|
|
PDF ST2149B Data sheet ( Hoja de datos )
| Número de pieza | ST2149B | |
| Descripción | 4-bit dual supply level translator | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ST2149B (archivo pdf) en la parte inferior de esta página. Total 23 Páginas | ||
|
No Preview Available !
ST2149B
4-bit dual supply level translator without direction control pin
Features
■ 45 MHz: 90 Mbps (max.) data rate at
VL = 1.8 V, VCC = 3.3 V
■ Bi-directional level translation without direction
control pin
■ Wide voltage range (VL ≤ VCC):
– VL ranges from 1.65 to 3.6 V
– VCC ranges from 1.65 to 5.5 V
■ Totem-pole driving
■ 5.5 V tolerant enable pin
■ ESD performance on all pins: ±2 kV HBM
■ Small package and footprint
QFN12 (1.7 x 2.0 mm)
Applications
■ Low-voltage system level translation
■ Mobile phones and other mobile devices
Datasheet −production data
QFN12
(1.7 x 2.0 mm)
Table 1. Device summary
Order code
Package
Packing
Package
topmark
ST2149BQTR
QFN12
(1.7 x 2.0 mm)
Tape and
reel (3000
parts per
reel)
49A
June 2012
This is information on a product in full production.
Doc ID 023310 Rev 1
1/23
www.st.com
1
1 page  
ST2149B
1 Description
Description
The ST2149B is a 4-bit dual supply level translator which provides the level shifting
capability to allow data transfer in a multi-voltage system. Externally applied voltages, VCC
and VL, set the logic levels on either side of the device. Its architecture allows bi-directional
level translation without a control pin.
The ST2149B accepts VL from 1.65 to 3.6 V and VCC from VL to 5.5 V, making it ideal for
data transfer between low-voltage ASICs/PLD and higher voltage systems. This device has
a tri-state output mode which can be used to disable all I/Os.
Doc ID 023310 Rev 1
5/23
5 Page 
ST2149B
6 Electrical characteristics
Electrical characteristics
Over recommended operating conditions unless otherwise noted. All typical values are at
TA = 25 °C.
Table 6. DC characteristics
Symbol Parameter
VL
VCC
Test
conditions
Value
TA = 25 °C
Min. Typ. Max.
-40 to 85 °C Unit
Min. Max.
VIHL
VILL
VIHC
VILC
VIH-OE
High-level
input voltage
(I/OVL)
Low-level
input voltage
(I/OVL)
High-level
input voltage
(I/OVCC)
Low-level
input voltage
(I/OVCC)
High-level
input voltage
(OE)
1.65 to 3.6 VL to 5.5
1.65 to 3.6 VL to 5.5
1.65 to 3.6 VL to 5.5
1.65 to 3.6 VL to 5.5
1.65 to 3.6 VL to 5.5
0.8 VL – – 0.8 VL – V
––
0.2 VL – 0.2 VL V
0.8 VCC –
– 0.8 VCC –
V
– – 0.2 VCC – 0.2 VCC V
0.8 VL – – 0.8 VL – V
Low-level
VIL-OE input voltage 1.65 to 3.6 VL to 5.5
(OE)
–
– – 0.2 VL
0.2 VL V
VOHL
VOLL
VOHC
VOLC
IOE
High-level
output
voltage
(I/OVL)
Low-level
output
voltage
(I/OVL)
High-level
output
voltage
(I/OVCC)
Low-level
output
voltage
(I/OVCC)
Control input
leakage
current (OE)
1.65 to 3.6 VL to 5.5
1.65 to 3.6 VL to 5.5
1.65 to 3.6 VL to 5.5
1.65 to 3.6 VL to 5.5
1.65 to 3.6 VL to 5.5
IO = -60 µA
IO = +60 µA
IO = -60 µA
IO = +60 µA
VI = GND or
VL
VL - 0.4
–
VCC - 0.4
–
–
–
–
–
–
–
– VL - 0.4 –
V
0.4 – 0.4 V
–
VCC -
0.4
–
V
0.4 – 0.4 V
0.1 –
1 µA
Doc ID 023310 Rev 1
11/23
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet ST2149B.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ST2149 | 4-bit dual supply level translator | STMicroelectronics |
| ST2149B | 4-bit dual supply level translator | STMicroelectronics |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |