Infineon Technologies CY7C1470V33-167BZC

Overview

CY7C1470V33 from Infineon Technologies (formerly Cypress) is a 72-Mbit synchronous pipelined SRAM with NoBL™ architecture, configured as 2M × 36, operating at 167 MHz with 3.4 ns clock-to-output time, single 3.3 V core supply, and 3.3 V/2.5 V I/O support. It enables zero-wait-state back-to-back read/write operations in high-throughput network packet buffering systems.

For engineers reviewing the CY7C1470V33 datasheet, CY7C1470V33 pinout, CY7C1470V33 application, or CY7C1470V33 equivalent, key selection criteria include burst mode support (linear/interleaved), byte write capability (BWa–BWd), JTAG boundary scan compliance, ZZ sleep mode, and JEDEC-standard 100-pin TQFP packaging.

Technical Context

This SRAM implements fully registered synchronous interfaces: all address, control, and data signals pass through input registers on the rising clock edge; all outputs are clocked through output registers. Internal self-timed output buffer control eliminates asynchronous OE timing constraints.

The device supports three chip enables (CE1, CE2, CE3) for bank selection, synchronous self-timed writes, and burst access with ADV/LD-controlled address sequencing. Sleep mode is activated via the ZZ pin, requiring external grounding per errata on page 35 of Rev. *Y datasheet.

Key Specifications

Pinout & Package

Package: JEDEC-standard Pb-free 100-pin TQFP (14 × 20 × 1.4 mm). Pin 64 (ZZ) requires external connection to ground per datasheet errata (page 35).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72T3616L16PF and AS7C33256A-167JC, CY7C1470V33 delivers 2.25× higher density and deterministic zero-wait-state throughput via NoBL™, making it optimal for next-generation packet processing where latency and bandwidth are critical.

Availability

CY7C1470V33 is available at Aetrix Electronics and suitable for network packet buffering, telecom line card memory, baseband processor cache, and radar signal processing applications requiring stable component supply and long-term lifecycle support.

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.

CY7C1470V33 belongs to Infineon's high-performance synchronous SRAM product line, designed specifically for zero-latency, burst-oriented data buffering in networking and real-time signal processing infrastructure.

FAQ

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

The ZZ pin (Pin 64 in 100-pin TQFP) must be externally connected to ground to ensure proper deep power-down functionality. This requirement is documented in the errata on page 35 of datasheet Rev. *Y. Leaving ZZ floating or pulling high disables sleep mode and may cause undefined behavior during low-power operation.

Does CY7C1470V33 support both linear and interleaved burst modes?

Yes, CY7C1470V33 supports both linear and interleaved burst orders, selected via the MODE pin. Linear burst increments addresses sequentially (e.g., 0x00, 0x01, 0x02), while interleaved uses XOR-based addressing (e.g., 0x00, 0x02, 0x01, 0x03), matching cache-line fetch patterns in many processors and FPGAs.

How does the NoBL™ architecture eliminate bus latency?

NoBL™ eliminates bus latency by enabling consecutive read and write operations without wait states through fully registered pipelines and internal self-timed output control. Unlike conventional SRAMs, it avoids OE-driven asynchronous output enable delays and allows data transfer on every clock cycle, even during read-to-write transitions.

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

Yes, CY7C1470V33 supports independent 3.3 V core (VDD) and 2.5 V I/O (VDDQ) supplies. The VDDQ pins must be decoupled separately, and all I/O timing parameters (e.g., setup/hold) are specified for 2.5 V operation in the datasheet's 2.5 V AC test conditions section (page 20).