Renesas 71V67803S150BG
- Part No.:
- 71V67803S150BG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 119-BGA
- Datasheet:
-
71V67803S150BG.pdf
- Description:
- IC SRAM 9MBIT PAR 150MHZ 119PBGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
71V67803S150BG from IDT (now Renesas) is a 512K × 18-bit, 3.3V synchronous SRAM with pipelined outputs, single-cycle deselect, and 150MHz operation (3.8ns clock access time). It supports linear/interleaved burst modes via LBO input, features global and byte-level write control (GW/BWE/BW1–BW2), and operates across industrial temperature range (–40°C to +85°C) in a 100-pin TQFP package. It serves as high-speed cache or buffer memory in networking line cards and real-time DSP subsystems.
For engineers reviewing the 71V67803S150BG datasheet, 71V67803S150BG pinout, 71V67803S150BG application, or 71V67803S150BG equivalent, key selection criteria include burst timing compliance, ZZ sleep-mode current (≤70mA), VDDQ = 3.3V ±5% I/O supply tolerance, and absence of BW3/BW4 pins - confirmed for this variant per Pin Definitions Note 1.
Technical Context
The 71V67803S150BG implements a synchronous, clock-driven architecture with registered address, data, and control inputs triggered on the rising CLK edge. Its internal burst counter advances on ADV=LOW and selects sequence order (linear vs. interleaved) based on static LBO state - no runtime reconfiguration permitted.
Write operations are self-timed and support four modes: global write (GW active), byte write (BWE + BW1/BW2), asynchronous OE-controlled output enable, and full-sleep mode via asynchronous ZZ HIGH. Deselection occurs in one clock cycle, enabling rapid bus turnaround in multi-master systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 512K × 18-bit (9Mbit); configured as 18-bit wide data bus - matches standard DSP and FPGA memory interfaces. |
| Clock Frequency / Access Time | 150MHz max, 3.8ns clock access time - enables sustained 600MB/s burst throughput (4×18-bit words/cycle). |
| Supply Voltages | VDD = 3.3V ±5%, VDDQ = 3.3V ±5%; separate core/I/O rails allow independent noise management and signal integrity optimization. |
| Power Consumption | ISB1 standby current ≤70mA (industrial temp); IZZ sleep current ≤70mA - critical for thermally constrained telecom modules. |
| Burst Mode Control | LBO pin selects linear or interleaved address sequence; static configuration - must be stable before initialization. |
| Write Enable Logic | GW (global) and BWE + BW1/BW2 (byte) inputs are synchronous; BW3/BW4 not implemented - verified in Pin Definitions Note 1. |
| Package | JEDEC-standard 100-pin TQFP (14mm × 20mm); compatible with automated SMT placement and IPC-7351 footprint guidelines. |
Pinout & Package
71V67803S150BG is packaged in a JEDEC-standard 100-pin thin quad flatpack (TQFP), 14mm × 20mm body, 0.5mm pitch. Pin 1 marked by corner notch; top-side marking includes "71V67803S150BG" and date code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus; A0/A1 advance during burst - determines word offset within 4-word burst sequence. |
| CE, CS0, CS1 | Chip Enable / Selects | Three-level decode: CE LOW + CS0 HIGH + CS1 LOW enables device; supports multi-chip memory banks. |
| GW, BWE, BW1, BW2 | Write Control Inputs | GW writes all 18 bits; BWE enables BW1/BW2; BW1 controls I/O0–I/O8/I/OP1, BW2 controls I/O9–I/O17/I/OP2 - no BW3/BW4 present. |
| CLK, ADV, ADSP, ADSC | Timing & Burst Control | CLK drives all registers; ADV=LOW advances burst counter; ADSP/ADSC load address register - dual-source address status support. |
| OE, ZZ, LBO | Output & Mode Control | OE (asynchronous) enables I/O drivers; ZZ=HIGH forces full sleep (IZZ ≤70mA); LBO sets burst order - must be static during operation. |
| I/O0–I/O17, I/OP1–I/OP2 | Data I/O | 18-bit bidirectional data bus + 2 parity bits; registered I/O paths ensure deterministic timing at 150MHz. |
| VDD, VDDQ, VSS | Power & Ground | VDD (core), VDDQ (I/O), and multiple VSS pins provide low-inductance return paths - essential for signal integrity at high speed. |
