Cypress Semiconductor Corp CY7C1470V33-167AXC

Overview

CY7C1470V33 from Infineon Technologies (formerly Cypress) is a 72-Mbit synchronous pipelined SRAM with NoBL™ architecture, configured as 2M × 36, supporting zero-wait-state 167 MHz bus operation. It features fully registered I/O, byte write capability (BWa–BWd), 3.3 V core supply with 3.3 V/2.5 V I/O support, and JEDEC-standard Pb-free 100-pin TQFP packaging. Used in high-throughput network packet buffers and telecom line card data path staging.

For engineers reviewing the CY7C1470V33 datasheet, CY7C1470V33 pinout, CY7C1470V33 application, or CY7C1470V33 equivalent, key selection criteria include burst mode compatibility (linear/interleaved), synchronous self-timed write timing, ZZ sleep mode implementation, and JTAG boundary scan support for system-level testability.

Technical Context

The CY7C1470V33 implements a true pipelined read/write architecture with all inputs and outputs registered on the rising clock edge, enabling back-to-back operations without bus latency. Its NoBL™ logic eliminates asynchronous output enable dependency by using internally self-timed output buffer control.

It supports three chip enables (CE1/CE2/CE3) for bank selection, synchronous clock enable (CEN) to suspend operation, and burst addressing via ADV/LD with linear or interleaved order. The ZZ pin enables low-power sleep mode when driven low externally per errata guidance.

Key Specifications

Pinout & Package

Package: JEDEC-standard Pb-free 100-pin Thin Quad Flat Package (TQFP), 14 mm × 20 mm × 1.4 mm body, 0.5 mm pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous pipelined SRAM applications.

Compared with IDT72T36160L167BG and IS61WV204836BLL-167TQLI, the CY7C1470V33 uniquely delivers zero-wait-state pipelining with integrated burst control and IEEE 1149.1 testability-critical for new designs requiring deterministic latency and production test coverage.

Availability

CY7C1470V33 is available at Aetrix Electronics and suitable for network packet buffering, telecom line card staging, and high-performance test equipment requiring stable component supply and long-term lifecycle assurance.

Supply support for CY7C1470V33 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

Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power systems, sensors, and memory solutions for industrial, automotive, and communications markets.

The CY7C1470V33 belongs to Infineon's legacy Cypress synchronous SRAM product line, engineered specifically for high-throughput, low-latency data buffering in telecom infrastructure and test instrumentation where deterministic timing and burst efficiency are mandatory.

FAQ

What is the required external connection for the ZZ pin on CY7C1470V33?

The ZZ pin (Pin 64 in 100-pin TQFP) must be externally connected to ground to enable sleep mode, as specified in the device errata on page 35 of the datasheet. Leaving ZZ floating or pulling high disables sleep functionality and may cause undefined behavior during low-power operation.

Does CY7C1470V33 support both linear and interleaved burst orders?

Yes, burst order is selected by the MODE pin: logic high configures linear burst, logic low selects interleaved burst. This matches common processor cache line fetch patterns and allows optimization for specific data access locality in the target system.

Can CY7C1470V33 operate with 2.5 V I/O voltage while maintaining 3.3 V core supply?

Yes, the device supports independent 3.3 V VDD and 2.5 V VDDQ supplies. VDDQ must be stable within ±0.2 V of 2.5 V when used, and all I/O pins (DQ, BW, CE, etc.) reference VDDQ for logic thresholds, enabling direct interfacing with 2.5 V FPGAs or ASICs.

Is JTAG boundary scan functional without external programming hardware?

JTAG is fully compliant with IEEE 1149.1 and operates using standard TCK/TMS/TDI/TDO signals. No proprietary programming hardware is needed-any industry-standard JTAG controller can perform boundary scan testing, though dedicated test vectors must be generated per board layout.