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Infineon Technologies CY7C1021BNV33L-15BAIT
- Part No.:
- CY7C1021BNV33L-15BAIT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
CY7C1021BNV33L-15BAIT.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 48FBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,867
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Product details
Overview
CY7C1021BNV33L-15BAIT from Cypress Semiconductor is a 64K × 16 (1,048,576-bit) asynchronous CMOS static RAM operating at 3.3 V (3.0–3.6 V), with 15 ns access time (tAA), 160 mA max active current, and dual-byte enable (BHE/BLE) for independent upper/lower word access. It is used in industrial control systems requiring fast, low-power, non-volatile-critical data buffering with automatic CE-controlled power-down.
For engineers reviewing the CY7C1021BNV33L-15BAIT datasheet, CY7C1021BNV33L-15BAIT pinout, CY7C1021BNV33L-15BAIT application, or CY7C1021BNV33L-15BAIT equivalent, key selection criteria include 15 ns read access timing, TTL/CMOS-compatible input thresholds, 44-pin TSOP II and 48-ball mini BGA package options, byte-selectable I/O architecture, and industrial temperature range (–40 °C to +85 °C) operation.
Technical Context
This SRAM implements a fully asynchronous interface with independent Chip Enable (CE), Output Enable (OE), Write Enable (WE), Byte High Enable (BHE), and Byte Low Enable (BLE) controls. Read and write operations are initiated by specific combinations of these signals without clock dependency.
It features automatic CE-driven power-down mode reducing standby current to 500 µA (ISB2), dual 8-bit I/O buses (I/O0–I/O7 and I/O8–I/O15), and high-impedance output control during deselect, OE disable, or write cycles - enabling clean bus sharing in multi-device systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 64K × 16 (1 Mbit); supports 16-bit parallel data path with byte-level granularity |
| Access Time (tAA) | 15 ns; enables direct interfacing with 66 MHz microcontrollers without wait states |
| VCC Operating Range | 3.0 V–3.6 V; compatible with standard 3.3 V logic rails and tolerant of ±10% supply variation |
| Active Power Dissipation | 576 mW max; determined by 160 mA ICC at VCC = 3.6 V and fMAX = 66.7 MHz |
| Standby Current (ISB2) | 500 µA max; achieved when CE > VCC – 0.3 V and all inputs stable, enabling low-power hold mode |
| Operating Temperature | –40 °C to +85 °C; qualified for industrial-grade embedded systems with thermal cycling resilience |
| Input Thresholds (VIH/VIL) | VIH ≥ 2.2 V, VIL ≤ 0.8 V; ensures robust noise margin against 3.3 V TTL/CMOS logic families |
Pinout & Package
Available in 44-pin TSOP II (Type II, 400 mil width) and 48-ball mini BGA (6 mm × 8 mm, 0.8 mm pitch) packages. Pin functions are identical across both variants, with ball/pin numbering optimized for PCB layout density and signal integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Address Inputs | 16-bit address bus selecting one of 65,536 memory locations |
| I/O0–I/O7 | Data Bus (Lower Byte) | Bi-directional 8-bit data path enabled only when BLE = LOW during read/write |
| I/O8–I/O15 | Data Bus (Upper Byte) | Bi-directional 8-bit data path enabled only when BHE = LOW during read/write |
| CE | Chip Enable | Primary device select; HIGH forces outputs to high-Z and activates automatic power-down |
| OE | Output Enable | Controls output drivers; LOW enables data output only when CE = LOW and WE = HIGH |
| WE | Write Enable | Active-LOW write strobe; initiates write when CE = LOW and BHE/BLE = LOW |
| BLE / BHE | Byte Enable Controls | Independent gating of lower/upper data bytes; allows 8-bit access on 16-bit bus |
| VCC / VSS | Power / Ground | 3.3 V supply and reference ground; decoupling required per JEDEC TSOP/BGA guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Byte Select Architecture | Enables partial-word writes and reads via independent BLE/BHE control - eliminates need for external byte-masking logic |
| Automatic CE-Controlled Power-Down | Reduces standby current to 500 µA without external sequencing; triggered solely by CE deassertion |
| High-Speed 15 ns Access | Meets timing requirements of legacy 66 MHz PCI, DSP, and FPGA-based controllers without glue logic |
| Industrial Temperature Range | Validated operation from –40 °C to +85 °C; suitable for factory automation, motor drives, and outdoor telemetry |
| High-Impedance Output Control | Outputs enter high-Z state on CE HIGH, OE HIGH, BHE/BLE HIGH, or during write - prevents bus contention |
Applications
| Industrial PLC Data Buffering | Legacy Embedded Controller Cache |
|---|---|
Use Scenario: Real-time I/O scanning in programmable logic controllers where deterministic memory access is required between scan cycles. IC Role / Device Role / Timing Role: Asynchronous 16-bit SRAM buffer holding process image data; accessed directly by ARM9 or ColdFire MCU without wait-state insertion. Use Value: 15 ns tAA ensures sub-100 ns total read latency, enabling 10 kHz scan rates with guaranteed timing margins under worst-case voltage/temperature. | Use Scenario: Instruction/data cache for MIPS-based network processors in telecom access equipment with strict thermal constraints. IC Role / Device Role / Timing Role: Off-chip instruction RAM supporting boot code execution and small firmware overlays during runtime reconfiguration. Use Value: 500 µA ISB2 standby current minimizes idle power in always-on line cards; dual-byte enables efficient 32-bit instruction fetch alignment. |
| FPGA Configuration Memory | Medical Imaging Frame Buffer |
