Infineon Technologies CY7C1370KV25-167BZI

Overview

CY7C1370KV25 from Cypress Semiconductor is a 18-Mbit (512K × 36) synchronous pipelined SRAM with NoBL™ architecture, designed for high-throughput memory subsystems requiring zero-wait-state back-to-back read/write operations. It operates at 167 MHz with 3.4 ns clock-to-output delay, uses single 2.5 V core (VDD) and I/O (VDDQ) supplies, and supports byte write via four BW inputs for 36-bit data width.

For engineers reviewing the CY7C1370KV25 datasheet, CY7C1370KV25 pinout, CY7C1370KV25 application, or CY7C1370KV25 equivalent, key selection criteria include burst order configuration (linear/interleaved), synchronous self-timed write timing, JTAG boundary-scan support, and compatibility with ZBT™-based system designs requiring deterministic latency and full pipelining.

Technical Context

The device implements fully registered synchronous interfaces: all address, control, and data inputs are latched on the rising edge of CLK (qualified by CEN), and all outputs pass through output registers synchronized to CLK. Burst addressing is controlled by ADV/LD and MODE pins, enabling linear or interleaved sequences without external counters.

NoBL™ logic eliminates bus latency by internally managing output buffer timing-removing dependency on asynchronous OE-and enables true consecutive read/write transitions. Write operations use on-chip self-timed circuitry, ensuring consistent tWRL and tSDQZ timing across voltage/temperature, while three chip enables (CE1/CE2/CE3) and asynchronous OE support flexible bank expansion and output control.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1370DV25-167BZI, this part adds VDDQ separation for improved signal integrity on wide buses; versus IDT72V2115L16PF, it trades dual-port concurrency for simpler single-ended interface and deterministic NoBL™ latency.

Availability

CY7C1370KV25 is available at Aetrix Electronics and suitable for telecom infrastructure, avionics data recorders, industrial motion controllers, and network packet buffers requiring stable component supply across extended product lifecycles.

Supply support for CY7C1370KV25 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 logic solutions for industrial, automotive, and communications markets.

The CY7C1370KV25 belongs to Cypress's NoBL™ SRAM product line, engineered specifically for systems demanding deterministic, zero-latency memory access in high-clock-rate synchronous bus architectures.

FAQ

What is the function of the MODE pin, and can it be changed during operation?

The MODE pin is a static strap that selects burst order: HIGH enables interleaved burst, LOW enables linear burst. It must be set before initialization and held stable during operation-changing it mid-operation causes undefined address sequencing and potential data corruption. The pin has an internal pull-up, so floating defaults to interleaved mode.

How does the device handle output enable (OE) during write cycles?

OE is masked during the data portion of write sequences, meaning outputs are automatically three-stated regardless of OE state. This prevents bus contention when DQ lines transition from input (write data) to output (subsequent read). OE remains effective only during read cycles and idle states, and its asynchronous nature allows fast output disable outside clock domain constraints.

Is the CY7C1370KV25 pin-compatible with ZBT™ SRAMs?

Yes-the CY7C1370KV25 is explicitly designed as pin-compatible and functionally equivalent to ZBT™ devices such as the IDT72V2113. Signal mapping (address, data, control), package footprint (100-pin TQFP), and AC timing parameters align per JEDEC ZBT specifications, enabling drop-in replacement in legacy ZBT-based designs without PCB redesign.

What is the role of ADV/LD in burst and single-access modes?

In burst mode, ADV/LD HIGH advances the internal address counter; LOW loads a new starting address. In single-access mode, ADV/LD must be LOW to latch the address on the next CLK rise. After deselection, ADV/LD must be driven LOW before re-enabling to ensure correct address capture-failure to do so may cause address aliasing or skipped locations.