Infineon Technologies CY7C1470BV25-250AXI

Overview

CY7C1470BV25-250AXI 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 250 MHz with zero wait states, delivers 3.0 ns clock-to-output delay, supports byte-write via four BW inputs, and uses single 2.5 V core and I/O supplies.

For engineers reviewing the CY7C1470BV25-250AXI datasheet, CY7C1470BV25-250AXI pinout, CY7C1470BV25-250AXI application, or CY7C1470BV25-250AXI equivalent, key selection criteria include burst order configuration (linear/interleaved), synchronous self-timed write timing, JTAG boundary-scan support, and TQFP/FBGA package compatibility for PCB layout and thermal management.

Technical Context

The device implements fully registered pipelined operation: all address, control, and data signals are latched on the rising edge of CLK, with CEN qualifying clock recognition. Internal burst logic supports linear or interleaved addressing per MODE pin state, enabling seamless integration into cache-coherent or packet-buffering architectures.

It features synchronous self-timed writes controlled by WE and four byte-write selects (BWa–BWd), eliminating external write-strobe timing constraints. Output drivers are synchronously tri-stated during write data cycles, preventing bus contention without external glue logic.

Key Specifications

Pinout & Package

Available in JEDEC-standard Pb-free 100-pin TQFP (14 × 20 × 1.4 mm) and 165-ball FBGA (15 × 17 × 1.4 mm) packages. Pin functions are synchronized to CLK rising edge except OE (asynchronous) and MODE (strap).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2115L15PF and IS61WV204836BLL-15BLI, CY7C1470BV25-250AXI uniquely delivers 250 MHz zero-wait-state operation with NoBL™, JTAG testability, and 2.5 V power efficiency - making it the only choice for next-generation telecom and high-speed controller buffering.

Availability

CY7C1470BV25-250AXI is available at Aetrix Electronics and suitable for telecom line cards, network processor subsystems, base station radio units, and industrial real-time controllers requiring stable component supply across extended product lifecycles.

Supply support for CY7C1470BV25-250AXI 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.

CY7C1470BV25 belongs to Cypress's NoBL™ SRAM product line, engineered specifically to replace asynchronous and ZBT SRAMs in bandwidth-constrained, low-latency systems such as packet-switching fabric and real-time signal processing.

FAQ

What is the function of the MODE pin on CY7C1470BV25-250AXI?

The MODE pin is a static strap input that selects burst address order: pulled HIGH (or left floating) enables interleaved burst mode; pulled LOW configures linear burst mode. It must remain stable during operation, as dynamic switching corrupts burst sequences. This setting determines how ADV/LD increments the internal address counter during consecutive accesses.

Does CY7C1470BV25-250AXI support true simultaneous read-write operations?

No - CY7C1470BV25-250AXI is a single-port SRAM and does not support concurrent read and write to different addresses. However, it supports true back-to-back operations: a write completion in one cycle is immediately followed by a read initiation in the next, with zero wait states, enabled by its pipelined NoBL™ architecture and fully registered I/O path.

How does the "ZZ" Sleep Mode reduce power consumption?

In ZZ mode, the device enters a low-power standby state where core logic and output drivers are disabled while retaining memory contents. The maximum CMOS standby current is specified at 120 mA, independent of speed grade. ZZ is activated by driving the ZZ pin LOW while maintaining valid VDD/VDDQ and keeping CEN HIGH to halt clock activity - ideal for intermittent traffic scenarios.

Can CY7C1470BV25-250AXI be used with a 3.3 V controller interface?

No - CY7C1470BV25-250AXI requires 2.5 V ±0.2 V for both VDD (core) and VDDQ (I/O). Interfacing directly with 3.3 V logic violates absolute maximum ratings and risks damage. Level-shifting circuitry (e.g., dual-supply translators like TXS0108E) is mandatory when connecting to 3.3 V controllers, and timing margins must be re-verified per translation path delays.