Use Scenario: Storing partial configuration bitstreams for dynamic reconfiguration of Xilinx Spartan-6 FPGAs in adaptive hardware accelerators. IC Role / Device Role / Timing Role: Fast-access external RAM holding bitstream segments loaded via parallel slave mode during partial reconfig cycles. Use Value: 15 ns tAA aligns with FPGA configuration clock limits; high-Z tri-state behavior prevents conflict during JTAG or SPI programming phases. | Use Scenario: Temporary storage of digitized ultrasound frames prior to compression and transmission in portable diagnostic devices. IC Role / Device Role / Timing Role: Dual-port-capable buffer (via time-multiplexed CE/OE control) accepting ADC data at 20 MSPS and feeding JPEG encoder at variable rate. Use Value: Independent BLE/BHE allows interleaved 8-bit pixel writes from two ADC channels, doubling effective throughput without external multiplexing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed 3.3 V SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AS6C1008-15TIN | 15 ns access, 64K × 16, but uses single-byte enable (UB/LB) instead of BHE/BLE; no automatic CE power-down | Lacks independent upper/lower byte control; requires external logic for byte masking in mixed-width systems | Preferred where cost sensitivity outweighs byte-select flexibility and ultra-low standby is not required |
| IS61LV102416-15TQLI | 15 ns access, same organization, but higher ICC (200 mA max) and no ISB2 spec - only ISB1 (40 mA) | Higher active power and less aggressive standby mode limit use in thermally constrained portable medical devices | Selected when board-level supply filtering already accommodates higher ripple, and CE power-down is managed externally |
Compared with AS6C1008-15TIN and IS61LV102416-15TQLI, CY7C1021BNV33L-15BAIT uniquely delivers byte-selectable I/O with true automatic CE-triggered sub-mA standby, making it optimal for industrial systems needing both timing precision and energy efficiency without added control logic.
Availability
CY7C1021BNV33L-15BAIT is available at Aetrix Electronics and suitable for industrial PLC data buffering, legacy embedded controller cache, FPGA configuration memory, and medical imaging frame buffer applications requiring stable component supply across extended product lifecycles.
Supply support for CY7C1021BNV33L-15BAIT 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 solutions for industrial, automotive, and communications markets, with emphasis on timing integrity and long-term supply stability.
The CY7C1021BNV33 series targets applications demanding fast, low-power, asynchronous SRAM with industrial temperature qualification and robust bus interface behavior - especially where byte-granular access and automatic power management reduce system-level complexity.
FAQ
What is the maximum clock frequency supported for read cycles?
This is an asynchronous SRAM with no internal clock. Its maximum effective interface speed is determined by tRC = 15 ns, corresponding to a theoretical maximum cycle rate of 66.7 MHz. System timing must satisfy setup/hold requirements for address, CE, OE, and BHE/BLE relative to each access - no clock signal is required or used.
Does CY7C1021BNV33L-15BAIT support battery backup for data retention?
Yes - in data retention mode (VCC ≥ 2.0 V, CE > VCC – 0.3 V), it maintains stored data with ICCDR ≤ 100 µA. This enables integration with coin-cell or supercapacitor backup circuits for non-volatile hold during main power loss, validated down to –40 °C.
Can I use only the lower byte (I/O0–I/O7) while leaving BHE floating?
No - BHE must be actively driven HIGH or LOW. Leaving it floating risks undefined behavior and potential bus contention. For lower-byte-only operation, tie BHE to VCC (HIGH) to disable upper byte, and drive BLE LOW as needed. All control inputs require defined logic levels per datasheet DC specifications.
Is the 48-ball mini BGA pinout compatible with the 44-pin TSOP II footprint?
No - they are mechanically and electrically incompatible packages. The 44-pin TSOP II uses gull-wing leads; the 48-ball mini BGA uses bottom-mounted solder balls with different pin count, spacing (0.8 mm vs. 0.8 mm pitch but different layout), and signal mapping (e.g., NC pins differ). PCB redesign is required for package substitution.
CY7C1021BNV33L-15BAIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 48-TFBGA
- 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:
- 15ns
- Access Time:
- 15 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-FBGA (7x7)
CY7C1021BNV33L-15BAIT FAQ
1.How can I place an order for CY7C1021BNV33L-15BAIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C1021BNV33L-15BAIT 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 CY7C1021BNV33L-15BAIT reliable?
The price and inventory of CY7C1021BNV33L-15BAIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C1021BNV33L-15BAIT is usually 5 days.
3.What payment methods are accepted for CY7C1021BNV33L-15BAIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C1021BNV33L-15BAIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C1021BNV33L-15BAIT?
CY7C1021BNV33L-15BAIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C1021BNV33L-15BAIT 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 CY7C1021BNV33L-15BAIT?
For technical support, including CY7C1021BNV33L-15BAIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C1021BNV33L-15BAIT requirements.
6.How does Aetrix verify that CY7C1021BNV33L-15BAIT is sourced from the original manufacturer or authorized distributors?
All CY7C1021BNV33L-15BAIT 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 CY7C1021BNV33L-15BAIT meets industry standards.
7.What is the process for return or replacement of CY7C1021BNV33L-15BAIT?
All CY7C1021BNV33L-15BAIT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C1021BNV33L-15BAIT, 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 CY7C1021BNV33L-15BAIT part is unused and in its original packaging.
Return procedure for CY7C1021BNV33L-15BAIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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