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Home > Products > Integrated Circuits (ICs) > Memory > Controllers

Renesas UPD48576236FF-E24-DW1

Name: UPD48576236FF-E24-DW1
Brand: Renesas
SKU: UPD48576236FF-E24-DW1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: UPD48576236FF-E24-DW1

Manufacturer:: Renesas

Category:: Controllers

Package:: -

Datasheet:: UPD48576236FF-E24-DW1.pdf

Description:: DDR DRAM, 16MX36, 0.3NS

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Product details

Overview

UPD48576236FF-E24-DW1 from NEC Electronics (now Renesas) is a 576M-bit synchronous double-data-rate low-latency DRAM with 16,777,216-word × 36-bit organization across eight banks, HSTL I/O interface, 400 MHz operation (2.5 ns clock cycle), and 144-pin TAPE FBGA package. It serves as high-bandwidth, low-latency memory in network packet buffers and real-time video frame stores.

For engineers reviewing the UPD48576236FF-E24-DW1 datasheet, UPD48576236FF-E24-DW1 pinout, UPD48576236FF-E24-DW1 application, or UPD48576236FF-E24-DW1 equivalent, this page delivers verified specifications, x36 common-I/O pin mapping, burst-length programmability, differential clocking (CK/CK#, DK/DK#), QVLD timing validation, and impedance-tunable DQ outputs for DDR system integration.

Technical Context

This device implements a non-multiplexed address architecture with dedicated A0–A19 inputs and BA0–BA2 bank selects, enabling deterministic access latency. Its dual differential data clocks (DK0/DK0#, DK1/DK1#) independently reference DQ0–DQ17 and DQ18–DQ35, supporting concurrent 36-bit wide transfers without skew-induced timing violations.

The integrated PLL synchronizes internal operations to CK/CK#, while JTAG boundary scan (TMS/TCK/TDI/TDO) enables production testability. Programmable output impedance (25 Ω–60 Ω via ZQ resistor) and on-die termination support signal integrity across high-speed PCB traces without external resistors.

Key Specifications

Parameter	Value and Actual Design Meaning
Density & Organization	576 Mbit total; 16,777,216 words × 36 bits × 8 banks - enables full 36-bit parallel data path with bank-interleaved access for sustained bandwidth.
Clock Frequency	400 MHz (t_CK = 2.5 ns) - supports 800 MT/s data rate with double-data-rate architecture.
Interface Standard	HSTL Class I - ensures compatible voltage thresholds (V_REF = V_DDQ/2) and timing margins for high-speed signaling.
Power Supplies	V_EXT = 2.5 V ± 0.12 V; V_DD = 1.8 V ± 0.1 V; V_DDQ = 1.5 V or 1.8 V ± 0.1 V - separates core logic, I/O, and termination supplies for noise isolation.
Burst Length	Programmable 2/4/8 - allows optimization of burst efficiency versus command overhead in streaming applications.
Refresh Cycle	Auto-refresh: 128K cycles / 32 ms total - meets JEDEC requirements for data retention without host intervention.
Operating Temperature	T_C = 0 °C to +95 °C - qualified for industrial-grade thermal environments in networking and broadcast equipment.

Pinout & Package

144-pin TAPE FBGA (18.5 mm × 11 mm), lead-free, with 0.8 mm ball pitch. Package supports automated placement and reflow soldering per J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
A0–A19	Address inputs	Non-multiplexed row/column address lines; A20–A22 reserved - eliminates address setup/hold timing constraints during burst access.
BA0–BA2	Bank address inputs	Selects one of eight independent memory banks for interleaved access and reduced row activation overhead.
DQ0–DQ35	Data I/O (x36)	36-bit bidirectional bus; DQ0–DQ17 referenced to DK0/DK0#, DQ18–DQ35 to DK1/DK1# - enables simultaneous dual-lane data transfer.
CK, CK#	Differential system clock	Registers all commands and addresses on rising edge; defines t_CK = 2.5 ns timing base for 400 MHz operation.
DK0/DK0#, DK1/DK1#	Differential input data clocks	Sample WRITE data on both edges; DK0 controls DQ0–DQ17, DK1 controls DQ18–DQ35 - eliminates inter-byte skew in wide-bus systems.
QK0/QK0#, QK1/QK1#	Differential output data clocks	Edge-aligned with respective DQ groups; QK0 with DQ0–DQ17, QK1 with DQ18–DQ35 - provides receiver-synchronized strobes for reliable capture.
QVLD	Data valid indicator	Asserted coincident with valid DQ output; aligned to QK edges - eliminates need for fixed delay calibration in FPGA receivers.
DM	Data mask input	Per-burst masking of WRITE data when sampled HIGH on DK edges - supports partial writes without read-modify-write cycles.
ZQ	Impedance calibration reference	Connects to external resistor to set DQ output impedance between 25 Ω and 60 Ω - matches PCB trace impedance for minimal reflections.
VREF	HSTL input reference	Nominally V_DDQ/2; stabilizes input threshold against supply noise - critical for robust command/address sampling at 400 MHz.

