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NXP Semiconductors IP4853CX24/P,135
- Part No.:
- IP4853CX24/P,135
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 24-UFBGA, WLCSP
- Datasheet:
-
IP4853CX24/P,135.pdf
- Description:
- IC INTFACE SPECIALIZED 24WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,214
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Product details
Overview
IP4853CX24/P,135 from NXP Semiconductors is a monolithic WLCSP24-level shifter IC integrating bidirectional voltage translation (1.8 V ↔ 2.9 V), EMI filtering (≥9 dB insertion loss from 401 MHz), IEC 61000-4-2 Level 4 ESD protection (±8 kV contact), and a 2.9 V memory card power supply regulator delivering up to 200 mA. It serves as the interface bridge between host processors and SD/microSD/MMC cards in space-constrained mobile devices.
For engineers reviewing the IP4853CX24/P,135 datasheet, IP4853CX24/P,135 pinout, IP4853CX24/P,135 application, or IP4853CX24/P,135 equivalent, this device delivers verified level-shifting timing (7.0 ns typical propagation delay), integrated biasing resistors (Rpu = 15 kΩ, Rpd = 470 kΩ), and wafer-level packaging optimized for high-frequency signal integrity in memory card slots.
Technical Context
The IP4853CX24/P,135 implements independent direction control per channel (DIR_CMD, DIR_0, DIR_1_3) enabling asynchronous bidirectional data flow between host and card sides. Its integrated PSU regulates VBAT (2.7–5.0 V) to a stable 2.9 V output (VO(reg) = 2.9 V, ΔVdo = 150 mV max) with 200 μA quiescent current in active mode.
EMI suppression is achieved via on-die RC-filtered channels (Cch ≤20 pF per I/O, αil ≥17 dB at 801–1.4 GHz), while clock feedback (CLK_FB) supports synchronous timing alignment. All I/Os support 1.8 V host logic and 2.9 V card-side signaling with VOH/VOL specified at −6 mA/6 mA loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Level shift range | 1.8 V ↔ 2.9 V bidirectional translation with independent DIR control per channel group |
| Regulator output | 2.9 V @ 200 mA; dropout ≤150 mV ensures stable SD card power under battery sag |
| ESD rating | IEC 61000-4-2 Level 4: ±8 kV contact, ±15 kV air - protects card interface against user-handling discharge |
| Propagation delay | 7.0 ns typical (host→card, CL = 20 pF); enables >20 MHz SD clock operation with timing margin |
| EMI insertion loss | ≥17 dB at 801–1.4 GHz - suppresses harmonics near cellular bands (900/1800/2100 MHz) |
| Package | WLCSP24, 1.99 × 1.99 × 0.61 mm, 0.4 mm pitch - matches ultra-thin mobile PCB stackup requirements |
| Quiescent current | 200 μA active mode; 2 μA shutdown - extends battery life during card idle states |
Pinout & Package
IP4853CX24/P,135 uses a Wafer Level Chip-Size Package (WLCSP24) with 24 solder bumps arranged in a 5×5 grid (bump A1 indexed). The package measures 1.99 × 1.99 × 0.61 mm with 0.4 mm pitch and requires NSMD PCB design with laser-drilled micro-vias for optimal ESD/EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (DATA2_H) | Host-side bidirectional data line | Connects to processor DATA2; direction controlled by DIR_1_3; supports 1.8 V logic |
| A2 (DIR_CMD) | Command-direction control input | Configures CMD_H/CMD_SD as input (H) or output (L); enables full-duplex command handshaking |
| B4 (VSD) | Memory card supply output | Delivers regulated 2.9 V to SD/microSD/MMC card; requires 1 μF external capacitor |
| C3/C4 (GND) | Power ground terminals | Dual GND bumps reduce ground inductance and improve EMI filtering effectiveness |
| E2 (CLK_FB) | Clock feedback output | Provides synchronized clock copy to host for timing alignment; supports CLK_IN → CLK_FB path |
| E4 (WP) | Write-protect bias output | Drives SD card WP switch with integrated 100 kΩ pull-up; eliminates external resistor |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PSU with 200 mA output | Eliminates discrete LDO and reduces BOM count for memory card power rail |
| On-die EMI filters per channel | Meets EN 55022 Class B radiated emissions without external ferrites or capacitors |
| Pre-configured bias network | Includes Rpu (15 kΩ), Rpd (470 kΩ), and CD/WP pull resistors - removes 7 external components |
| Direction-controlled bidirectional I/O | Independent DIR inputs per function group enable simultaneous read/write across data/command lines |
| WLCSP24 footprint | 0.61 mm height and 1.99 mm² area enable placement directly adjacent to SD card slot |
Applications
| Mobile Phone Memory Interface | Digital Camera Card Slot |
|---|---|
|
Use Scenario: Host SoC (1.8 V I/O) communicates with microSD card (2.9 V) in smartphone mainboard. IC Role / Device Role / Timing Role: Bidirectional level shifter, ESD protector, and card power regulator; provides CLK_FB for timing synchronization. Use Value: Enables direct integration of microSD without discrete regulators or ESD diodes, saving 12 mm² PCB area. |
Use Scenario: DSLR camera uses SDHC card for burst-mode image storage with high-speed UHS-I timing. IC Role / Device Role / Timing Role: Translates command/data signals while suppressing EMI from high-frequency SD clock harmonics. Use Value: Achieves 7.0 ns propagation delay and ≥17 dB EMI attenuation at 1.4 GHz, meeting UHS-I timing budgets. |
| Laptop Card Reader Module | Industrial Handheld Scanner |
|
Use Scenario: USB-based laptop card reader supports hot-plug detection and write-protection sensing. IC Role / Device Role / Timing Role: Provides CD and WP outputs with integrated biasing; manages direction control during plug/unplug events. Use Value: Eliminates need for external CD/WP pull resistors and enables robust hot-swap detection per SD spec. |
Use Scenario: Ruggedized handheld scanner reads MMC cards in warehouse environments with frequent ESD exposure. IC Role / Device Role / Timing Role: Delivers IEC 61000-4-2 Level 4 ESD protection and 2.9 V regulated power in compact WLCSP24 form factor. Use Value: Survives ±8 kV contact discharge without latch-up, ensuring field reliability in industrial settings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar memory card interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX14541EETE+ | Single-supply 1.65–3.6 V operation; no integrated PSU; 12-pin TDFN package | Lacks 2.9 V regulator and card-side biasing; requires external LDO and pull resistors | Choose when host and card share compatible voltage rails and board space allows discrete components |
| TPD4S012YZR | 4-channel ESD protector only; no level shifting or regulation; 12-bump WLCSP | Provides only IEC 61000-4-2 Level 4 protection; requires separate level shifter and regulator | Choose when existing design already includes discrete translation/regulation and only ESD hardening is needed |
Compared with MAX14541EETE+ and TPD4S012YZR, IP4853CX24/P,135 uniquely integrates level shifting, 200 mA regulation, EMI filtering, and biasing in one WLCSP24 device-reducing component count by ≥9 parts and PCB area by >15 mm² versus dual-chip solutions.
