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Infineon Technologies CY7C1440AV33-167AXC
- Part No.:
- CY7C1440AV33-167AXC
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
CY7C1440AV33-167AXC.pdf
- Description:
- IC SRAM 36MBIT PAR 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,692
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Product details
Overview
CY7C1440AV33-167AXC from Cypress Semiconductor is a 36-Mbit (1M × 36) pipelined synchronous SRAM with registered inputs/outputs, 3.3 V core supply, 2.5 V/3.3 V I/O support, and 167 MHz operation (3.4 ns clock-to-output). It implements Intel Pentium™-compatible interleaved or linear burst addressing via user-selectable MODE pin and supports byte-write and global-write operations for cache subsystems in high-performance embedded controllers.
For engineers reviewing the CY7C1440AV33-167AXC datasheet, CY7C1440AV33-167AXC pinout, CY7C1440AV33-167AXC application, or CY7C1440AV33-167AXC equivalent, key selection criteria include synchronous burst timing, dual-voltage I/O compatibility, JTAG boundary-scan testability, ZZ sleep mode control, and TQFP/FBGA package options for memory subsystem integration.
Technical Context
The device uses a positive-edge-triggered CLK to register all synchronous inputs-including address (A[1:0]), chip enables (CE1–CE3), burst controls (ADSP, ADSC, ADV), and write enables (BWX, BWE, GW)-and employs a two-bit on-chip wraparound burst counter for automatic address incrementing. Output data is registered on the rising edge of CLK with tCO = 3.4 ns at 167 MHz.
It supports asynchronous OE and ZZ controls: OE enables tri-state output control independent of clock, while ZZ places the device in low-power sleep mode with data retention. All I/Os comply with JEDEC JESD8-5, and IEEE 1149.1 JTAG boundary scan is implemented for production testability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 36 Mbit (1M × 36 organization), enabling single-chip 36-bit wide cache line storage |
| Max operating frequency | 167 MHz - defines maximum sustained burst throughput in synchronous bus systems |
| Clock-to-output delay (tCO) | 3.4 ns - determines minimum read cycle latency for pipelined CPU interface timing |
| Core supply voltage | 3.3 V ± 0.3 V - requires dedicated low-noise 3.3 V rail for internal logic and array operation |
| I/O supply voltage | 2.5 V or 3.3 V - allows direct interfacing with either 2.5 V or 3.3 V processor buses without level shifters |
| Burst addressing mode | User-selectable via MODE pin - supports both Pentium™-interleaved and linear sequences for legacy and custom controller compatibility |
| Byte write capability | Four independent byte lanes (BWA–BWD) with BWE qualification - enables precise 8-bit updates without read-modify-write overhead |
Pinout & Package
CY7C1440AV33-167AXC is packaged in Pb-free 100-pin TQFP (14 × 20 × 1.4 mm) and 165-ball FBGA (15 × 17 × 1.4 mm). The "AXC" suffix denotes the 100-pin TQFP variant with commercial temperature range (0°C to +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK | Synchronous clock input | Positive-edge-triggered master timing reference for all registered inputs and outputs |
| ADSP / ADSC | Address strobe inputs | Asynchronous initiation signals sampled on CLK edge; ADSP takes priority over ADSC for address capture |
| ADV | Burst advance control | Active-Low signal that increments internal 2-bit burst counter on CLK rise during burst sequence |
| OE | Asynchronous output enable | Tri-states DQ/DQP pins immediately when HIGH; overrides clock-controlled output registers |
| ZZ | Asynchronous sleep mode | Active-HIGH input that reduces standby current while preserving data; internal pull-down ensures safe default LOW state |
| BWA–BWD, BWE, GW | Byte and global write controls | Enable selective 8-bit writes (BWA–BWD + BWE) or full 36-bit writes (GW active LOW) synchronized to CLK |
Key Features
| Feature | Design Value |
|---|---|
| Pipelined synchronous interface | Full register-to-register timing with 3.4 ns tCO enables tight integration into 167 MHz CPU data paths without wait states |
| Dual-voltage I/O support | 2.5 V/3.3 V selectable VDDQ allows interoperability with mixed-voltage system buses without external level translation |
| JTAG boundary scan (IEEE 1149.1) | Enables in-circuit testability and interconnect verification on dense PCBs without physical probe access |
| User-configurable burst mode | MODE pin selects between Pentium™-interleaved (e.g., 0,2,4,6) or linear (e.g., 0,1,2,3) address sequencing for processor-specific cache alignment |
| Low-latency deselect | Single-cycle chip deselect via CE1/CE2/CE3 deassertion eliminates bus contention during bank switching |
Applications
| Secondary Cache Memory | High-Speed Network Buffer |
|---|---|
|
Use Scenario: L2 cache for x86-compatible microcontrollers running at 133–167 MHz bus speeds. IC Role / Device Role / Timing Role: Pipelined synchronous SRAM providing zero-wait-state burst reads/writes aligned to Pentium™-interleaved addressing. Use Value: Eliminates CPU stall cycles during cache line fills by delivering 36-bit data within 3.4 ns after clock edge, matching processor burst timing requirements. |
Use Scenario: Packet buffering in 10/100 Mbps Ethernet switch ASICs requiring deterministic latency and multi-port access arbitration. IC Role / Device Role / Timing Role: Shared memory resource with separate ADSP/ADSC strobes allowing concurrent CPU and DMA controller access. Use Value: Enables simultaneous read/write operations across independent address spaces using CE2/CE3 for bank isolation and OE for output arbitration. |
| Industrial Motion Controller Buffer | Avionics Data Acquisition FIFO |
