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Infineon Technologies CY7C1021CV33-8VXCT
- Part No.:
- CY7C1021CV33-8VXCT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 44-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
CY7C1021CV33-8VXCT.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 44SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:4,569
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Product details
Overview
CY7C1021CV33-8VXCT from Cypress Semiconductor is a 1-Mbit (64K × 16) high-speed CMOS static RAM with 8 ns access time, 3.3 V supply, and independent byte enable control for upper/lower 8-bit data lanes. It features automatic CE-controlled power-down (5 mA standby), TTL/CMOS-compatible inputs, and operates across industrial temperature range (–40°C to +85°C). Used in real-time embedded controllers requiring deterministic low-latency memory access.
For engineers reviewing the CY7C1021CV33-8VXCT datasheet, CY7C1021CV33-8VXCT pinout, CY7C1021CV33-8VXCT application, or CY7C1021CV33-8VXCT equivalent, key selection criteria include tAA ≤ 8 ns read timing, dual-byte write enable (BHE/BLE), SOJ-44 package compatibility, and automotive-grade thermal derating support up to 85°C ambient.
Technical Context
This SRAM implements a synchronous, non-volatile-independent architecture with fully decoded 16-bit bidirectional I/O (IO1–IO16), 16-bit address bus (A0–A15), and four active-low control signals: CE, WE, OE, BHE, and BLE. All control inputs meet TTL voltage thresholds and support mixed-signal interfacing with microcontrollers and FPGAs.
Its automatic power-down logic asserts ISB2 = 5 mA (max) when CE remains HIGH and all inputs are stable at valid logic levels. Output drive strength is specified at VOH ≥ 2.4 V (IOH = –4 mA) and VOL ≤ 0.4 V (IOL = 8 mA), ensuring robust noise margin in 3.3 V systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 64K × 16-bit (1,048,576 bits); supports full-word parallel access without banking or interleaving. |
| Access Time (tAA) | 8 ns max (Commercial/Industrial); guarantees sub-125 MHz bus interface timing with zero wait states. |
| Supply Voltage | 3.3 V ±10%; compatible with standard LVTTL and LVCMOS I/O domains without level translation. |
| Standby Current (ISB2) | 5 mA max (CMOS input mode); enables ultra-low-power sleep modes in portable or battery-backed systems. |
| Operating Temperature | –40°C to +85°C; validated for industrial control, motor drives, and telecom line cards. |
| Output Drive | VOL ≤ 0.4 V @ 8 mA; ensures reliable logic LOW under capacitive loads up to 30 pF per pin. |
| Input Leakage | ±1 µA max (TA = 25°C); minimizes current draw on high-impedance address/data buses. |
Pinout & Package
Package: 44-pin 400-mil SOJ (Small Outline J-Lead), JEDEC MS-024AC compliant. Body size 483 × 190 mil, lead pitch 1.27 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Address Input | 16-bit binary address bus; selects one of 65,536 memory locations unambiguously. |
| IO1–IO8 | Data I/O (Lower Byte) | Bidirectional 8-bit data path enabled by BLE; isolated from upper byte during partial writes. |
| IO9–IO16 | Data I/O (Upper Byte) | Bidirectional 8-bit data path enabled by BHE; allows independent 8-bit updates without disturbing lower byte. |
| CE | Chip Enable | Active-low global select; disables outputs and triggers automatic power-down when HIGH. |
| WE | Write Enable | Active-low write strobe; initiates write cycle only when CE and corresponding byte enable are also LOW. |
| OE | Output Enable | Active-low output gate; places IO pins in high-Z state when HIGH, enabling bus sharing. |
| BHE / BLE | Byte Enable | Independent active-low controls for upper/lower data bytes; enables true 8-bit granularity writes. |
| VCC | Power Supply | 3.3 V core and I/O supply; two dedicated pins reduce IR drop and improve noise immunity. |
| VSS | Ground | Signal and power ground reference; two pins ensure low-impedance return path for switching currents. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-byte write enable (BHE/BLE) | Enables atomic 8-bit updates to either half of the 16-bit word without read-modify-write overhead. |
| Automatic CE power-down | Reduces ICC to 5 mA (max) when chip is deselected-no external logic or software intervention required. |
| 8 ns access time (tAA) | Supports direct connection to 100 MHz microcontroller buses with no wait-state insertion. |
| TTL/CMOS input compatibility | VIH = 2.0 V min and VIL = 0.8 V max allow seamless interfacing with legacy 5 V logic and modern 3.3 V FPGAs. |
| SOJ-44 package with Pb-free option | Industry-standard footprint enables drop-in replacement in existing industrial PCB layouts; RoHS-compliant. |
Applications
| Industrial PLC Data Buffers | Automotive Engine Control Units |
|---|---|
|
Use Scenario: Real-time I/O mapping and register shadowing in programmable logic controllers with deterministic scan cycles. IC Role / Device Role / Timing Role: High-speed scratchpad memory for transient process variables, updated every 10 ms with guaranteed 8 ns read latency. Use Value: Eliminates bus arbitration delays during cyclic data exchange between CPU and fieldbus peripherals. |
Use Scenario: Storing calibrated sensor lookup tables and intermediate PID computation results in ECU mainboards. IC Role / Device Role / Timing Role: Non-blocking 16-bit memory resource accessed concurrently by dual-core safety monitors and main application core. Use Value: Enables simultaneous read/write to upper/lower bytes-critical for fault-tolerant dual-channel sensor fusion. |
