Infineon Technologies CY7C1370KV33-200AXCT

Overview

CY7C1370KV33-200AXCT from Cypress Semiconductor is a 18-Mbit (512K × 36) pipelined synchronous SRAM with NoBL™ architecture, ECC support, and 3.3 V core/2.5 V I/O operation. It delivers zero-wait-state 200 MHz bus performance (3.0 ns clock-to-output), fully registered I/O, byte-write capability, and on-chip ECC for soft error mitigation - deployed in high-throughput network packet buffers and telecom line cards.

For engineers reviewing the CY7C1370KV33-200AXCT datasheet, CY7C1370KV33-200AXCT pinout, CY7C1370KV33-200AXCT application, or CY7C1370KV33-200AXCT equivalent, key selection criteria include burst order configuration (linear/interleaved via MODE pin), synchronous self-timed write timing, JTAG boundary-scan compliance, and TQFP-100 package thermal and routing constraints.

Technical Context

This SRAM implements a fully synchronous, pipelined read/write interface with all inputs and outputs registered to the rising edge of CLK, and internal self-timed output buffer control eliminating asynchronous OE dependency. The device supports linear or interleaved burst orders selected by the MODE strap pin and includes IEEE 1149.1-compliant JTAG boundary scan for system-level testability.

It integrates on-chip ECC encoding/decoding logic to detect and correct single-bit errors, reducing soft error rate in radiation-sensitive environments. Write operations are controlled by four byte-write enables (BWa–BWd), WE, and CEN, with synchronous tri-state control of DQ/DQP lines during write data cycles to prevent bus contention.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 mm × 20 mm × 1.4 mm), JEDEC-standard Pb-free, with exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed pipelined SRAM applications.

Compared with IDT72V2115L10PFI and IS61WV102436BLL-150TQLI, CY7C1370KV33-200AXCT uniquely combines 200 MHz zero-wait-state operation, configurable burst order, on-chip ECC, and JTAG - making it the only option meeting simultaneous requirements for telecom packet buffering, radiation tolerance, and production testability.

Availability

CY7C1370KV33-200AXCT is available at Aetrix Electronics and suitable for network packet buffering, telecom line card design, radar signal capture, and industrial motion control applications requiring stable component supply across extended product lifecycles.

Supply support for CY7C1370KV33-200AXCT 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) designs high-reliability memory and programmable solutions for automotive, industrial, and communications markets.

CY7C1370KV33 belongs to Cypress's NoBL™ SRAM product line, engineered specifically for deterministic, high-throughput data buffering in telecom infrastructure and real-time embedded systems demanding ECC and JTAG testability.

FAQ

What is the function of the MODE pin, and how must it be configured?

The MODE pin is a static strap input that selects burst address order: HIGH enables interleaved burst, LOW enables linear burst. It must be held stable before initialization and remain unchanged during operation. Floating defaults to HIGH (interleaved). This pin is not sampled dynamically - its state sets the burst counter behavior at power-up and cannot be altered mid-operation without reset.

Does CY7C1370KV33-200AXCT support true dual-port operation?

No - it is a synchronous single-port SRAM with pipelined read/write capability. While it supports back-to-back reads and writes with zero wait states, it lacks independent read and write ports. Data contention is prevented by synchronous tri-state control of DQ/DQP lines during write cycles, not by physical port separation.

How does the ZZ pin interact with the CEN pin during low-power operation?

ZZ is asynchronous and forces immediate entry into sleep mode, halting internal clocks and reducing ICC to ~50 µA. CEN is synchronous and only gates CLK recognition - the device remains selected and retains state. Using ZZ provides deeper power savings; using CEN alone maintains readiness for immediate wake-up but draws higher standby current (~12 mA).

Can the ECC functionality be disabled for non-critical applications?

No - ECC is hardwired and always active on CY7C1370KV33-200AXCT. All 36-bit data words include 4 parity bits (DQPa–DQPd), and the encoder/decoder operates transparently. There is no register or pin control to bypass ECC; attempting to ignore parity bits violates the device's functional specification and risks undetected multi-bit errors.