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Infineon Technologies S27KL0643DPBHV020
- Part No.:
- S27KL0643DPBHV020
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 24-VBGA
- Datasheet:
-
S27KL0643DPBHV020.pdf
- Description:
- IC PSRAM 64MBIT SPI/OCTAL 24FBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,965
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Product details
Overview
S27KL0643DPBHV020 from Infineon is a 64Mb self-refresh DRAM (PSRAM) with octal xSPI interface, supporting 1.8 V/3.0 V I/O, 200 MHz DDR clocking, and 400 MBps data throughput. It operates in industrial-plus temperature range (–40°C to +105°C), uses 24-ball FBGA package, and delivers linear/wrapped burst lengths up to 128 bytes for high-bandwidth microcontroller offload memory in embedded vision systems.
For engineers reviewing the S27KL0643DPBHV020 datasheet, S27KL0643DPBHV020 pinout, S27KL0643DPBHV020 application, or S27KL0643DPBHV020 equivalent, this device serves as a low-pin-count, high-throughput PSRAM alternative to parallel SRAM and LPDDR in resource-constrained MCU-based designs requiring deterministic latency and simplified layout.
Technical Context
The S27KL0643DPBHV020 implements an xSPI-compliant octal DDR interface with 11–12 signal lines (including optional CK#/RWDS/DCARS), using LV-CMOS signaling and supporting both single-ended and differential clock modes. Its internal refresh controller eliminates host-managed refresh cycles, enabling static RAM-like access semantics while retaining DRAM density advantages.
It supports configurable burst types (linear, wrapped, hybrid), programmable output drive strength, and multiple power states - including Hybrid Sleep and Deep Power Down - with sub-15 µA current draw in deep power down at 105°C. Memory array is built on 38-nm DRAM technology with partial refresh capability (1/8, 1/4, 1/2).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (8 MB), organized as 8,388,608 × 8-bit for direct byte-addressable access |
| Clock Rate | Up to 200 MHz DDR - enables 400 MBps sustained throughput without complex timing closure |
| Interface | Octal xSPI - reduces signal count vs. parallel interfaces while maintaining bandwidth |
| Burst Length | Configurable: 16/32/64/128 bytes - balances latency, bus efficiency, and cache line alignment |
| Power Modes | Hybrid Sleep & Deep Power Down - achieves ≤15 µA standby current for battery-sensitive applications |
| Operating Temp | –40°C to +105°C (Industrial Plus grade) - qualified for extended-temperature edge computing deployments |
| Supply Voltage | 1.8 V or 3.0 V VCC/VCCQ - dual-voltage support simplifies integration across mixed-supply SoC platforms |
Pinout & Package
Package: 24-ball FBGA, 5 mm × 5 mm, 0.8 mm pitch, RoHS-compliant, with ball map optimized for signal integrity and thermal dissipation in dense PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select | Active-low enable for command decoding; must be held low for entire transaction duration |
| CK / CK# | Clock Input (optional differential) | DDR timing reference; CK# enables noise-immune clock reception in high-EMI environments |
| RWDS | Read-Write Data Strobe | Bidirectional: output during reads (data valid indicator), input during writes (byte mask control) |
| DQ[7:0] | Data I/O Bus | Octal bidirectional data path; transfers two bytes per CK cycle in DDR mode |
| RESET# | Hardware Reset | Asynchronous active-low reset that clears internal state and forces re-initialization sequence |
Key Features
| Feature | Design Value |
|---|---|
| Self-refresh DRAM architecture | Eliminates host refresh overhead - appears as static RAM to firmware, reducing driver complexity |
| DCARS (DDR Center-Aligned Read Strobe) | Phase-shifts RWDS edge into center of read data eye, improving timing margin for high-speed sampling |
| Configurable output drive strength | Allows optimization of signal integrity and EMI for varying trace lengths and load conditions |
| Partial array refresh | Reduces refresh power by refreshing only active memory segments (1/8, 1/4, or 1/2 array) |
| Hybrid Sleep mode | Retains data while cutting dynamic power >90% vs. active mode - ideal for intermittent sensor logging |
Applications
| Automotive ADAS Camera Buffer | Industrial HMI Frame Buffer |
|---|---|
Use Scenario: Stores real-time image frames from 1–2 MP CMOS sensors before GPU processing or compression. IC Role / Device Role / Timing Role: Offloads frame buffering from MCU internal SRAM; provides deterministic 35 ns tACC and burst-aligned access for pixel pipeline synchronization. Use Value: Enables 60 fps full-resolution capture using only 11 signal lines, avoiding LPDDR PHY complexity and layout congestion. | Use Scenario: Holds GUI assets (bitmaps, fonts, overlay layers) for ARM Cortex-A/M-based HMIs with limited external memory bandwidth. IC Role / Device Role / Timing Role: Acts as high-speed, low-latency display memory mapped directly into CPU address space via xSPI controller. Use Value: Delivers 400 MBps throughput at 200 MHz DDR - sufficient for 1080p@60Hz UI rendering without frame tearing. |
| Edge AI Inference Scratchpad | Medical Imaging Data Buffer |