| Telecom Line Card Frame Buffers | Medical Imaging Signal Processing |
|
Use Scenario: Temporary storage of TDM frame payloads in packet voice gateways before DSP-based compression. IC Role / Device Role / Timing Role: Low-jitter buffer decoupling bursty Ethernet ingress from synchronous T1/E1 timing domains. Use Value: 8 ns tAA ensures zero-cycle latency handoff between MAC layer and framer ASIC-preserving jitter budgets. |
Use Scenario: On-board pixel pipeline buffering in portable ultrasound devices where power and latency are tightly constrained. IC Role / Device Role / Timing Role: Dual-port-capable SRAM used as ping-pong buffer for real-time beamforming coefficient updates. Use Value: Independent BHE/BLE control allows concurrent coefficient loading (upper byte) and sample streaming (lower byte). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed parallel SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AS6C1008-8TIN | 8 ns access, 128K × 8 organization; single-byte interface; no BHE/BLE; 5 V tolerant inputs. | Lacks byte-select capability; requires external multiplexing for 16-bit word alignment. | Choose if system uses 8-bit data paths or needs 5 V interface compatibility. |
| IS61LV102416-8ML | 8 ns access, identical 64K × 16 organization; 3.3 V only; TSOP-II package; higher ICC (100 mA active). | Same pinout but different package footprint; no automotive qualification; higher active power. | Choose for cost-sensitive consumer designs where AEC-Q100 compliance is not required. |
Compared with AS6C1008-8TIN and IS61LV102416-8ML, CY7C1021CV33-8VXCT uniquely delivers industrial-temperature-rated dual-byte control in SOJ-44, enabling deterministic partial-word writes without external glue logic or voltage translation.
Availability
CY7C1021CV33-8VXCT is available at Aetrix Electronics and suitable for industrial PLCs, automotive ECUs, telecom line cards, and medical imaging subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY7C1021CV33-8VXCT 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) is a fabless semiconductor company specializing in high-performance memory, PSoC, and USB solutions for industrial, automotive, and communications markets.
CY7C1021CV33 belongs to Cypress's parallel SRAM product line, engineered for deterministic low-latency data buffering in real-time embedded systems where predictability outweighs density or serial interface flexibility.
FAQ
What is the maximum operating frequency supported by CY7C1021CV33-8VXCT?
The device does not specify a clock frequency but supports read cycles as fast as 125 MHz (tRC = 8 ns). Its asynchronous interface relies on setup/hold timing rather than a clock signal, making it compatible with microcontrollers and ASICs running at up to 100 MHz bus speeds without wait states.
Can CY7C1021CV33-8VXCT operate with 2.5 V supply?
No. The device is strictly rated for 3.3 V ±10% (2.97 V to 3.63 V). Operation outside this range violates Absolute Maximum Ratings and may cause data corruption, excessive leakage, or permanent damage. No 2.5 V operation is specified or guaranteed.
Is the SOJ-44 package of CY7C1021CV33-8VXCT RoHS-compliant?
Yes. The "-8VXCT" suffix denotes a Pb-free, RoHS-compliant 44-pin SOJ package with matte tin lead finish, qualified to JEDEC J-STD-020 moisture sensitivity level 3 and reflow profile J-STD-020D.
Does CY7C1021CV33-8VXCT require an external refresh circuit?
No. As a static RAM, it retains data indefinitely while powered and selected, with no refresh cycles needed. Data persistence depends solely on maintaining VCC within specification and asserting CE LOW during active use-no timer or controller overhead is required.
CY7C1021CV33-8VXCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 44-BSOJ (0.400", 10.16mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
CY7C1021CV33-8VXCT FAQ
1.How can I place an order for CY7C1021CV33-8VXCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C1021CV33-8VXCT 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 CY7C1021CV33-8VXCT reliable?
The price and inventory of CY7C1021CV33-8VXCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C1021CV33-8VXCT is usually 5 days.
3.What payment methods are accepted for CY7C1021CV33-8VXCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C1021CV33-8VXCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C1021CV33-8VXCT?
CY7C1021CV33-8VXCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C1021CV33-8VXCT 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 CY7C1021CV33-8VXCT?
For technical support, including CY7C1021CV33-8VXCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C1021CV33-8VXCT requirements.
6.How does Aetrix verify that CY7C1021CV33-8VXCT is sourced from the original manufacturer or authorized distributors?
All CY7C1021CV33-8VXCT 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 CY7C1021CV33-8VXCT meets industry standards.
7.What is the process for return or replacement of CY7C1021CV33-8VXCT?
All CY7C1021CV33-8VXCT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C1021CV33-8VXCT, 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 CY7C1021CV33-8VXCT part is unused and in its original packaging.
Return procedure for CY7C1021CV33-8VXCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY7C1021CV33-8VXCT Tags
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