Infineon Technologies CY7C1470BV33-200BZCT

Overview

CY7C1470BV33 from Cypress Semiconductor is a 72-Mbit (2M × 36) synchronous pipelined SRAM with NoBL™ architecture, designed for high-throughput memory subsystems in networking and telecom infrastructure. It operates at 200 MHz with zero wait states, supports 3.3 V core supply and 3.3 V/2.5 V I/O, and delivers 3.0 ns clock-to-output time. Its fully registered inputs/outputs enable true back-to-back read/write operations in packet buffering and cache applications.

For engineers reviewing the CY7C1470BV33 datasheet, CY7C1470BV33 pinout, CY7C1470BV33 application, or CY7C1470BV33 equivalent, key selection criteria include burst mode support (linear/interleaved), byte write capability via four BW pins, synchronous self-timed writes, JTAG boundary scan compliance, and compatibility with ZBT™-based system designs requiring deterministic latency.

Technical Context

The device implements a fully synchronous interface with all inputs and outputs registered on the rising edge of CLK, qualified by CEN. Address, control, and data are latched synchronously, eliminating asynchronous timing hazards and enabling predictable cycle-to-cycle operation.

NoBL™ logic eliminates bus latency by allowing consecutive read or write transfers on every clock cycle without pipeline stalls. Burst addressing is supported in linear or interleaved order, with ADV/LD controlling counter advance or address reload - critical for sequential packet header processing and DMA coherency.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 × 20 × 1.4 mm), Pb-free, JEDEC-standard footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1470BV33-250BZCT, this 200 MHz variant offers relaxed timing closure and lower power; versus IDT72V2115L10PF, it delivers 2× throughput and eliminates external flow control, reducing FPGA logic utilization by ~12% in burst-heavy designs.

Availability

CY7C1470BV33 is available at Aetrix Electronics and suitable for packet buffering in Ethernet switches, cache memory in telecom baseband processors, and PCI Express endpoint memory mapping requiring stable component supply across extended product lifecycles.

Supply support for CY7C1470BV33 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 fabless semiconductor company specializing in high-performance memory, microcontrollers, and connectivity solutions for industrial, automotive, and communications markets.

The CY7C1470BV33 belongs to Cypress's NoBL™ SRAM product line, engineered specifically for deterministic, high-bandwidth memory subsystems in network infrastructure and real-time embedded systems demanding zero-wait-state performance.

FAQ

What is the function of the ADV/LD pin in burst operations?

The ADV/LD pin controls the internal address counter behavior during burst accesses. When HIGH and CEN is active, it advances the counter to the next sequential address; when LOW, it loads a new starting address from A[17:0]. This dual-mode operation enables both continuous streaming (e.g., packet payload reads) and random-start bursts (e.g., descriptor table traversal) without external address generation logic.

Does CY7C1470BV33 support 2.5 V I/O signaling?

Yes - the device features a dedicated VDDQ supply pin that accepts either 3.3 V or 2.5 V, allowing direct interface with 2.5 V FPGAs or ASICs without level shifters. The I/O voltage is set independently of the 3.3 V VDD core supply, and all DC and AC specifications are guaranteed across both VDDQ levels per the datasheet's 2.5 V test conditions section.

How does the ZZ (Sleep Mode) pin reduce power consumption?

Asserting ZZ places the device into deep sleep mode by disabling internal clocks, gating output drivers, and powering down sense amplifiers and address decoders. This reduces standby current to ≤120 µA - a 99.8% reduction versus active standby - while preserving data integrity. Exit time from ZZ is 100 ns, enabling rapid resumption of traffic handling in bursty network applications.

Can CY7C1470BV33 be used as a drop-in replacement for ZBT SRAMs?

Yes - it is pin-compatible and functionally equivalent to ZBT devices, including identical control signal timing, burst protocols, and byte write behavior. No PCB or firmware changes are required. However, designers must verify that their system's OE timing aligns with CY7C1470BV33's asynchronous OE masking behavior during write cycles and deselect transitions.