Use Scenario: Provides temporary storage for intermediate tensors during lightweight neural network inference on Cortex-M7/M33 MCUs. IC Role / Device Role / Timing Role: Serves as low-power, high-bandwidth scratchpad memory with burst-aligned access to accelerate convolution layer outputs. Use Value: Reduces inference latency by 3.2× vs. SPI flash and avoids external DDR power/PCB cost in portable diagnostic devices. | Use Scenario: Buffers raw ultrasound or X-ray scan data before transmission to host PC or local storage. IC Role / Device Role / Timing Role: High-reliability, AEC-Q100 Grade 2 qualified PSRAM ensuring data integrity during continuous acquisition bursts. Use Value: Supports –40°C to +105°C operation and ≤15 µA deep power down - critical for fanless, sealed medical enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PSRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Cypress S27KS0643DPBHV020 | Same die, identical pinout and timing; rebranded part pre-acquisition - functionally identical | No functional difference; legacy ordering channel only | Select when sourcing from legacy Cypress-distributed inventory |
| ISSI IS66WV1288GBLL-150B3LI | Parallel 128Mb SRAM, 15 ns access, 3.3 V only - no self-refresh, higher pin count (48-pin TSOP) | Requires full parallel bus and external refresh management; unsuitable for xSPI-only hosts | Choose only if existing design uses parallel SRAM interface and cannot adopt xSPI |
Compared with S27KS0643DPBHV020 (identical), and IS66WV1288GBLL-150B3LI (parallel, no self-refresh), the S27KL0643DPBHV020 uniquely delivers octal xSPI bandwidth with zero-host refresh overhead in a 24-ball footprint - making it optimal for new MCU-based designs prioritizing layout simplicity and power efficiency.
Availability
S27KL0643DPBHV020 is available at Aetrix Electronics and suitable for automotive ADAS camera buffers, industrial HMI frame buffers, edge AI inference scratchpads, and medical imaging data buffers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S27KL0643DPBHV020 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and memory solutions, with global R&D and manufacturing infrastructure.
The HYPERRAM™ product line targets high-bandwidth, low-pin-count memory expansion for microcontrollers and SoCs - specifically designed to replace parallel SRAM and simplify DDR integration in cost- and space-constrained embedded systems.
FAQ
Does S27KL0643DPBHV020 require external refresh circuitry?
No. The device integrates autonomous self-refresh logic that manages DRAM array refresh without host intervention. The host sees static RAM-like behavior, though it must observe maximum burst length limits to allow internal refresh cycles between transactions.
What is the purpose of the RWDS signal?
RWDS is a bidirectional strobe: during reads, it outputs a pulse aligned to data validity; during writes, it functions as a byte mask enabling selective DQ[7:0] lane write-enable. Its timing is critical for DDR data capture and must be routed with matched length to CK.
Can S27KL0643DPBHV020 operate at both 1.8 V and 3.0 V simultaneously?
No. VCC and VCCQ must be supplied at the same nominal voltage - either 1.8 V or 3.0 V - as defined by the ordering part number. Mixed-voltage operation is not supported and may damage the device.
Is DCARS functionality enabled by default?
DCARS is disabled by default. It must be activated via the Device Configuration Register (DCR) using a WRITE ANY REGISTER command. Once enabled, RWDS transitions are phase-shifted relative to CK to center-align with read data eye.
S27KL0643DPBHV020 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HYPERRAM™ KL
- Package/Case:
- 24-VBGA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- PSRAM
- Technology:
- PSRAM (Pseudo SRAM)
- Memory Size:
- 64Mbit
- Memory Organization:
- 8M x 8
- Memory Interface:
- SPI - Octal I/O
- Clock Frequency:
- 166 MHz
- Write Cycle Time - Word, Page:
- 36ns
- Access Time:
- 36 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-FBGA (6x8)
S27KL0643DPBHV020 FAQ
1.How can I place an order for S27KL0643DPBHV020 through Aetrix?
Please submit a Request for Quotation (RFQ) for S27KL0643DPBHV020 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 S27KL0643DPBHV020 reliable?
The price and inventory of S27KL0643DPBHV020 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S27KL0643DPBHV020 is usually 5 days.
3.What payment methods are accepted for S27KL0643DPBHV020?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S27KL0643DPBHV020 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S27KL0643DPBHV020?
S27KL0643DPBHV020 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S27KL0643DPBHV020 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 S27KL0643DPBHV020?
For technical support, including S27KL0643DPBHV020 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S27KL0643DPBHV020 requirements.
6.How does Aetrix verify that S27KL0643DPBHV020 is sourced from the original manufacturer or authorized distributors?
All S27KL0643DPBHV020 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 S27KL0643DPBHV020 meets industry standards.
7.What is the process for return or replacement of S27KL0643DPBHV020?
All S27KL0643DPBHV020 units undergo pre-shipment inspection (PSI). If there is an issue with S27KL0643DPBHV020, 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 S27KL0643DPBHV020 part is unused and in its original packaging.
Return procedure for S27KL0643DPBHV020:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S27KL0643DPBHV020 Tags
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