Cypress Semiconductor Corp CY7C1470BV33-167AXI

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 line cards. It operates at 167 MHz with zero wait states, supports 3.3 V core and 3.3 V/2.5 V I/O supplies, and delivers 3.4 ns clock-to-output time. Its fully registered inputs/outputs and byte-write capability enable true back-to-back read/write operations in burst-capable systems.

For engineers reviewing the CY7C1470BV33 datasheet, CY7C1470BV33 pinout, CY7C1470BV33 application, or CY7C1470BV33 equivalent, key selection criteria include its 100-pin TQFP package, synchronous self-timed write control, IEEE 1149.1 JTAG compliance, and support for linear/interleaved burst modes - all critical for deterministic latency in packet buffering and cache coherency designs.

Technical Context

The CY7C1470BV33 implements a fully synchronous, pipelined memory interface where all address, control, and data signals are registered on the rising edge of CLK, qualified by CEN. Its NoBL™ logic eliminates bus latency by enabling consecutive read/write transfers without inter-cycle gaps.

It features four independent byte-write enables (BWa–BWd), three chip enables (CE1/CE2/CE3) with mixed polarity for flexible bank decoding, and an asynchronous OE that is masked during write cycles to prevent bus contention. The device supports both linear and interleaved burst addressing and includes ZZ Sleep Mode for dynamic power reduction.

Key Specifications

Pinout & Package

The CY7C1470BV33 is packaged in a JEDEC-standard Pb-free 100-pin TQFP (14 × 20 × 1.4 mm) with exposed pad for thermal management. Pin assignments are validated per Document 001-15031 Rev. *O, Figure 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2115L10PFI and IS61WV204836BLL-167TQLI, the CY7C1470BV33 uniquely delivers zero-wait-state burst operation and integrated sleep control - essential for next-generation packet-processing pipelines requiring both bandwidth and dynamic power scaling.

Availability

CY7C1470BV33 is available at Aetrix Electronics and suitable for packet buffering, cache coherency, telecom frame storage, and real-time signal processing applications 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 programmable analog/digital ICs 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 networking infrastructure and real-time embedded systems.

FAQ

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

The ADV/LD pin controls burst address generation: when HIGH (with CEN active), it advances the internal burst counter; when LOW, it loads a new starting address from A[17:0]. This enables seamless transition between sequential burst access and random-address operation without external address sequencing logic.

Does CY7C1470BV33 support 2.5 V I/O operation?

Yes - the device supports 2.5 V I/O voltage via the dedicated VDDQ supply pin, while maintaining 3.3 V core operation. This allows direct interface with 2.5 V logic families without level shifters, provided VDDQ is externally regulated to 2.5 V ±0.1 V and meets AC loading specifications in the datasheet.

How does the ZZ Sleep Mode reduce power consumption?

When ZZ is asserted LOW, the device enters deep sleep mode, disabling internal clocks and output drivers while retaining memory contents. This reduces operating current from 450 mA to ≤120 mA - matching standby current - making it ideal for intermittent traffic scenarios in telecom and networking equipment.

Is CY7C1470BV33 pin-compatible with ZBT™ SRAMs?

Yes - the CY7C1470BV33 is explicitly designed to be pin-compatible and functionally equivalent to standard ZBT™ SRAMs. This allows drop-in replacement in existing ZBT-based designs while delivering enhanced features including NoBL™ architecture, ZZ Sleep Mode, and JTAG boundary scan.