Availability
IP4853CX24/P,135 is available at Aetrix Electronics and suitable for mobile phone memory interfaces, digital camera card slots, laptop card readers, and industrial handheld scanners requiring stable component supply and long-term lifecycle support.
Supply support for IP4853CX24/P,135 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and consumer applications.
The IP4853CX24/P,135 belongs to NXP's interface protection and level-shifting product line, designed specifically to simplify SD/microSD/MMC integration in battery-powered portable electronics with stringent size and EMI constraints.
FAQ
What is the maximum continuous output current of the IP4853CX24/P,135 voltage regulator?
The IP4853CX24/P,135 voltage regulator delivers up to 200 mA continuously at its VSD output pin while maintaining 2.9 V regulation (min 2.75 V) with ≤150 mV dropout. This meets the peak current demand of Class 10 SD cards and supports reliable operation across the full −30 °C to +85 °C ambient range.
Does the IP4853CX24/P,135 support UHS-I SD card speeds?
Yes, the IP4853CX24/P,135 supports UHS-I operation with 7.0 ns typical propagation delay (host→card, CL = 20 pF) and <2.5 ns transition time on memory card-side outputs. Its EMI filters provide ≥17 dB insertion loss at 1.4 GHz, suppressing harmonics that interfere with UHS-I 104 MHz clock signals.
How does the IP4853CX24/P,135 handle card detect (CD) and write protect (WP) signals?
The IP4853CX24/P,135 provides dedicated CD and WP outputs (pins D3 and E4) with integrated biasing: CD uses a 470 kΩ pull-down, WP uses a 100 kΩ pull-up. These eliminate external resistors and ensure compliant SD card mechanical switch interfacing per SD Physical Layer Specification v3.01.
What PCB layout guidelines are required for optimal ESD performance of the IP4853CX24/P,135?
For optimal ESD performance, the IP4853CX24/P,135 requires Non-Solder Mask Defined (NSMD) pads, laser-drilled micro-vias (100 μm diameter) connecting GND bumps (C3/C4) directly to an internal ground plane, and 225 μm pad diameter. This minimizes ground inductance and ensures IEC 61000-4-2 Level 4 immunity.
Can the IP4853CX24/P,135 operate with a 1.62 V host supply voltage?
Yes, the IP4853CX24/P,135 is fully functional with VCC as low as 1.62 V (min operating voltage). Its VIH threshold is 0.65 × VCC, ensuring reliable logic recognition at 1.05 V, and VOL remains ≤0.45 V at 3 mA load - supporting modern ultra-low-voltage mobile SoCs.
IP4853CX24/P,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 24-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Cell Phones, Digital Cameras, Media Players
- Interface:
- microSD™, MMC, SD
- Voltage - Supply:
- 1.62V ~ 2.1V
- Supplier Device Package:
- 24-WLCSP (5x5)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
IP4853CX24/P,135 FAQ
1.How can I place an order for IP4853CX24/P,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for IP4853CX24/P,135 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for IP4853CX24/P,135 reliable?
The price and inventory of IP4853CX24/P,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IP4853CX24/P,135 is usually 5 days.
3.What payment methods are accepted for IP4853CX24/P,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IP4853CX24/P,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IP4853CX24/P,135?
IP4853CX24/P,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IP4853CX24/P,135 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for IP4853CX24/P,135?
For technical support, including IP4853CX24/P,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IP4853CX24/P,135 requirements.
6.How does Aetrix verify that IP4853CX24/P,135 is sourced from the original manufacturer or authorized distributors?
All IP4853CX24/P,135 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IP4853CX24/P,135 meets industry standards.
7.What is the process for return or replacement of IP4853CX24/P,135?
All IP4853CX24/P,135 units undergo pre-shipment inspection (PSI). If there is an issue with IP4853CX24/P,135, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The IP4853CX24/P,135 part is unused and in its original packaging.
Return procedure for IP4853CX24/P,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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