Cypress Semiconductor Corp CY7C1470BV33-167BZXI

Overview

CY7C1470BV33-167BZXI from Cypress Semiconductor is a 72-Mbit (2M × 36) pipelined synchronous SRAM with NoBL™ architecture, designed for high-throughput memory buffering in network packet processors and telecom line cards. It operates at 167 MHz with zero wait states, supports 3.3 V core/2.5 V I/O, delivers 3.4 ns clock-to-output time, and features fully registered inputs/outputs with byte-write capability.

For engineers reviewing the CY7C1470BV33-167BZXI datasheet, CY7C1470BV33-167BZXI pinout, CY7C1470BV33-167BZXI application, or CY7C1470BV33-167BZXI equivalent, key selection criteria include burst mode support (linear/interleaved), 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, rising-edge-triggered pipeline architecture with three independent chip enables (CE1 low, CE2 high, CE3 low) and clock enable (CEN) for cycle suspension without deselection. All address, control, and data signals are registered on CLK's rising edge, eliminating asynchronous timing hazards.

NoBL™ logic enables true back-to-back read/write operations by internally managing output buffer timing-eliminating need for external OE control during data transfers. Burst addressing is supported via ADV/LD input, with configurable linear or interleaved order, and ZZ sleep mode reduces standby current to 120 mA.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 × 20 × 1.4 mm), Pb-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72T3615L167BG and IS61WV204836BLL-167TQLI, CY7C1470BV33-167BZXI uniquely combines NoBL™ zero-latency pipelining, integrated JTAG, and deep-sleep mode - making it optimal for telecom and defense systems requiring both performance determinism and production testability.

Availability

CY7C1470BV33-167BZXI is available at Aetrix Electronics and suitable for network packet buffering, telecom line card memory, baseband processing cache, and radar signal processing FIFO applications requiring stable component supply across extended product lifecycles.

Supply support for CY7C1470BV33-167BZXI 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 programmable analog/digital ICs for industrial, automotive, and communications markets.

CY7C1470BV33 belongs to Cypress's NoBL™ SRAM product line, engineered specifically for deterministic, high-throughput memory interfacing in networking and telecom infrastructure where latency predictability and burst efficiency are critical.

FAQ

What is the function of the ADV/LD pin in CY7C1470BV33-167BZXI?

The ADV/LD pin controls burst addressing behavior: when HIGH and CEN is active, it advances the internal address counter for sequential accesses; when LOW, it loads a new base address from the A[17:0] inputs. This dual-mode operation enables flexible burst initiation and restart without external address generation logic.

Does CY7C1470BV33-167BZXI support both linear and interleaved burst orders?

Yes - burst order is determined by the MODE pin state at the start of a burst sequence. MODE = LOW selects linear addressing (incremental), while MODE = HIGH selects interleaved addressing (bit-swapped). Both modes are fully supported in hardware and require no firmware configuration.

How does the ZZ (Sleep Mode) pin affect power consumption and data retention?

When ZZ is asserted LOW, the device enters deep sleep mode, reducing ICC to 120 mA while maintaining full data retention across the commercial temperature range (–40°C to +85°C). Data remains valid indefinitely as long as VDD and VDDQ remain within specification; no refresh or external intervention is required.

Can CY7C1470BV33-167BZXI operate with only 3.3 V supply, or is 2.5 V I/O mandatory?

The device requires both supplies: 3.3 V for core logic (VDD) and 2.5 V for I/O buffers (VDDQ). Operating VDDQ outside 2.4 V–2.6 V violates AC timing specs and risks signal integrity failure. The 2.5 V I/O rail is mandatory for guaranteed 167 MHz operation and proper DQ slew rate control.