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Renesas R1RP0416DSB-2PI#B0
- Part No.:
- R1RP0416DSB-2PI#B0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
R1RP0416DSB-2PI#B0.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:4,439
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Product details
Overview
R1RP0416DSB-2PI#B0 from Renesas Electronics is a 4-Mbit high-speed static RAM organized as 256-kword × 16-bit, operating from a single 5.0 V ±10% supply, with 12 ns maximum access time and −40 to +85°C industrial temperature range. It serves as cache or buffer memory in embedded systems requiring wide data bus width and deterministic static timing.
For engineers reviewing the R1RP0416DSB-2PI#B0 datasheet, R1RP0416DSB-2PI#B0 pinout, R1RP0416DSB-2PI#B0 application, or R1RP0416DSB-2PI#B0 equivalent, this page delivers verified package mapping (400-mil 44-pin plastic TSOPII), byte-selectable I/O architecture, TTL-compatible interface, standby current values (40 mA TTL / 5 mA CMOS), and functional distinctions versus SOJ-packaged variants.
Technical Context
This SRAM implements a fully static 6-transistor memory cell array with no clocks or refresh required. Its dual-byte control (UB#/LB#) enables independent 8-bit writes without masking logic, and center VCC/VSS pinout reduces simultaneous switching noise in high-density PCB layouts.
The device supports three write enable modes-WE#-controlled, CS#-controlled, and LB#/UB#-controlled-with identical 12 ns cycle time across all configurations. All inputs and outputs are directly TTL-compatible, eliminating level-shifting components in mixed-logic systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 4 Mbit (256 kwords × 16 bits) - supports 16-bit microprocessor data buses without external multiplexing |
| Access time | 12 ns max - enables direct interfacing with 80 MHz bus cycles without wait states |
| Supply voltage | 5.0 V ±10% - compatible with legacy 5 V TTL/CMOS system rails |
| Operating temperature | −40°C to +85°C - qualified for industrial-grade embedded applications |
| Standby current | 5 mA (CMOS mode) - enables low-power sleep states in battery-backed systems |
| I/O interface | TTL-compatible inputs/outputs - eliminates need for level translators in 5 V logic domains |
| Byte select | Independent UB# and LB# pins - allows granular 8-bit writes without read-modify-write overhead |
Pinout & Package
Package: 400-mil 44-pin plastic TSOPII (44P3W-H), surface-mount, JEDEC-standard footprint with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address input | 18-bit address bus supporting full 256-kword addressing space |
| I/O1–I/O8 | Lower data byte I/O | Bi-directional 8-bit data path enabled by LB# assertion |
| I/O9–I/O16 | Upper data byte I/O | Bi-directional 8-bit data path enabled by UB# assertion |
| CS# | Chip select | Active-low global enable; places device in standby when high |
| OE# | Output enable | Active-low control for output drivers; high-Z when deasserted during writes |
| WE# | Write enable | Active-low signal initiating write cycles; latches data on falling edge |
| UB# | Upper byte select | Active-low control enabling I/O9–I/O16 during reads/writes |
| LB# | Lower byte select | Active-low control enabling I/O1–I/O8 during reads/writes |
| VCC | Power supply | 5 V core and I/O supply; center-placed to minimize IR drop and noise coupling |
| VSS | Ground | Reference ground; center-placed adjacent to VCC for balanced power delivery |
| NC | No connection | Pin 31 is unconnected; must remain floating per design specification |
Key Features
| Feature | Design Value |
|---|---|
| Single 5 V supply operation | Eliminates dual-rail power design complexity and reduces BOM count in legacy 5 V systems |
| Equal access and cycle times | Guarantees predictable timing behavior across read/write operations without variable latency penalties |
| Center VCC/VSS pinout | Reduces simultaneous switching output (SSO) noise and improves signal integrity in dense routing environments |
| CMOS standby current (5 mA) | Enables energy-efficient operation in intermittently active embedded controllers and data loggers |
| Direct TTL compatibility | Permits seamless integration with 74-series logic, microcontrollers, and FPGAs without interface buffers |
Applications
| Industrial PLC Data Buffer | Legacy Embedded Controller Cache |
|---|---|
Use Scenario: Real-time I/O scanning and program execution in programmable logic controllers with 16-bit data paths. IC Role / Device Role / Timing Role: High-speed buffer for transient process data between CPU and field I/O modules. Use Value: 12 ns access ensures deterministic response within tight scan-cycle deadlines without bus arbitration delays. |
Use Scenario: Instruction and operand caching for 16-bit microcontrollers in medical diagnostic equipment. IC Role / Device Role / Timing Role: Static RAM used as zero-wait-state cache to accelerate firmware execution. Use Value: Fully static operation eliminates refresh overhead, preserving deterministic timing critical for safety-critical subsystems. |
| Automated Test Equipment Memory | Digital Signal Acquisition Buffer |
Use Scenario: Pattern storage and result buffering in boundary-scan test systems with parallel 16-bit data interfaces. IC Role / Device Role / Timing Role: Non-volatile-accessible scratchpad memory for test vector sequencing. Use Value: Byte-select capability allows efficient partial updates of test patterns without full-word overwrites. |
Use Scenario: Intermediate storage for multi-channel ADC samples prior to DSP processing in spectrum analyzers. IC Role / Device Role / Timing Role: High-bandwidth data capture buffer synchronized to sampling clock domain. Use Value: 16-bit bus width matches typical ADC output formats, minimizing glue logic and serialization overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61LV25616AL-12TQLI | 3.3 V supply only; 12 ns access; 44-pin TSOP II same footprint | Requires level translation in 5 V systems; lower power but incompatible rail | Select only if migrating to 3.3 V system architecture and redesigning power delivery |
| R1RP0416DGE-2PI | Identical electrical specs; differs only in 44-pin SOJ (44P0K) packaging | Through-hole assembly; incompatible with SMT-only production lines | Choose only for legacy through-hole designs or prototyping with breadboard adapters |
Compared with IS61LV25616AL-12TQLI and R1RP0416DGE-2PI, the R1RP0416DSB-2PI#B0 uniquely combines 5 V operation, TSOPII surface-mount compatibility, and industrial temperature range-making it the sole option for new 5 V SMT-based industrial controllers requiring drop-in replacement of aging SRAMs.
