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Infineon Technologies CY7C1021CV33-8VXC
- Part No.:
- CY7C1021CV33-8VXC
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 44-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
CY7C1021CV33-8VXC.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 44SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:2,021
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Product details
Overview
CY7C1021CV33-8VXC from Cypress Semiconductor is a 1-Mbit (64K × 16) high-speed CMOS static RAM with 8 ns access time, 3.3 V supply, and automatic CE-controlled power-down mode. It supports independent byte write via BHE/ BLE control lines and operates across industrial temperature range (–40°C to +85°C). Used in real-time data buffering for industrial PLCs, network packet processors, and FPGA co-processor memory interfaces.
For engineers reviewing the CY7C1021CV33-8VXC datasheet, CY7C1021CV33-8VXC pinout, CY7C1021CV33-8VXC application, or CY7C1021CV33-8VXC equivalent, key selection criteria include tAA ≤ 8 ns, dual-byte enable timing, CMOS-compatible 3.3 V I/O, low active power (≤325 mW), and SOJ/TSOP II package compatibility with legacy SRAM footprints.
Technical Context
The CY7C1021CV33-8VXC implements a fully asynchronous 64K × 16-bit RAM array with separate byte-write control logic for IO1–IO8 (BLE) and IO9–IO16 (BHE), enabling partial-word writes without read-modify-write cycles. Its CE-driven automatic power-down reduces ISB2 standby current to 5 mA under CMOS input conditions.
Timing is defined by overlapping active-low control signals: CE and WE initiate writes; CE and OE (with WE HIGH) enable reads. Output enable (OE) and byte enables (BHE/BLE) independently gate data bus direction and validity, supporting mixed-width memory subsystems in microcontroller-based systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 64K × 16-bit (1 Mbit total); supports full-word or half-word access without external logic |
| Access Time (tAA) | 8 ns max at 3.3 V, –40°C to +85°C; enables direct interfacing with 100 MHz bus clocks |
| VCC Supply | 3.3 V ±10%; compatible with standard LVTTL and LVCMOS I/O domains |
| Active Current (ICC) | 95 mA max at fMAX = 125 MHz; defines thermal budget for dense PCB layouts |
| Standby Current (ISB2) | 5 mA max (CMOS inputs); enables low-power hold mode during processor sleep states |
| Byte Write Control | Dedicated BHE/BLE pins allow independent 8-bit writes to upper/lower data bytes |
| Output Drive | IOH = –4 mA / IOL = 8 mA at VOH/VOL specs; ensures noise margin with 50 Ω trace termination |
Pinout & Package
Package: 44-pin 400-mil SOJ (Small Outline J-Lead) - leaded, surface-mount, JEDEC MS-024 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Address Input | 16-bit address bus; selects one of 65,536 memory locations |
| IO1–IO16 | Bidirectional Data I/O | 16-bit data bus; tri-stated when CE HIGH, OE HIGH, or BHE/BLE HIGH |
| CE | Chip Enable (Active LOW) | Primary device select; triggers automatic power-down when HIGH |
| WE | Write Enable (Active LOW) | Controls write cycle initiation; must be LOW with CE LOW to write |
| OE | Output Enable (Active LOW) | Enables output drivers; HIGH forces IO pins into high-impedance state |
| BHE, BLE | Byte High/Low Enable (Active LOW) | Selects upper (IO9–IO16) or lower (IO1–IO8) byte for write/read operations |
| VCC | Power Supply | 3.3 V core and I/O supply; two dedicated pins reduce IR drop and noise coupling |
| VSS | Ground | Two ground pins provide return path separation for analog-sensitive read paths |
Key Features
| Feature | Design Value |
|---|---|
| Automatic CE Power-Down | Reduces ICC to 5 mA (ISB2) without external control logic or clock gating |
| Dual-Byte Write Architecture | Eliminates need for external byte-mask logic in 8-bit peripheral interfaces |
| High-Speed 8 ns Access | Meets timing closure for 100 MHz synchronous bus designs without wait states |
| Industrial Temperature Range | Guaranteed operation from –40°C to +85°C without derating or thermal throttling |
| Pb-Free & RoHS Compliant | Meets EU Directive 2011/65/EU; compatible with lead-free reflow profiles (peak 260°C) |
Applications
| Industrial PLC Data Buffering | FPGA Co-Processor Memory |
|---|---|
|
Use Scenario: Real-time I/O scan cycle in programmable logic controllers requiring deterministic 8 ns memory access for status register updates. IC Role / Device Role / Timing Role: Asynchronous data buffer between ARM Cortex-M7 CPU and field I/O modules; provides zero-wait-state access during cyclic scan execution. Use Value: Enables sub-10 µs I/O update latency with guaranteed tAA ≤ 8 ns and no refresh overhead-critical for motion control loop timing. |
Use Scenario: Local instruction/data storage for Xilinx Artix-7 FPGA soft-core processors handling protocol stack offload. IC Role / Device Role / Timing Role: Dual-port accessible SRAM used as tightly coupled memory (TCM) for RISC-V core; BHE/BLE enables byte-aligned DMA transfers from Ethernet MAC. Use Value: Eliminates external multiplexers for 8-bit peripheral writes, reducing PCB layer count and signal integrity risk in high-density FPGA carrier boards. |
| Network Packet Processor Cache | Automotive ADAS Sensor Hub |
|
Use Scenario: Temporary frame buffering in 1 Gbps packet inspection engines where bursty traffic demands fast random-access storage. IC Role / Device Role / Timing Role: Low-latency scratchpad memory for Broadcom BCM58xx NPU; CE-driven power-down cuts idle power by 95% between packet bursts. Use Value: Achieves 125 MHz effective throughput (tRC = 8 ns) while maintaining <5 mA standby draw-extending thermal headroom in fanless chassis. |
