Infineon Technologies CY7C1363C-133AJXCT

Overview

CY7C1363C-133AJXCT from Infineon Technologies (formerly Cypress) is a 9-Mbit synchronous flow-through SRAM organized as 512K × 18, designed for high-speed cache and buffer applications in microprocessor systems. It supports 133 MHz bus operation with 6.5 ns clock-to-output delay, uses 3.3 V core (±5%/+10%) and selectable 2.5 V/3.3 V I/O (VDDQ), and features synchronous self-timed write and asynchronous output enable.

For engineers reviewing the CY7C1363C-133AJXCT datasheet, CY7C1363C-133AJXCT pinout, CY7C1363C-133AJXCT application, or CY7C1363C-133AJXCT equivalent, key selection criteria include burst mode configuration (interleaved/linear via MODE pin), dual chip-enable architecture (CE1/CE2), JTAG boundary-scan support, and TQFP-100 Pb-free packaging with ZZ sleep mode.

Technical Context

This SRAM implements a synchronous flow-through architecture with a 2-bit on-chip burst counter that captures the initial address and auto-increments for subsequent burst cycles. All address, data, and control inputs (ADSP, ADSC, ADV, CE1–CE3, BWx, BWE, GW) are registered on the rising edge of CLK.

Asynchronous functions include OE-controlled output tri-state and ZZ-driven low-power sleep mode. Burst sequencing is selected by the MODE pin (HIGH = interleaved, LOW = linear), and address advancement is controlled independently by ADV, enabling flexible integration with Pentium™-compatible controllers and cache coherency logic.

Key Specifications

Pinout & Package

Packaged in Pb-free 100-pin TQFP (14 × 20 × 1.4 mm), the CY7C1363C-133AJXCT uses a 2-chip-enable variant (AJ suffix) with dedicated ADSP/ADSC address strobes, separate ADV for burst advancement, and IEEE 1149.1 JTAG-compliant TAP signals (TCK/TMS/TDI/TDO).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV102418BLL-133TQLI and MT48LC16M16A2P-6A:G, the CY7C1363C-133AJXCT delivers deterministic 6.5 ns flow-through latency, hardware-configurable burst behavior, and integrated JTAG - making it uniquely suited for real-time cache and deterministic buffer roles where timing predictability outweighs density or cost.

Availability

CY7C1363C-133AJXCT is available at Aetrix Electronics and suitable for L2 cache buffers, network packet buffers, and industrial PLC memory modules requiring stable component supply, long-term lifecycle support, and Pb-free compliance.

Supply support for CY7C1363C-133AJXCT 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

Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, sensing, connectivity, and memory solutions for industrial, automotive, and IoT applications.

The CY7C1363C belongs to Infineon's legacy Cypress synchronous SRAM product line, engineered specifically for high-performance, low-latency memory interfacing in microprocessor- and controller-based systems demanding deterministic timing and minimal glue logic.

FAQ

What is the function of the MODE pin on CY7C1363C-133AJXCT?

The MODE pin selects burst address sequencing: HIGH configures interleaved addressing (e.g., 0, 4, 2, 6 for 4-beat burst), matching Intel Pentium™ L2 cache protocols; LOW selects linear addressing (0, 1, 2, 3). This hardware-selectable mode eliminates firmware configuration and ensures cycle-accurate burst alignment with host controllers.

Does CY7C1363C-133AJXCT support JTAG boundary scan, and how is it enabled?

Yes, it implements IEEE 1149.1 JTAG boundary scan using dedicated TCK, TMS, TDI, and TDO pins. JTAG is enabled by default at power-up; no configuration register or fuse setting is required. The TAP controller operates at up to 25 MHz and supports full interconnect testing per JEDEC JESD-71 standards.

Can VDDQ be operated at 2.5 V while VDD remains at 3.3 V?

Yes - VDDQ is independently supplied and rated for either 2.5 V ±0.2 V or 3.3 V ±0.3 V, regardless of VDD (3.3 V ±5%/+10%). This allows direct interfacing with 2.5 V ASICs or FPGAs while maintaining full 133 MHz timing performance and 6.5 ns tCO specification.

What is the difference between ADSP and ADSC inputs?

ADSP (Address Strobe Processor) initiates bursts from the CPU side; ADSC (Address Strobe Controller) initiates bursts from cache controllers or DMA engines. Both are asynchronous inputs registered on CLK rise, enabling independent arbitration and priority handling - critical for systems with multiple bus masters sharing the same SRAM.