Key Features

Feature	Design Value
SRAM-type interface	Non-multiplexed address and dedicated control pins eliminate address/command bus contention, simplifying controller logic and reducing access latency.
Double-data-rate architecture	Transfers data on both CK edges at 400 MHz, delivering 800 MT/s effective rate on 36-bit bus - achieves 28.8 GB/s peak bandwidth.
Programmable burst length	2/4/8 configurable via mode register - balances throughput efficiency (long bursts) against flexibility and latency (short bursts) in real-time systems.
User-programmable DQ impedance	25 Ω–60 Ω tuning via ZQ resistor - adapts output drive strength to PCB stackup and trace length without redesigning layout.
Differential clocking (CK/CK#, DK/DK#, QK/QK#)	Common-mode noise rejection and precise edge alignment - enables reliable operation at 2.5 ns clock period with <±300 ps jitter tolerance.
JTAG boundary scan	IEEE 1149.1 compliance with TMS/TCK/TDI/TDO - supports automated test and debug of solder joints and interconnects in dense BGA layouts.

Applications

Network Packet Buffer	Real-Time Video Frame Store
Use Scenario: Storing incoming/outgoing Ethernet frames in Layer 2/3 switches before forwarding or classification. IC Role / Device Role / Timing Role: High-throughput, low-latency buffer with bank-interleaved access to absorb bursty traffic without packet loss. Use Value: 36-bit width and 400 MHz clock enable 28.8 GB/s sustained bandwidth, matching 100 GbE line rates with minimal buffering latency.	Use Scenario: Holding uncompressed 4K UHD video frames (3840×2160×30 fps) in broadcast encoders or medical imaging systems. IC Role / Device Role / Timing Role: Frame buffer with deterministic read/write timing and QVLD-synchronized output for pixel-clock-aligned display engines. Use Value: QK0/QK1 strobes and QVLD signal eliminate receiver-side deskew logic, reducing FPGA resource usage and timing closure effort.
High-Speed Test Equipment Memory	Radar Signal Processing Buffer
Use Scenario: Capturing high-sample-rate analog waveforms (≥1 GS/s) in automated test equipment for post-processing analysis. IC Role / Device Role / Timing Role: Deep, fast-access memory with programmable burst length to match arbitrary trigger window sizes. Use Value: Non-multiplexed addressing and SRAM-like interface simplify controller design, enabling direct connection to high-speed ADC/DAC interfaces.	Use Scenario: Buffering digitized radar return signals (pulse-Doppler processing) requiring low-latency access across multiple processing stages. IC Role / Device Role / Timing Role: Low-latency DRAM with auto-refresh and bank management to sustain continuous data flow without interruption. Use Value: 8-bank architecture allows overlapping refresh and active access, ensuring uninterrupted data availability during long FFT computations.

Network Packet Buffer

Real-Time Video Frame Store

Use Scenario: Storing incoming/outgoing Ethernet frames in Layer 2/3 switches before forwarding or classification.

IC Role / Device Role / Timing Role: High-throughput, low-latency buffer with bank-interleaved access to absorb bursty traffic without packet loss.

Use Value: 36-bit width and 400 MHz clock enable 28.8 GB/s sustained bandwidth, matching 100 GbE line rates with minimal buffering latency.

Use Scenario: Holding uncompressed 4K UHD video frames (3840×2160×30 fps) in broadcast encoders or medical imaging systems.

IC Role / Device Role / Timing Role: Frame buffer with deterministic read/write timing and QVLD-synchronized output for pixel-clock-aligned display engines.

Use Value: QK0/QK1 strobes and QVLD signal eliminate receiver-side deskew logic, reducing FPGA resource usage and timing closure effort.

High-Speed Test Equipment Memory

Radar Signal Processing Buffer

Use Scenario: Capturing high-sample-rate analog waveforms (≥1 GS/s) in automated test equipment for post-processing analysis.

IC Role / Device Role / Timing Role: Deep, fast-access memory with programmable burst length to match arbitrary trigger window sizes.

Use Value: Non-multiplexed addressing and SRAM-like interface simplify controller design, enabling direct connection to high-speed ADC/DAC interfaces.

Use Scenario: Buffering digitized radar return signals (pulse-Doppler processing) requiring low-latency access across multiple processing stages.

IC Role / Device Role / Timing Role: Low-latency DRAM with auto-refresh and bank management to sustain continuous data flow without interruption.

Use Value: 8-bank architecture allows overlapping refresh and active access, ensuring uninterrupted data availability during long FFT computations.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-bandwidth, low-latency DRAM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IS42S32800F-6BLI	32M × 32-bit SDRAM (1 Gbit), 166 MHz clock, LVTTL interface, 168-pin TSOP - lacks differential clocks, QVLD, and programmable impedance.	Lower bandwidth (2.66 GB/s), higher latency, no HSTL - suitable only for cost-sensitive, non-real-time applications.	Select if system clock ≤ 166 MHz and board layout cannot support HSTL routing or differential pairs.
MT47H64M16HR-37E:H	64M × 16-bit DDR2 SDRAM (1 Gbit), 266 MHz, SSTL-18 interface, 84-pin FBGA - supports DLL but no QVLD or ZQ calibration.	Half the data width (16-bit), no output strobe synchronization - requires wider bus or multiplexing for equivalent throughput.	Choose when DDR2 compatibility and lower power (1.8 V V_DDQ) are prioritized over deterministic output timing and 36-bit native width.

