Infineon Technologies CY7C1370KV25-167AXCT

Overview

CY7C1370KV25-167AXCT 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 dual 2.5 V supplies (VDD core, VDDQ I/O), and supports byte write via four BW inputs - deployed in networking packet buffers and telecom line cards.

For engineers reviewing the CY7C1370KV25-167AXCT datasheet, CY7C1370KV25-167AXCT pinout, CY7C1370KV25-167AXCT application, or CY7C1370KV25-167AXCT equivalent, key selection criteria include burst order configuration (linear/interleaved), synchronous self-timed write timing, JTAG boundary-scan support, and TQFP-100 package compatibility with ZBT™-legacy designs.

Technical Context

This SRAM implements fully registered pipelined operation: 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 the same edge. The internal NoBL™ logic eliminates bus latency by enabling true consecutive read/write cycles without wait states.

Burst access is configurable via MODE pin (interleaved or linear), while ADV/LD controls address counter advancement or new address loading. Write operations use synchronous self-timed circuitry qualified by WE and BWa–BWd, and output drivers are synchronously three-stated during write data phases to prevent bus contention.

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 IDT72V2115L167PF and IS61WV102436B-167TQLI, the CY7C1370KV25-167AXCT uniquely combines JTAG testability, dual-supply operation, hardware-selectable burst order, and low-power ZZ sleep - making it optimal for telecom and aerospace applications demanding traceability, signal integrity, and flexible memory controller integration.

Availability

CY7C1370KV25-167AXCT is available at Aetrix Electronics and suitable for telecom line card buffering, network switch packet memory, and radar signal processing FIFOs requiring stable component supply across multi-year production cycles.

Supply support for CY7C1370KV25-167AXCT 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 CY7C1370KV25 belongs to Cypress's NoBL™ SRAM product line, engineered specifically to replace asynchronous and ZBT™ SRAMs in bandwidth-constrained systems requiring deterministic, zero-latency memory access for real-time data flow.

FAQ

What is the function of the MODE pin on CY7C1370KV25-167AXCT?

The MODE pin is a static strap input that selects burst address order: logic HIGH configures interleaved burst mode, while logic LOW selects linear burst mode. It must be held stable during operation and defaults to HIGH (interleaved) if left floating. This setting directly determines how the internal address counter increments during burst accesses and must match the memory controller's expected sequence.

Does CY7C1370KV25-167AXCT support power-down modes?

Yes - it supports two low-power states: "stop clock" mode (CEN = HIGH while CE1/CE2/CE3 remain asserted) and "ZZ" sleep mode (CE1 = HIGH, CE2 = LOW, CE3 = HIGH, and ZZ = LOW). In ZZ mode, core current drops to ≤100 µA while retaining data, and wake-up latency is one clock cycle after exit conditions are met.

How does the ADV/LD pin affect address loading behavior?

ADV/LD controls the internal address counter: when LOW at the rising edge of CLK (with CEN active), it loads a new address from A0–A18; when HIGH, it advances the counter for burst operations. After device deselection, ADV/LD must be driven LOW before the next access to ensure correct address initialization - failure to do so may cause invalid burst sequences or data corruption.

Can CY7C1370KV25-167AXCT be used with a 3.3 V interface?

No - it requires VDDQ = 2.5 V ±0.2 V for I/O signaling and is not 3.3 V tolerant. Driving address/control inputs above 2.625 V violates absolute maximum ratings. Interfacing with 3.3 V systems requires level-shifting circuitry or a compatible 2.5 V logic family (e.g., LVTTL or SSTL_2).