Key Features
| Feature | Design Value |
|---|---|
| Pipelined Outputs | First data word appears on next CLK rising edge after address setup - reduces read latency by one cycle versus non-pipelined SRAMs. |
| Single-Cycle Deselect | Device enters high-Z state within one CLK period upon CE/CS deassertion - eliminates bus contention in shared-memory architectures. |
| Self-Timed Write Cycle | Internal timing logic eliminates external write pulse generation - simplifies controller design and improves write reliability across voltage/temp. |
| Linear/Interleaved Burst Selection | LBO pin configures burst address sequence without firmware overhead - matches cache line layouts in x86 or PowerPC processors. |
| Industrial Temperature Range | –40°C to +85°C operation with guaranteed IDD ≤260mA (150MHz, industrial) - suitable for uncooled base station and industrial PLC applications. |
| Low-Power Sleep Mode | ZZ HIGH reduces supply current to ≤70mA while retaining data - enables power-gating in battery-backed or energy-sensitive systems. |
Applications
| Networking Line Card Buffer | DSP-Based Real-Time Signal Processing |
|---|---|
Use Scenario: High-throughput packet buffering in 10G Ethernet MAC layer, requiring zero-wait-state access and burst-aligned reads. IC Role / Device Role / Timing Role: Primary data buffer between SERDES PHY and traffic manager ASIC; provides pipelined 150MHz burst reads with single-cycle deselect. Use Value: Enables 600MB/s sustained bandwidth using only two 71V67803S150BG devices in parallel - avoids complex DDR interface design. |
Use Scenario: Co-processor memory for TI C6000 or Analog Devices SHARC DSPs executing FFT-based radar processing with strict latency budgets. IC Role / Device Role / Timing Role: Dual-port-accessible scratchpad memory; burst mode aligns with DSP's 4-word instruction fetch pattern. Use Value: Linear burst mode (LBO=LOW) delivers sequential 18-bit coefficients in lockstep with DSP pipeline - eliminates address calculation overhead. |
| FPGA-Based Protocol Accelerator | Industrial Motion Controller Memory |
Use Scenario: Offloading TCP/IP checksum and segmentation logic in Xilinx Kintex FPGA; requires deterministic 150MHz memory access with low jitter. IC Role / Device Role / Timing Role: Dedicated instruction/data RAM for soft-core Nios II or MicroBlaze; uses GW writes for fast context switching. Use Value: Self-timed write cycle ensures reliable data capture without FPGA logic managing write pulse width - reduces RTL complexity. |
Use Scenario: Position loop buffer in servo drive controllers operating in harsh factory environments (–40°C to +85°C). IC Role / Device Role / Timing Role: Real-time motion profile storage; ZZ sleep mode activated during idle periods to meet <1W thermal envelope. Use Value: Industrial-grade VDD/VDDQ tolerance (±5%) and IZZ ≤70mA guarantee stable operation despite 12V rail ripple and ambient temperature swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1371BV33-167AXC | 256K × 32-bit, 167MHz, 3.3V; supports QDR-II interface but lacks LBO-configurable burst order. | Higher bandwidth but wider bus - requires PCB redesign if replacing 18-bit interface; no linear/interleaved selection. | Select when system demands >600MB/s and can accommodate 32-bit data path; verify ADV/ADSP timing compatibility. |
| AS7C331024B-15JIN | 1M × 18-bit, 150MHz, 3.3V; uses standard asynchronous OE but no pipelined outputs or burst counter. | No burst addressing - each read requires new address setup; higher latency per 4-word transfer. | Choose for cost-sensitive designs where burst efficiency is secondary to density; confirm tOE ≤3.8ns meets timing budget. |
Compared with CY7C1371BV33-167AXC and AS7C331024B-15JIN, the 71V67803S150BG uniquely balances 150MHz burst throughput, industrial temperature support, and configurable linear/interleaved addressing - making it optimal for legacy-compatible, thermally constrained embedded systems requiring deterministic timing.