Compared with IS42S32800F-6BLI and MT47H64M16HR-37E:H, UPD48576236FF-E24-DW1 delivers 10.8× higher peak bandwidth (28.8 vs. 2.66 GB/s), deterministic QVLD-synchronized output for zero-skew capture, and ZQ-calibrated DQ drive - making it uniquely suited for 100 GbE, 4K video, and real-time signal processing where timing predictability is non-negotiable.

Availability

UPD48576236FF-E24-DW1 is available at Aetrix Electronics and suitable for network packet buffers, real-time video frame stores, and high-speed test equipment requiring stable component supply, industrial temperature operation, and long-term obsolescence management.

Supply support for UPD48576236FF-E24-DW1 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

Renesas Electronics Corporation (formerly NEC Electronics) is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and communications markets.

UPD48576236FF-E24-DW1 belongs to the μPD48576xx family of low-latency DDR DRAMs designed specifically for applications demanding deterministic timing, high bandwidth, and robust signal integrity - such as telecom infrastructure, broadcast video, and defense electronics.

FAQ

What is the maximum operating frequency of the UPD48576236FF-E24-DW1?

The UPD48576236FF-E24-DW1 operates at 400 MHz with a 2.5 ns clock cycle (t_CK). This is confirmed by the "–E24" suffix in the part number and specified in the Ordering Information table on page 2 of R10DS0063EJ0300 Rev.3.00. It supports 800 MT/s data transfer using double-data-rate architecture.

Does the UPD48576236FF-E24-DW1 support differential input data clocks?

Yes, the UPD48576236FF-E24-DW1 supports two pairs of differential input data clocks: DK0/DK0# for DQ0–DQ17 and DK1/DK1# for DQ18–DQ35. This is explicitly defined in the Pin Description (page 6) and Pin Arrangement (page 5) of the datasheet, enabling skew-free wide-bus timing.

How is output impedance controlled on the UPD48576236FF-E24-DW1?

Output impedance on the UPD48576236FF-E24-DW1 is controlled via the ZQ pin, which connects to an external resistor to VSS. The device tunes DQ output impedance to 0.2 × R_Q, supporting 25 Ω to 60 Ω range. This function is enabled via Mode Register Bit A8, as described on page 7 of R10DS0063EJ0300 Rev.3.00.

What is the purpose of the QVLD signal on the UPD48576236FF-E24-DW1?

The QVLD (Data Valid) signal on the UPD48576236FF-E24-DW1 indicates when output data on DQ0–DQ35 is valid and stable. It is edge-aligned with QK0/QK1 output clocks and guarantees timing correlation across all 36 bits - eliminating the need for per-bit deskew in receiving logic.

Is the UPD48576236FF-E24-DW1 pin-compatible with other members of the μPD48576xx family?

No, the UPD48576236FF-E24-DW1 is not pin-compatible with μPD48576209 or μPD48576218 variants. While all share the same 144-pin TAPE FBGA footprint, the x36 configuration uses DQ0–DQ35 and dual DK/QK pairs, whereas x9/x18 variants use fewer DQs and single DK/QK - requiring distinct PCB layouts and controller firmware.

UPD48576236FF-E24-DW1 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

Controller Type:: -

Voltage - Supply:: -

Operating Temperature:: -

Mounting Type:: -

Supplier Device Package:: -

UPD48576236FF-E24-DW1 FAQ

1.How can I place an order for UPD48576236FF-E24-DW1 through Aetrix?

Please submit a Request for Quotation (RFQ) for UPD48576236FF-E24-DW1 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 UPD48576236FF-E24-DW1 reliable?

The price and inventory of UPD48576236FF-E24-DW1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD48576236FF-E24-DW1 is usually 5 days.

3.What payment methods are accepted for UPD48576236FF-E24-DW1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD48576236FF-E24-DW1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for UPD48576236FF-E24-DW1?

UPD48576236FF-E24-DW1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your UPD48576236FF-E24-DW1 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 UPD48576236FF-E24-DW1?

For technical support, including UPD48576236FF-E24-DW1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD48576236FF-E24-DW1 requirements.

6.How does Aetrix verify that UPD48576236FF-E24-DW1 is sourced from the original manufacturer or authorized distributors?

All UPD48576236FF-E24-DW1 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 UPD48576236FF-E24-DW1 meets industry standards.

7.What is the process for return or replacement of UPD48576236FF-E24-DW1?

All UPD48576236FF-E24-DW1 units undergo pre-shipment inspection (PSI). If there is an issue with UPD48576236FF-E24-DW1, 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 UPD48576236FF-E24-DW1 part is unused and in its original packaging.

Return procedure for UPD48576236FF-E24-DW1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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