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Infineon Technologies CY7C1371KV33-100AXI
- Part No.:
- CY7C1371KV33-100AXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
CY7C1371KV33-100AXI.pdf
- Description:
- IC SRAM 18MBIT PAR 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,601
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Product details
Overview
CY7C1371KV33-100AXI from Cypress Semiconductor is a 18-Mbit synchronous flow-through SRAM with NoBL™ architecture and on-chip ECC, configured as 512K × 36 or 1M × 18. It supports 100 MHz bus operation (8.5 ns access), delivers zero wait-state back-to-back read/write cycles, and features registered inputs, byte write capability, and three chip enables for depth expansion. Used in high-throughput packet buffering and network switch data planes.
For engineers reviewing the CY7C1371KV33-100AXI datasheet, CY7C1371KV33-100AXI pinout, CY7C1371KV33-100AXI application, or CY7C1371KV33-100AXI equivalent, key selection criteria include synchronous burst timing, ECC-enabled soft error resilience, TQFP-100 package compatibility, and NoBL™-enabled true back-to-back throughput in telecom and storage controller designs.
Technical Context
The device implements a synchronous flow-through architecture with clock-qualified inputs (CLK/CEN), internally self-timed output buffers eliminating OE dependency for reads, and synchronous self-timed write circuitry. Burst order (linear/interleaved) is selected via MODE strap pin, and address advancement is controlled by ADV/LD.
All inputs are registered on the rising edge of CLK; write operations require WE and active BWA–BWD signals; output drivers are synchronously tristated during write data phases. Sleep mode is entered via asynchronous ZZ pin, preserving data integrity while reducing standby power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 18 Mbit (512K × 36 or 1M × 18 configuration) |
| Max Clock Frequency | 100 MHz - enables sustained 100 MT/s throughput with no dead cycles |
| Access Time (tAC) | 8.5 ns - defines maximum clock-to-output delay for timing-critical control paths |
| ECC Support | On-chip Error Correction Code - detects and corrects single-bit errors to reduce SER in radiation-prone environments |
| I/O Voltage | 3.3 V VDDQ - compatible with LVTTL/CMOS 3.3 V system interfaces |
| Package | 100-pin TQFP (14 × 20 × 1.4 mm) - JEDEC-standard Pb-free, suitable for automated SMT assembly |
| Power Management | ZZ sleep mode with asynchronous entry - reduces standby current without clock gating complexity |
Pinout & Package
Package: 100-pin TQFP (14 mm × 20 mm × 1.4 mm), RoHS-compliant, with exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Input | Synchronous inputs sampled on CLK rising edge; A[1:0] drive internal 2-bit burst counter |
| BWA–BWD | Byte Write Enable | Active-low synchronous signals qualifying WE to enable 8-bit granularity writes per DQ group |
| CE1, CE2, CE3 | Chip Enable | Three synchronous enables (CE1/CE3 active low, CE2 active high) for bank selection and depth expansion |
| CLK, CEN | Clock Interface | CLK qualified by CEN; CEN deassertion extends previous cycle without deselection |
| DQPA–DQPD | Data Parity I/O | Four parity bits (one per 9-bit DQ byte) supporting ECC encoding/decoding |
| OE | Output Enable | Asynchronous, masked during write data phase - ensures no bus contention |
| ZZ | Sleep Control | Asynchronous active-high input placing device in low-power sleep with data retention |
Key Features
| Feature | Design Value |
|---|---|
| No Bus Latency (NoBL™) Architecture | Eliminates dead cycles between consecutive read/write operations - enables 100% bus utilization at 100 MHz |
| Registered Inputs with Flow-Through Timing | All address/data/control inputs registered on CLK rising edge - simplifies timing closure in FPGA-attached systems |
| On-Chip ECC | Single-bit error correction and double-bit error detection - meets telecom reliability requirements without external logic |
| Flexible Burst Modes | Linear or interleaved burst order selectable via MODE pin - matches CPU or ASIC memory controller addressing patterns |
| Three Chip Enables + Byte Write | Supports seamless 36-bit depth expansion and partial-word writes - reduces glue logic in multi-bank buffer designs |
Applications
| Network Packet Buffering | Storage Controller Cache |
|---|---|
|
Use Scenario: Temporary storage of variable-length Ethernet frames in Layer 2 switches before forwarding decisions. IC Role / Device Role / Timing Role: High-speed, low-latency SRAM acting as first-level frame buffer with ECC protection against cosmic-ray-induced bit flips. Use Value: NoBL™ architecture sustains 100 MT/s back-to-back writes/reads across burst boundaries, eliminating pipeline stalls during traffic bursts. |
Use Scenario: Write-back cache for SATA/SAS host bus adapters managing concurrent I/O requests from multiple drives. IC Role / Device Role / Timing Role: Synchronous burst SRAM interfacing directly with ARM Cortex-A9-based SoC memory controller via 36-bit bus. Use Value: Byte-write capability and three CE pins allow efficient partitioning into independent cache segments without external decode logic. |
| Telecom Line Card Buffering | Radar Signal Processing FIFO |
|
Use Scenario: Jitter attenuation and payload reassembly in TDM-over-Packet gateways handling E1/T1 streams. IC Role / Device Role / Timing Role: Dual-port-configurable SRAM used as elastic store with deterministic 8.5 ns access for clock domain crossing. Use Value: ZZ sleep mode reduces idle power by >70% during low-traffic intervals while preserving buffered data integrity. |