Availability
71V67803S150BG is available at Aetrix Electronics and suitable for networking line cards, DSP co-processors, FPGA protocol accelerators, and industrial motion controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 71V67803S150BG 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
IDT (Integrated Device Technology), now part of Renesas Electronics, specializes in high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.
The 71V67803S150BG belongs to IDT's 71V67xx family of synchronous SRAMs designed specifically for low-latency, burst-oriented applications in telecom infrastructure and real-time embedded systems.
FAQ
What memory organization does the 71V67803S150BG support?
The 71V67803S150BG is organized as 512K × 18-bit (9Mbit), delivering an 18-bit data bus width optimized for DSP and FPGA interfaces. It does not support the 256K × 36-bit configuration - that variant is implemented in the 71V67603. Pinout and timing parameters are specific to the 512K × 18 mode, as confirmed in Pin Configuration – 512K x 18, PKG100.
Does the 71V67803S150BG support BW3 and BW4 byte write enables?
No, the 71V67803S150BG does not support BW3 and BW4. Per Pin Definitions Note 1 in the official datasheet, "BW3 and BW4 are not applicable for the IDT71V67803." Only BW1 and BW2 are functional, controlling I/O0–I/O8/I/OP1 and I/O9–I/O17/I/OP2 respectively. This is reflected in both the 100-pin TQFP and BGA pinouts.
What is the role of the LBO pin on the 71V67803S150BG?
The LBO (Linear Burst Order) pin on the 71V67803S150BG statically selects burst address sequencing: LBO = LOW enables linear mode (00→01→10→11), while LBO = HIGH enables interleaved mode (00→01→11→10). As stated in Pin Definitions, LBO is a static input and must not change state during operation - it is sampled at initialization and defines the entire burst behavior.
How does sleep mode function on the 71V67803S150BG?
Sleep mode on the 71V67803S150BG is activated by driving ZZ HIGH asynchronously. This gates the internal CLK and reduces supply current to ≤70mA (industrial grade) while guaranteeing data retention. Per AC Electrical Characteristics Table 16, tZZR (recovery time) is 100ns - meaning full operation resumes within one clock cycle after ZZ returns LOW.
Is the 71V67803S150BG compatible with 166MHz operation?
No, the 71V67803S150BG is rated for 150MHz maximum operation (3.8ns access time), as indicated by the "S150" suffix and confirmed in Features and AC Electrical Characteristics tables. The 166MHz/3.5ns specification applies only to the 71V67603 and 71V67803 variants with "S166" suffix. Using 71V67803S150BG at 166MHz violates timing guarantees and may cause data corruption.
71V67803S150BG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 119-BGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Synchronous, SDR
- Memory Size:
- 9Mbit
- Memory Organization:
- 512K x 18
- Memory Interface:
- Parallel
- Clock Frequency:
- 150 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 3.8 ns
- Voltage - Supply:
- 3.135V ~ 3.465V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 119-PBGA (14x22)
71V67803S150BG FAQ
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6.How does Aetrix verify that 71V67803S150BG is sourced from the original manufacturer or authorized distributors?
All 71V67803S150BG 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 71V67803S150BG meets industry standards.
7.What is the process for return or replacement of 71V67803S150BG?
All 71V67803S150BG units undergo pre-shipment inspection (PSI). If there is an issue with 71V67803S150BG, 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 71V67803S150BG part is unused and in its original packaging.
Return procedure for 71V67803S150BG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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