|
|
PDF IP4853CX24 Data sheet ( Hoja de datos )
| Número de pieza | IP4853CX24 | |
| Descripción | MMC and microSD memory card integrated level shifter | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de IP4853CX24 (archivo pdf) en la parte inferior de esta página. Total 19 Páginas | ||
|
No Preview Available !
www.DataSheet4U.com
IP4853CX24
SD, MMC and microSD memory card integrated level shifter
with PSU, EMI filter and ESD protection
Rev. 02 — 15 June 2009
Product data sheet
1. Product profile
1.1 General description
The IP4853CX24 is a device that fully integrates a bidirectional level shifter or voltage
translator, EMI filter and ESD protection diodes. It is specifically designed to be used for
memory card interfaces such as SD, microSD and MultiMediaCard (MMC) memory cards.
The integrated power supply unit supplies memory cards with 2.9 V directly from the
battery. This enables a 1.8 V operating host-side device (e.g. a processor interface) to
communicate with a 2.9 V compliant memory card using its integrated level shifter.
Radiation from digital signals in the higher harmonics, close to typical mobile phone
frequencies, is suppressed by the EMI filter.
The IP4853CX24 is fabricated using monolithic silicon technology in a Wafer Level
Chip-Scale Package (WLCSP) with 0.4 mm pitch.
1.2 Features
I Dark Green compliant.
I Pb-free, RoHS compliant
I Integrated EMI filters
I Feedback channel for clock synchronization
I Integrated ESD protection according to IEC 61000-4-2, level 4
I WLCSP with 0.4 mm pitch
1.3 Applications
I SD memory card, microSD memory card and MMC interfaces in latest electronic
appliances such as:
N Mobile phone or smart phone
N Digital camera
N Card reader in (laptop) computer
I Appliances requiring one or several of the following features:
N Level shifting and voltage translation from 1.8 V to 2.9 V and from 2.9 V to 1.8 V
N ESD protection according to IEC 61000-4-2, level 4
N Power supply regulation from battery to 2.9 V card memory voltage
N EMI filtering
N Integration of interface-specific biasing resistor network
1 page  
NXP Semiconductors
www.DataSheet4U.com
IP4853CX24
SD, MMC and microSD memory card integrated level shifter
5. Functional description
5.1 Logic control signals
Table 4. Control signal truth table
VBAT ≥ 2.7 V.
Control
Host-side
Pin
Level[1]
Pin
Pin ENABLE = HIGH and VCC ≥ 1.62 V
DIR_CMD
H
CMD_H
L CMD_H
DIR_0
H
DATA0_H
L DATA0_H
DIR_1_3
H
DATA1_H,
DATA2_H,
DATA3_H
L DATA1_H,
DATA2_H,
DATA3_H
- - CLK_FB
Pin ENABLE = LOW or VCC ≤ 0.8 V
DIR_CMD
X
CMD_H
DIR_0
X
DATA0_H
DIR_1_3
X
DATA1_H,
DATA2_H,
DATA3_H
- - CLK_FB
[1] H = HIGH; L = LOW and X = don’t care.
Function
input
output
input
output
input
output
output
high-Z
high-Z
high-Z
high-Z
Memory card-side
Pin Function
CMD_SD
CMD_SD
DATA0_SD
DATA0_SD
DATA1_SD,
DATA2_SD,
DATA3_SD
DATA1_SD,
DATA2_SD,
DATA3_SD
CLK_SD
output
input
output
input
output
input
output
CMD_SD
DATA0_SD
DATA1_SD,
DATA2_SD,
DATA3_SD
CLK_SD
high-Z
high-Z
high-Z
high-Z
IP4853CX24_2
Product data sheet
Rev. 02 — 15 June 2009
© NXP B.V. 2009. All rights reserved.
5 of 19
5 Page 
NXP Semiconductors
www.DataSheet4U.com
IP4853CX24
SD, MMC and microSD memory card integrated level shifter
A, B input
VI
GND
VOH
B, A output
VOL
VM
tPHL
VM
tPLH
001aae967
Fig 4.
Measuring points: host-side at 0.5VCC and memory card-side at 0.5VO(reg).
VOL and VOH are typical output voltage levels that occur with the output load.
Output rise and fall times and data input to output propagation delay times (host-side to card-side or
card-side to host-side)
Table 12. Power dissipation per channel
VCC = 1.8 V; VBAT = 4 V; all values are typical; memory card-side CL = 20 pF and host-side
CL = 5 pF.
Frequency (MHz)
IBAT (mA)
ICC (mA)
P (mW)[1]
Host-side input to memory card-side output
Data channel
1.0
0.79
0.002
3.16
10.0
3.30
0.020
13.3
20.0
5.79
0.037
23.2
50.0
12.3
0.090
49.4
Clock channel
1.0 0.44 0.05 1.85
10.0 3.1
0.59 13.5
20.0 5.4
0.97 23.4
50.0 12.2 2.36 53.1
Memory card-side input to host-side output
Data channel
1.0 0.18 0.1 0.9
10.0 0.42 0.96 3.41
20.0 0.66 1.91 6.1
50.0 1.4 4.5 13.7
[1] Power consumption is largely dependent on capacitive load connected to a driver output:
P = VCC × ICC + VBAT × IBAT.
IP4853CX24_2
Product data sheet
Rev. 02 — 15 June 2009
© NXP B.V. 2009. All rights reserved.
11 of 19
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet IP4853CX24.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| IP4853CX24 | MMC and microSD memory card integrated level shifter | NXP Semiconductors |
| 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 |