Use Scenario: Sensor fusion buffer in Tier-1 automotive camera ECU aggregating raw image streams from multiple MIPI-CSI2 receivers. IC Role / Device Role / Timing Role: Industrial-grade SRAM storing timestamped pixel metadata before GPU preprocessing; qualified for AEC-Q100 Grade 2 (–40°C to +105°C). Use Value: Supports concurrent 8-bit sensor register writes (via BLE) and 16-bit frame header reads (via OE), simplifying timing-critical sensor synchronization logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61LV102416AL-8MLI | 8 ns access, same 64K × 16 organization, but uses 44-pin TSOP II; higher ISB2 (10 mA) and no BHE/BLE split control | Lacks independent byte write; requires external gating for 8-bit peripheral interface | Preferred only when board layout mandates TSOP II footprint and byte masking is handled in FPGA logic |
| AS6C1008-8TIN | 8 ns access, 128K × 8 organization; single-byte interface; 2.7–3.6 V supply range; no CE power-down feature | Requires two devices for 16-bit width; no automatic standby reduction | Suitable only for cost-sensitive consumer designs where power budget >100 mA and board space allows dual-SRAM placement |
Compared with IS61LV102416AL-8MLI and AS6C1008-8TIN, the CY7C1021CV33-8VXC uniquely delivers true 16-bit width with per-byte write control and sub-5 mA standby-making it optimal for industrial and automotive systems requiring deterministic timing and thermal efficiency in single-chip memory solutions.
Availability
CY7C1021CV33-8VXC is available at Aetrix Electronics and suitable for industrial PLCs, FPGA-based edge accelerators, network packet processors, and automotive ADAS sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY7C1021CV33-8VXC 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-reliability memory and programmable system-on-chip solutions for industrial, automotive, and communications markets.
The CY7C1021CV33 belongs to Cypress's high-speed asynchronous SRAM product line, engineered specifically for deterministic, low-latency data buffering in real-time embedded systems where refresh-free operation and precise timing control are mandatory.
FAQ
What is the maximum operating frequency supported by CY7C1021CV33-8VXC?
The device does not operate on a clock signal-it is fully asynchronous. Its maximum effective throughput is determined by tRC = 8 ns, enabling up to 125 million random accesses per second. System-level timing depends on controller setup/hold margins relative to CE, WE, OE, and address transitions-not a fixed clock frequency.
Can CY7C1021CV33-8VXC interface directly with 5 V logic systems?
No. The CY7C1021CV33-8VXC is a 3.3 V-only device with VIH = 2.0 V minimum and VIL = 0.8 V maximum. Direct connection to 5 V TTL or CMOS outputs violates absolute maximum ratings and risks latch-up. Level-shifting circuitry or 3.3 V–compatible controllers are required.
Does the automatic power-down feature require external circuitry to activate?
No. Automatic power-down activates solely when CE is driven HIGH under valid voltage and temperature conditions. No external timer, clock, or control signal is needed-the internal circuitry reduces ICC to ISB2 (5 mA) within tPD = 8 ns, as specified in the datasheet switching characteristics table.
Is the 44-pin SOJ package of CY7C1021CV33-8VXC pin-compatible with CY7C1021BV33?
Yes. The CY7C1021CV33-8VXC is explicitly stated in its datasheet to be pin- and function-compatible with CY7C1021BV33, including identical pin numbering, signal assignments, and DC/AC electrical behavior-enabling drop-in replacement in existing SOJ-based designs without layout changes.
CY7C1021CV33-8VXC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 44-BSOJ (0.400", 10.16mm Width)
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Asynchronous
- Memory Size:
- 1Mbit
- Memory Organization:
- 64K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 8ns
- Access Time:
- 8 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-SOJ
CY7C1021CV33-8VXC FAQ
1.How can I place an order for CY7C1021CV33-8VXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C1021CV33-8VXC 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 CY7C1021CV33-8VXC reliable?
The price and inventory of CY7C1021CV33-8VXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C1021CV33-8VXC is usually 5 days.
3.What payment methods are accepted for CY7C1021CV33-8VXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C1021CV33-8VXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C1021CV33-8VXC?
CY7C1021CV33-8VXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C1021CV33-8VXC 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 CY7C1021CV33-8VXC?
For technical support, including CY7C1021CV33-8VXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C1021CV33-8VXC requirements.
6.How does Aetrix verify that CY7C1021CV33-8VXC is sourced from the original manufacturer or authorized distributors?
All CY7C1021CV33-8VXC 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 CY7C1021CV33-8VXC meets industry standards.
7.What is the process for return or replacement of CY7C1021CV33-8VXC?
All CY7C1021CV33-8VXC units undergo pre-shipment inspection (PSI). If there is an issue with CY7C1021CV33-8VXC, 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 CY7C1021CV33-8VXC part is unused and in its original packaging.
Return procedure for CY7C1021CV33-8VXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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