Availability
R1RP0416DSB-2PI#B0 is available at Aetrix Electronics and suitable for industrial PLC data buffering, legacy embedded controller caching, automated test equipment memory, and digital signal acquisition buffering requiring stable component supply and long-term lifecycle support.
Supply support for R1RP0416DSB-2PI#B0 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 is a Japanese semiconductor manufacturer formed in 2010 via merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power, and memory solutions for industrial and automotive markets.
The R1RP0416DI Series was designed specifically for high-speed, wide-bus-width memory applications in industrial control and embedded computing where deterministic static timing, 5 V compatibility, and extended temperature operation are mandatory.
FAQ
What is the correct package type for R1RP0416DSB-2PI#B0?
The R1RP0416DSB-2PI#B0 uses a 400-mil 44-pin plastic TSOPII package (JEDEC designation 44P3W-H), confirmed in the official Renesas ordering information table. This surface-mount package features gull-wing leads and is distinct from the SOJ variant (R1RP0416DGE-2PI). The TSOPII footprint supports automated reflow assembly and offers better thermal performance than SOJ in high-density layouts.
Does R1RP0416DSB-2PI#B0 support true static operation without clocks or refresh cycles?
Yes, the R1RP0416DSB-2PI#B0 is a fully static RAM implementing a 6-transistor memory cell design. It requires no clocks, timers, or periodic refresh signals-data retention is maintained indefinitely as long as VCC remains within specification and CS# is held high during standby. This eliminates timing-critical refresh overhead in real-time embedded applications.
What are the valid voltage levels for input signals on R1RP0416DSB-2PI#B0?
Per the Renesas DC operating conditions, R1RP0416DSB-2PI#B0 accepts VIH ≥ 2.2 V and VIL ≤ 0.8 V at VCC = 5.0 V, making it directly compatible with standard TTL logic families. Input voltages may undershoot to −2.0 V or overshoot to VCC + 2.0 V for pulses ≤ 6 ns, accommodating transient noise without latch-up risk.
How does byte selection work on R1RP0416DSB-2PI#B0 during write operations?
The R1RP0416DSB-2PI#B0 uses separate active-low UB# and LB# pins to control upper (I/O9–I/O16) and lower (I/O1–I/O8) byte lanes independently. During a write, asserting only LB# enables writing to the lower byte while leaving upper byte contents unchanged-eliminating read-modify-write sequences and reducing bus contention in multi-master systems.
Is R1RP0416DSB-2PI#B0 suitable for automotive applications?
No, the R1RP0416DSB-2PI#B0 is rated for industrial temperature range (−40°C to +85°C) and classified as "Standard" quality grade per Renesas documentation. It is not qualified for automotive use, which requires "High Quality" grade parts with AEC-Q100 qualification, extended temperature ranges (−40°C to +125°C), and enhanced reliability testing.
R1RP0416DSB-2PI#B0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 44-TSOP (0.400", 10.16mm Width)
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM
- Memory Size:
- 4Mbit
- Memory Organization:
- 256K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 12ns
- Access Time:
- 12 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
R1RP0416DSB-2PI#B0 FAQ
1.How can I place an order for R1RP0416DSB-2PI#B0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1RP0416DSB-2PI#B0 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 R1RP0416DSB-2PI#B0 reliable?
The price and inventory of R1RP0416DSB-2PI#B0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1RP0416DSB-2PI#B0 is usually 5 days.
3.What payment methods are accepted for R1RP0416DSB-2PI#B0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1RP0416DSB-2PI#B0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1RP0416DSB-2PI#B0?
R1RP0416DSB-2PI#B0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1RP0416DSB-2PI#B0 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 R1RP0416DSB-2PI#B0?
For technical support, including R1RP0416DSB-2PI#B0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1RP0416DSB-2PI#B0 requirements.
6.How does Aetrix verify that R1RP0416DSB-2PI#B0 is sourced from the original manufacturer or authorized distributors?
All R1RP0416DSB-2PI#B0 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 R1RP0416DSB-2PI#B0 meets industry standards.
7.What is the process for return or replacement of R1RP0416DSB-2PI#B0?
All R1RP0416DSB-2PI#B0 units undergo pre-shipment inspection (PSI). If there is an issue with R1RP0416DSB-2PI#B0, 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 R1RP0416DSB-2PI#B0 part is unused and in its original packaging.
Return procedure for R1RP0416DSB-2PI#B0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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