UQFN1.7x2.0-12L
Applications
Mobile Phones, PDAs
Other Portable Devices
Description
The PI4ULS3V504 is a 4-bit configurable dual-supply
autosensing bidirectional level translator that does not
require a direction control pin. The B and A ports are
designed to track two different power supply rails,
VCCB and VCCA respectively.
The PI4ULS3V504 offers the feature that the values of
the VCCB and VCCA supplies are independent. Design
flexibility is maximized because VCCA can be set to a
value either greater than or less than the VCCB supply.
The PI4ULS3V504 has high output current capability,
which allows the translator to drive high capacitive loads
such as most high frequency EMI filters. Another feature
of the PI4ULS3V504 is that each An and Bn channel
can function as either an input or an output.
An Output Enable (EN) input is available to reduce the
power consumption. The EN pin can be used to disable
both I/O ports by putting them in 3-state which
significantly reduces the supply current.
The PI4ULS3V504 is 2 kV System-Level ESD Capable.
Pin Configuration
UQFN2.0*1.7-12L (Top View)
Pin Description
Pin Pin Type
Description
No. Name
1
VccA
Power
A-port supply voltage.0.85V ≤
VCCA ≤ 2.7 V
2
A1
I/O
Input/output A. Referenced to
VCCA.
3
A2
I/O
Input/output A. Referenced to
VCCA
4
A3
I/O
Input/output A. Referenced to
VCCA.
5
A4
I/O
Input/output A. Referenced to
VCCA
6 GND GND Ground.
7
B4
I/O
Input/output B. Referenced to
VCCB
8
B3
I/O
Input/output B. Referenced to
VCCB
9
B2
I/O
Input/output B. Referenced to
VCCB
10
B1
I/O
Input/output B. Referenced to
VCCB
11
VccB
Power
B-port supply voltage.1.35 V ≤
VCCB ≤ 3.6 V
Output enable (active High). Pull
12 EN Input EN low to place all outputs in 3-
state mode.
2013-12-0010
PT0491 01/15/14
1
1 page  
PI4ULS3V504
280Mb/s Bi-directional Level Translator
for Push-Pull Applications
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Power Consumption (TA =25°C)
Symbol*1 Parameter
Test Conditions
CPD_VCCA
A = Input port,
B = Output
Port
B = Input port,
A = Output
Port
CLoad = 0, f = 1MHz,
EN = VCCA (outputs enabled)
CLoad = 0, f = 1MHz,
EN = VCCA (outputs enabled)
VCCB (V)*2 VCCA (V)*3
1.35 - 3.6 0.85 - 2.7
Typ*4
40
Unit
pF
1.35 - 3.6 0.85 - 2.7 40 pF
CPD_VCCB
A = Input port,
B = Output
Port
B = Input port,
A = Output
Port
CLoad = 0, f = 1MHz,
EN = VCCA (outputs enabled)
CLoad = 0, f = 1MHz,
EN = VCCA (outputs enabled)
1.35 - 3.6 0.85 - 2.7
1.35 - 3.6 0.85 - 2.7
40 pF
40 pF
A = Input port,
B = Output
Port
CLoad = 0, f = 1MHz,
EN = GND (outputs disabled)
1.35 - 3.6 0.85 - 2.7
1
pF
CPD_VCCA B = Input port,
A = Output
Port
CLoad = 0, f = 1MHz,
EN = GND (outputs disabled)
1.35 - 3.6 0.85 - 2.7
1
pF
A = Input port,
B = Output
Port
CLoad = 0, f = 1MHz,
EN = GND (outputs disabled)
1.35 - 3.6 0.85 - 2.7
1
pF
CPD_VCCB B = Input port,
A = Output
Port
CLoad = 0, f = 1MHz,
EN = GND (outputs disabled)
1.35 - 3.6 0.85 - 2.7
1
pF
Notes:
1. CPD_VCCA and CPD_VCCB are defined as the value of the IC’s equivalent capacitance from which the operating current can be
calculated for the A and B power supplies, respectively. ICC = ICC (dynamic) + ICC (static) ≈ICC(operating) ≈CPD x VCC x fIN x
NSW where ICC = ICC_VCCB+ ICC_VCCA and NSW = total number of outputs switching.
2. VCCB is the supply voltage associated with the I/O B port, and VCCB ranges from +1.35V to 3.6V under normal operating
conditions.
3. VCCA is the supply voltage associated with the I/O A port, and VCCA ranges from +0.8 V to 2.7V under normal operating
conditions.
4. Typical values are at TA = +25°C. Limits over the operating temperature range are guaranteed by design.
2013-12-0010
PT0491 01/15/14
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet PI4ULS3V504.PDF ] | |
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