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Infineon Technologies CY7C1020BN-15ZXCT
- Part No.:
- CY7C1020BN-15ZXCT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
CY7C1020BN-15ZXCT.pdf
- Description:
- IC SRAM 512KBIT PAR 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:2,153
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Product details
Overview
CY7C1020BN-15ZXCT from Cypress Semiconductor is a 32K × 16-bit (512 Kbit) high-speed CMOS static RAM with 15 ns access time, 5 V supply, and automatic CE-controlled power-down. It supports independent byte-wide write enable via BHE/BLE pins and operates across commercial temperature range (0°C to +70°C) in a 44-pin TSOP II package. Used in legacy embedded controllers and FPGA configuration buffers requiring deterministic low-latency read/write.
For engineers reviewing the CY7C1020BN-15ZXCT datasheet, CY7C1020BN-15ZXCT pinout, CY7C1020BN-15ZXCT application, or CY7C1020BN-15ZXCT equivalent, key selection criteria include tAA = 15 ns access time, ISB2 = 0.5 mA CMOS standby current, dual-byte control architecture, and TSOP II mechanical compatibility with board-level space constraints.
Technical Context
The CY7C1020BN-15ZXCT implements a fully static 32,768 × 16-bit memory array with asynchronous parallel interface. Its read cycle is initiated by concurrent CE and OE assertion while WE remains HIGH, with data valid after tACE = 15 ns and tDOE = 7 ns. Byte-select logic allows simultaneous or independent access to upper (I/O9–I/O16) and lower (I/O1–I/O8) data lanes using dedicated BHE and BLE inputs.
Power management relies on automatic CE-driven transition into low-power standby (ISB2 ≤ 0.5 mA) when CE is deasserted, eliminating need for external power sequencing. Input thresholds comply with TTL/CMOS-compatible levels (VIH ≥ 2.2 V, VIL ≤ 0.8 V), and output drive meets ±4 mA VOH/VOL specs under full load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 32,768 words × 16 bits = 512 Kbit; enables single-cycle 16-bit data transfers without multiplexing. |
| Access Time (tAA) | 15 ns max; guarantees deterministic read latency for real-time control loops and FPGA boot loaders. |
| VCC Supply | 5.0 V ±10%; compatible with legacy 5 V logic families and eliminates level-shifting requirements. |
| Standby Current (ISB2) | 0.5 mA max at VCC = 5.5 V; reduces system idle power in battery-backed or energy-sensitive applications. |
| Operating Temperature | 0°C to +70°C; validated for commercial-grade industrial control panels and test equipment. |
| Package | 44-pin TSOP Type II (JEDEC MO-141BA); 0.8 mm pitch, 10.16 mm × 18.42 mm footprint for high-density PCB layouts. |
| Byte Enable Logic | Dual independent BHE/BLE inputs allow selective 8-bit writes without disturbing adjacent bytes-critical for protocol register mapping. |
Pinout & Package
Package: 44-pin TSOP Type II (JEDEC MO-141BA), lead-free (Pb-free), body dimensions 10.16 mm × 18.42 mm, 0.8 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Address Inputs | 16-bit address bus supporting full 32K-word addressing; no internal latching-requires stable address during CE assertion. |
| I/O1–I/O8 | Data I/O (Lower Byte) | Bidirectional 8-bit data path enabled only when BLE = LOW; high-impedance when BLE or CE is HIGH. |
| I/O9–I/O16 | Data I/O (Upper Byte) | Bidirectional 8-bit data path enabled only when BHE = LOW; electrically isolated from lower byte during partial writes. |
| CE | Chip Enable | Primary device select; drives automatic power-down when HIGH, enabling zero-software-overhead sleep mode. |
| OE | Output Enable | Read strobe; must be LOW with CE LOW and WE HIGH to place data on I/O pins-no effect during write cycles. |
| WE | Write Enable | Active-LOW write control; initiates write when CE and WE are both LOW, regardless of OE state. |
| BLE / BHE | Byte Low/High Enable | Independent 8-bit write gating-allows atomic updates to either byte lane without read-modify-write overhead. |
| VCC / VSS | Power / Ground | Single 5 V supply with two dedicated VCC and two VSS pins for noise reduction and current distribution. |
Key Features
| Feature | Design Value |
|---|---|
| 15 ns Access Time with Full 16-Bit Bus | Enables direct connection to 16-bit microcontrollers (e.g., Intel 80C188, Motorola 68000 derivatives) without wait-state insertion. |
| Automatic CE-Controlled Power-Down | Reduces standby current to 0.5 mA without external logic or software intervention-ideal for intermittent-data-acquisition systems. |
| Independent Upper/Lower Byte Write Control | Eliminates need for external byte-masking logic in systems implementing 8-bit peripheral registers mapped into 16-bit address space. |
| TSOP II Package with Pb-Free Finish | Meets RoHS Directive 2011/65/EU; compatible with standard reflow profiles and automated SMT assembly lines. |
| TTL/CMOS-Compatible Interface Levels | Supports direct interfacing with both legacy 5 V TTL and modern 5 V CMOS logic families without level translators. |
Applications
| Industrial PLC Data Buffers | FPGA Configuration Memory |
|---|---|
|
Use Scenario: Storing runtime tag values and I/O image tables in programmable logic controllers with deterministic scan cycles. IC Role / Device Role / Timing Role: Asynchronous parallel SRAM providing sub-20 ns read/write response for cyclic data exchange between CPU and I/O modules. Use Value: Eliminates wait states in ladder logic execution; 15 ns tAA ensures full 16-bit word availability before next instruction fetch. |
Use Scenario: Holding configuration bitstreams for Xilinx Spartan or Altera Cyclone FPGAs during power-up and reconfiguration. IC Role / Device Role / Timing Role: Nonvolatile-configurable memory accessed as a parallel boot ROM by FPGA's master serial mode controller. Use Value: Dual-byte write capability allows fast partial reconfiguration of FPGA logic blocks without full bitstream reload. |