|
Use Scenario: Real-time position interpolation buffer in servo drive firmware where jitter-free data delivery is critical. IC Role / Device Role / Timing Role: Synchronous SRAM with ZZ sleep mode used during idle motion phases to reduce system power without losing buffered trajectory data. Use Value: Maintains data integrity during 100+ ms sleep intervals while drawing only 120 mA standby current, extending thermal margin in sealed enclosures. |
Use Scenario: High-reliability sensor data staging in DO-254-compliant flight control systems requiring traceable test coverage. IC Role / Device Role / Timing Role: JTAG-enabled memory supporting IEEE 1149.1 boundary scan for structural test and fault isolation per avionics design assurance levels. Use Value: Provides full pin-level controllability and observability during board-level test, satisfying DAL-B diagnostic coverage requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT72V2115L15PF | 2.5 V core, 15 ns access, 1M × 18 organization - requires two devices for 36-bit width | Lacks burst counter, MODE pin, and JTAG; supports only linear bursts | Choose when lower core voltage and simpler control interface outweigh need for burst flexibility and testability |
| ISSI IS61WV102436B | 3.3 V core, 167 MHz, 1M × 36, but no JTAG, no ZZ sleep, and no ADSP/ADSC dual-strobe architecture | Relies on single CE and synchronous OE; lacks processor/controller address strobe separation | Prefer for cost-sensitive designs where JTAG testability and dual-bus arbitration are not required |
Compared with IDT72V2115L15PF and IS61WV102436B, CY7C1440AV33-167AXC uniquely delivers integrated burst sequencing, dual-address-strobe arbitration, IEEE 1149.1 testability, and low-power sleep-making it optimal for high-integrity, multi-master synchronous memory subsystems.
Availability
CY7C1440AV33-167AXC is available at Aetrix Electronics and suitable for secondary cache memory, high-speed network buffers, industrial motion controller buffers, and avionics data acquisition FIFOs requiring stable component supply and long-term obsolescence management.
Supply support for CY7C1440AV33-167AXC 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 high-performance memory, PSoC programmable systems-on-chip, and USB/USB-C solutions.
CY7C1440AV33 belongs to Cypress's high-speed synchronous SRAM product line, engineered specifically for low-latency, burst-capable cache and buffer applications in x86-compatible and real-time embedded systems.
FAQ
Is CY7C1440AV33-167AXC still in production?
No - Cypress officially marked this part as obsolete per document 38-05383 Rev. *N (November 2016), with no designated replacement. However, Aetrix Electronics maintains verified legacy inventory with full traceability, conforming to original manufacturing specs and RoHS compliance records.
What is the function of the MODE pin?
The MODE pin selects burst addressing sequence: logic LOW configures linear burst (0,1,2,3), while logic HIGH enables Pentium™-interleaved burst (0,2,4,6). It is sampled synchronously on the rising edge of CLK during the first cycle of a burst access and remains latched until next burst initiation.
Can CY7C1440AV33-167AXC operate with only 2.5 V I/O supply?
Yes - VDDQ may be set to 2.5 V ± 0.2 V while maintaining full functionality and AC timing specifications. Core VDD must remain at 3.3 V ± 0.3 V. All I/O pins meet JEDEC JESD8-5 standards for 2.5 V operation, including drive strength and input thresholds.
Does the ZZ sleep mode affect JTAG functionality?
No - JTAG boundary scan remains fully operational in ZZ sleep mode. TCK, TMS, TDI, and TDO retain their defined electrical characteristics and state-machine behavior; only core memory array and synchronous logic enter low-power retention, leaving TAP controller active for test access.
CY7C1440AV33-167AXC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Synchronous, SDR
- Memory Size:
- 36Mbit
- Memory Organization:
- 1M x 36
- Memory Interface:
- Parallel
- Clock Frequency:
- 167 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 3.4 ns
- Voltage - Supply:
- 3.135V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x20)
CY7C1440AV33-167AXC FAQ
1.How can I place an order for CY7C1440AV33-167AXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C1440AV33-167AXC 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 CY7C1440AV33-167AXC reliable?
The price and inventory of CY7C1440AV33-167AXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C1440AV33-167AXC is usually 5 days.
3.What payment methods are accepted for CY7C1440AV33-167AXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C1440AV33-167AXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C1440AV33-167AXC?
CY7C1440AV33-167AXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C1440AV33-167AXC 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 CY7C1440AV33-167AXC?
For technical support, including CY7C1440AV33-167AXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C1440AV33-167AXC requirements.
6.How does Aetrix verify that CY7C1440AV33-167AXC is sourced from the original manufacturer or authorized distributors?
All CY7C1440AV33-167AXC 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 CY7C1440AV33-167AXC meets industry standards.
7.What is the process for return or replacement of CY7C1440AV33-167AXC?
All CY7C1440AV33-167AXC units undergo pre-shipment inspection (PSI). If there is an issue with CY7C1440AV33-167AXC, 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 CY7C1440AV33-167AXC part is unused and in its original packaging.
Return procedure for CY7C1440AV33-167AXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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