Use Scenario: Real-time buffering of ADC samples from phased-array radar receivers prior to FFT processing. IC Role / Device Role / Timing Role: Flow-through SRAM synchronized to 100 MHz sampling clock, delivering continuous data stream with zero wait states. Use Value: On-chip ECC mitigates soft errors induced by neutron flux in airborne avionics environments per DO-254/ED-80. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous burst SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61WV102436BLL-100TQLI | No on-chip ECC; 100 MHz, 18-Mbit, 100-pin TQFP; uses standard ZBT™ timing | Lacks SER mitigation - unsuitable for aerospace or high-reliability telecom deployments | Select when ECC is handled externally or not required; lower cost, identical pinout |
| MT28EW128ABA1HPC-0SIT | Quad SPI NOR Flash with SRAM-like interface; 128-Mbit density; no true synchronous burst mode | Non-volatile storage with slower random access (tRC = 12 ns); no byte-write or NoBL™ behavior | Choose only for code storage with execute-in-place; not a functional replacement for high-throughput buffering |
Compared with IS61WV102436BLL-100TQLI and MT28EW128ABA1HPC-0SIT, CY7C1371KV33-100AXI uniquely combines NoBL™ zero-wait-state throughput, integrated ECC, and synchronous flow-through operation - making it irreplaceable where deterministic latency and radiation-hardened reliability are mandatory.
Availability
CY7C1371KV33-100AXI is available at Aetrix Electronics and suitable for network packet buffering, storage controller cache, and telecom line card buffering requiring stable component supply and long-term industrial availability.
Supply support for CY7C1371KV33-100AXI 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
Cypress Semiconductor (now part of Infineon Technologies) designs high-performance memory and programmable solutions for automotive, industrial, and communications markets.
CY7C1371KV33 belongs to Cypress's NoBL™ SRAM product line, engineered specifically for systems demanding uninterrupted data flow, such as packet-switched networks and real-time signal processing subsystems.
FAQ
What is the function of the MODE pin on CY7C1371KV33-100AXI?
The MODE pin selects burst addressing order: tied to GND for linear burst sequence (e.g., 0x0000 → 0x0001 → 0x0002), or to VDD/floating for interleaved burst (e.g., 0x0000 → 0x0002 → 0x0001). This setting is sampled at power-up and remains static during operation; no dynamic reconfiguration is supported.
How does the ZZ sleep mode affect data retention and wake-up timing?
When ZZ is driven HIGH, the device enters non-time-critical sleep mode with full data retention and reduced ICC. Wake-up is asynchronous and complete within tZZMAX = 20 ns after ZZ returns LOW; no additional clock cycles or initialization sequence is required before resuming normal operation.
Can CY7C1371KV33-100AXI operate with 2.5 V I/O voltage?
No. The device requires 3.3 V on VDDQ for I/O operation; it does not support 2.5 V VDDQ. While some earlier variants (e.g., CY7C1371KVE33) specify dual 3.3 V/2.5 V VDDQ capability, the -100AXI suffix denotes the 3.3 V-only version per Cypress datasheet revision *F.
Is the CY7C1371KV33-100AXI pin-compatible with ZBT™ SRAMs?
Yes - it is pin-compatible and functionally equivalent to industry-standard ZBT™ SRAMs (e.g., IDT 72V255) in 100-pin TQFP package, including identical pin assignments for address, data, control, and power. However, NoBL™ eliminates the need for OE control in read cycles, simplifying interface logic.
CY7C1371KV33-100AXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- NoBL™
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Synchronous, SDR
- Memory Size:
- 18Mbit
- Memory Organization:
- 512K x 36
- Memory Interface:
- Parallel
- Clock Frequency:
- 100 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 8.5 ns
- Voltage - Supply:
- 3.135V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x20)
CY7C1371KV33-100AXI FAQ
1.How can I place an order for CY7C1371KV33-100AXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C1371KV33-100AXI 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 CY7C1371KV33-100AXI reliable?
The price and inventory of CY7C1371KV33-100AXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C1371KV33-100AXI is usually 5 days.
3.What payment methods are accepted for CY7C1371KV33-100AXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C1371KV33-100AXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C1371KV33-100AXI?
CY7C1371KV33-100AXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C1371KV33-100AXI 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 CY7C1371KV33-100AXI?
For technical support, including CY7C1371KV33-100AXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C1371KV33-100AXI requirements.
6.How does Aetrix verify that CY7C1371KV33-100AXI is sourced from the original manufacturer or authorized distributors?
All CY7C1371KV33-100AXI 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 CY7C1371KV33-100AXI meets industry standards.
7.What is the process for return or replacement of CY7C1371KV33-100AXI?
All CY7C1371KV33-100AXI units undergo pre-shipment inspection (PSI). If there is an issue with CY7C1371KV33-100AXI, 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 CY7C1371KV33-100AXI part is unused and in its original packaging.
Return procedure for CY7C1371KV33-100AXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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