| Legacy Microcontroller Expansion | Test Equipment Pattern Memory |
|
Use Scenario: Extending on-chip RAM in 8051 or Z80-based instrumentation firmware where code size exceeds internal memory. IC Role / Device Role / Timing Role: External memory mapped into program/data space via address decoding logic and WAIT signal generation. Use Value: 15 ns tAA matches timing budgets of 12 MHz 8051 derivatives; BHE/BLE support enables clean 8-bit peripheral register overlays. |
Use Scenario: Storing digital stimulus/response patterns in automated test equipment (ATE) for semiconductor wafer probing. IC Role / Device Role / Timing Role: High-reliability parallel memory buffer synchronized to pattern generator clock and comparator sampling edges. Use Value: 0.5 mA ISB2 enables low-power pattern storage during idle periods; TSOP II package supports dense multi-channel channel layout. |
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 |
|---|---|---|---|
| ISSI IS61LV51216AL-15MLI | 15 ns tAA, 3.3 V supply, 44-pin TSOP II, ISB = 20 µA (lower than CY7C1020BN-15ZXCT's 0.5 mA) | Requires 3.3 V system rail and level translation for 5 V host interfaces; unsuitable for pure 5 V designs. | Select if migrating to lower-voltage systems and redesigning power delivery; not drop-in compatible due to VCC mismatch. |
| Cypress CY7C1021DV33-15ZXC | 15 ns tAA, 3.3 V supply, 44-pin TSOP II, same pinout but different VCC/VSS pin assignments and input thresholds | Designed for 3.3 V logic families; VIH/VIL thresholds incompatible with 5 V TTL signaling without buffering. | Choose only for new 3.3 V designs; requires PCB redesign and signal integrity validation-no electrical or mechanical drop-in replacement. |
Compared with IS61LV51216AL-15MLI and CY7C1021DV33-15ZXC, the CY7C1020BN-15ZXCT uniquely supports legacy 5 V systems with TTL-compatible inputs and zero-level-shift integration, making it irreplaceable in field-deployed industrial hardware where voltage rails and interface standards are fixed.
Availability
CY7C1020BN-15ZXCT is available at Aetrix Electronics and suitable for industrial PLC data buffers, FPGA configuration memory, legacy microcontroller expansion, and test equipment pattern memory requiring stable component supply and long-term obsolescence management.
Supply support for CY7C1020BN-15ZXCT 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 U.S.-based semiconductor company specializing in memory, PSoC, USB, and timing solutions for industrial, automotive, and consumer electronics.
The CY7C1020BN belongs to Cypress's legacy parallel SRAM product line, engineered for deterministic timing, robust 5 V operation, and seamless integration into microprocessor-based systems with minimal external logic.
FAQ
Is CY7C1020BN-15ZXCT RoHS compliant?
Yes. The "X" suffix in -15ZXCT denotes lead-free (Pb-free) construction per EU RoHS Directive 2011/65/EU. The TSOP II package uses matte tin terminations and complies with JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3) handling requirements.
Can CY7C1020BN-15ZXCT operate at 3.3 V?
No. The device is specified only for 5.0 V ±10% operation (4.5 V to 5.5 V). Attempting 3.3 V supply results in undefined behavior, including failure to meet tAA = 15 ns, increased ISB, and potential data corruption due to insufficient noise margin on VIH/VIL thresholds.
What is the maximum clock frequency supported for burst reads?
The CY7C1020BN-15ZXCT is an asynchronous SRAM and does not use a clock. Maximum sustained read throughput is determined by tRC = 15 ns, yielding up to 66.7 million 16-bit words per second when CE and OE are continuously asserted with address changes aligned to tRC boundaries.
Does CY7C1020BN-15ZXCT support battery backup operation?
No. While ISB2 = 0.5 mA enables low-power standby, the device lacks built-in battery-switching circuitry or VBAT pin. External backup schemes require discrete diode-ORing and voltage monitoring; data retention below VCC(min) = 4.5 V is not guaranteed per datasheet specifications.
CY7C1020BN-15ZXCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 44-TSOP (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:
- 512Kbit
- Memory Organization:
- 32K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 15ns
- Access Time:
- 15 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
CY7C1020BN-15ZXCT FAQ
1.How can I place an order for CY7C1020BN-15ZXCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C1020BN-15ZXCT 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 CY7C1020BN-15ZXCT reliable?
The price and inventory of CY7C1020BN-15ZXCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C1020BN-15ZXCT is usually 5 days.
3.What payment methods are accepted for CY7C1020BN-15ZXCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C1020BN-15ZXCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C1020BN-15ZXCT?
CY7C1020BN-15ZXCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C1020BN-15ZXCT 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 CY7C1020BN-15ZXCT?
For technical support, including CY7C1020BN-15ZXCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C1020BN-15ZXCT requirements.
6.How does Aetrix verify that CY7C1020BN-15ZXCT is sourced from the original manufacturer or authorized distributors?
All CY7C1020BN-15ZXCT 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 CY7C1020BN-15ZXCT meets industry standards.
7.What is the process for return or replacement of CY7C1020BN-15ZXCT?
All CY7C1020BN-15ZXCT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C1020BN-15ZXCT, 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 CY7C1020BN-15ZXCT part is unused and in its original packaging.
Return procedure for CY7C1020BN-15ZXCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY7C1020BN-15ZXCT Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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