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PDF PI4ULS3V304 Data sheet ( Hoja de datos )
| Número de pieza | PI4ULS3V304 | |
| Descripción | 140Mb/s Bi-directional Level Translator | |
| Fabricantes | Pericom Semiconductor | |
| Logotipo |  |
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PI4ULS3V304
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140Mb/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 140 Mb/s Guaranteed Date Rate
100 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 PI4ULS3V304 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 PI4ULS3V304 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 PI4ULS3V304 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 PI4ULS3V304 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 PI4ULS3V304 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
PT0492 01/15/14
1
1 page  
PI4ULS3V304
140Mb/s Bi-directional Level Translator
for Push-Pull Applications
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Continuously.
Sym Parameter
Test Conditions*1
VCCB*2 (V) VCCA*3(V)
-40°C to +85°C
Min Typ*4 Max
CIO = 15pF
1.35-3.6 0.85-2.7
50
--
2.5-3.6
1.8-2.7
140
-
-
MIDR Maximum Data Rate
CIO = 30pF
CIO = 50pF
1.35-3.6 0.85-2.7
40
--
2.5-3.6
1.8-2.7
120
-
-
1.35-3.6 0.85-2.7
30
--
2.5-3.6
1.8-2.7
100
-
-
CIO = 100pF
1.35-3.6
2.5-3.6
0.85-2.7
1.8-2.7
20
60
--
--
Notes:
1. Normal test conditions are VI = 0 V, CIOB ≤ 15pF and CIOA ≤ 15pF, unless otherwise specified.
2. V CCB is the supply voltage associated with the I/O B port, and B ranges from +1.35 V to 3.6 V under normal operating conditions.
3. V CCA is the supply voltage associated with the I/O A port, and A ranges from +0.85 V to 2.7V under normal operating conditions.
4. Typical values are tested at TA = +25°C. Limits over the operating temperature range are guaranteed by design.
5. Guaranteed by design
Unit
mbps
Power Consumption (TA=+25°C)
Sym*1
Parameter
Test Conditions
VCCB*2 (V)
VCCA*3(V)
Typ Unit
A = Input port,
CPD_VCCA
B = Output Port
B = Input port,
A = Output Port
CLoad = 0, f = 1MHz,
EN = VCCA (outputs enabled)
1.35-3.6
0.85-2.7
40 pF
A = Input port,
CPD_VCCB B = Output Port
B = Input port,
A = Output Port
CLoad = 0, f = 1MHz,
EN = VCCA (outputs enabled)
1.35-3.6
0.85-2.7
40 pF
A = Input port,
CPD_VCCA
B = Output Port
B = Input port,
CLoad = 0, f = 1MHz,
EN = GND(outputs disabled)
1.35-3.6
0.85-2.7
1 pF
A = Output Port
A = Input port,
CPD_VCCB B = Output Port
B = Input port,
CLoad = 0, f = 1MHz,
EN = GND(outputs disabled)
1.35-3.6
0.85-2.7
1 pF
A = Output Port
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 range from +0.0.85 V to 2.7V under normal operating conditions.
4. Typical values are at TA = +25°C.
2013-12-0010
PT0492 01/15/14
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet PI4ULS3V304.PDF ] | |
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