Infineon Technologies CY7C1383KV33-133AXCT

Overview

CY7C1383KV33-133AXCT from Cypress Semiconductor is a 18-Mbit synchronous flow-through SRAM with on-chip ECC, configured as 1M × 18 common I/O, operating at 133 MHz with 6.5 ns clock-to-output delay, 3.3 V core (VDD), and 2.5 V/3.3 V I/O (VDDQ), used in high-speed cache and buffer subsystems of network processors and telecom line cards.

For engineers reviewing the CY7C1383KV33-133AXCT datasheet, CY7C1383KV33-133AXCT pinout, CY7C1383KV33-133AXCT application, or CY7C1383KV33-133AXCT equivalent, key selection criteria include burst mode support (interleaved/linear), synchronous self-timed write timing, ZZ sleep mode operation, and JEDEC-standard 100-pin TQFP package compatibility with legacy SRAM-based memory controllers.

Technical Context

This SRAM implements a synchronous, flow-through architecture with dual address strobes (ADSP/ADSC), a 2-bit internal burst counter, and registered synchronous inputs (address, CE, BW, GW) sampled on CLK rising edge. It supports both interleaved and linear burst sequences selected via the MODE pin.

The device integrates on-chip ECC encoding/decoding for soft error mitigation, uses separate VDD (3.3 V) and VDDQ (2.5 V or 3.3 V) supplies, and features asynchronous OE and ZZ controls alongside IEEE 1149.1 JTAG boundary scan (not available in TQFP package).

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 × 20 × 1.4 mm), JEDEC-standard Pb-free, with exposed thermal pad (not electrically connected). Pin count and layout match industry-standard SRAM footprint for drop-in replacement in existing designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV102418BLL-133TQLI and MT48LC16M16A2P-6A:G, CY7C1383KV33-133AXCT uniquely delivers ECC-protected, flow-through synchronous operation in a pin-compatible 100-pin TQFP package-enabling direct upgrade of legacy SRAM-based systems without controller modification.

Availability

CY7C1383KV33-133AXCT is available at Aetrix Electronics and suitable for network processor cache, telecom line card buffer, and industrial PLC motion control applications requiring stable component supply and long-term obsolescence management.

Supply support for CY7C1383KV33-133AXCT 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 system-on-chip solutions for industrial, automotive, and communications markets.

CY7C1383KV33 belongs to Cypress's high-speed synchronous SRAM product line, designed specifically for deterministic, low-latency memory interfacing in real-time embedded systems where flow-through timing and hardware ECC are mandatory.

FAQ

What is the function of the MODE pin on CY7C1383KV33-133AXCT?

The MODE pin selects burst address sequence: HIGH (or floating, due to internal pull-up) enables interleaved burst mode ideal for cache line access, while LOW (tied to GND) selects linear burst mode suited for sequential DMA transfers. It must remain static during operation and is not sampled dynamically.

Does CY7C1383KV33-133AXCT support 2.5 V I/O operation?

Yes - VDDQ accepts either 2.5 V or 3.3 V, allowing direct interface with 2.5 V logic families without level shifters. The core VDD remains fixed at 3.3 V. I/O voltage must be stable within ±5% during operation, and VDDQ must power up before or simultaneously with VDD.

How does the ZZ sleep mode affect power consumption and data retention?

When ZZ is driven HIGH, the device enters a non-time-critical sleep state with typical standby current reduced to 25 µA (max 100 µA), while retaining all stored data. Data integrity is preserved across temperature and voltage variations; no refresh or external intervention is required during sleep.

Can CY7C1383KV33-133AXCT be used in place of CY7C1381KV33-133AXCT?

No - although pin-compatible in 100-pin TQFP, CY7C1383KV33 is 1M × 18 (18-bit data bus), whereas CY7C1381KV33 is 512K × 36 (36-bit bus). Address mapping, DQ/DQP pin usage, and burst counter behavior differ; substitution requires PCB and controller firmware changes.