Infineon Technologies CY7C1362C-166AJXCT

Overview

CY7C1362C-166AJXCT from Cypress Semiconductor is a 9-Mbit synchronous pipelined SRAM configured as 512K × 18, operating at 166 MHz with 3.3 V core (VDD) and 2.5/3.3 V I/O (VDDQ) support, registered inputs/outputs for burst timing control, and IEEE 1149.1 JTAG boundary scan - deployed in high-speed network packet buffers and telecom line-card memory subsystems.

For engineers reviewing the CY7C1362C-166AJXCT datasheet, CY7C1362C-166AJXCT pinout, CY7C1362C-166AJXCT application, or CY7C1362C-166AJXCT equivalent, key selection criteria include burst sequence mode (interleaved vs. linear), chip enable architecture (2-CE vs. 3-CE TQFP variants), ZZ sleep mode behavior, and byte-write granularity (BWA–BWD + BWE).

Technical Context

The CY7C1362C implements a two-bit internal burst counter synchronized to CLK, with address latching triggered by either ADSP (processor strobe) or ADSC (controller strobe), and automatic address increment on ADV assertion. All synchronous inputs - including A[1:0], CE1/CE2, BWA–BWD, BWE, GW, OE, ADSP/ADSC, ADV - are registered on the rising edge of CLK.

It supports synchronous self-timed writes with programmable byte-width (1–4 bytes), asynchronous OE-controlled output tri-state, and single-cycle chip deselect. The device enters low-power ZZ sleep mode when ZZ is HIGH, preserving data integrity without clock dependency.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 × 20 × 1.4 mm), Pb-free, 2-chip-enable variant (AJ version). Pin pitch: 0.5 mm. Thermal resistance (θ_JA): 42 °C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV102418BLL-10BLI and MT55LSD256K18P-166:G, the CY7C1362C-166AJXCT uniquely delivers Intel-compatible burst sequencing, dual-strobe address capture, and VDDQ voltage selectability - critical for legacy bus interoperability and power-aware embedded systems.

Availability

CY7C1362C-166AJXCT is available at Aetrix Electronics and suitable for telecom line cards, network packet buffers, industrial PLC backplanes, and test equipment memory subsystems requiring stable component supply, long-lifecycle assurance, and Pb-free compliance.

Supply support for CY7C1362C-166AJXCT 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 CY7C136x series was designed specifically for high-throughput, low-latency synchronous memory applications in networking and real-time control systems - emphasizing burst predictability, multi-master bus compatibility, and robust signal integrity at 166 MHz.

FAQ

What is the function of the MODE pin on CY7C1362C-166AJXCT?

The MODE pin selects burst address sequence behavior: logic HIGH configures Intel Pentium®-compatible interleaved addressing (e.g., 0, 2, 4, 6), while logic LOW enables linear addressing (e.g., 0, 1, 2, 3). This setting is sampled at power-up and remains static during operation; it directly maps to the internal burst counter's increment logic and must match the host processor's cache-line expectation.

Can CY7C1362C-166AJXCT operate with VDDQ = 2.5 V while VDD = 3.3 V?

Yes - the device explicitly supports mixed-supply operation: VDD must be 3.3 V ± 0.3 V for core logic and memory array, while VDDQ may be independently set to either 2.5 V or 3.3 V to match the I/O voltage of the connected controller or FPGA. This is confirmed in the DC Electrical Characteristics table (page 22) and pin definition (page 8) of datasheet 38-05540 Rev. *U.

How does ZZ sleep mode affect timing and data retention?

When ZZ is driven HIGH, the device enters a non-time-critical sleep state: clock (CLK) may stop, all outputs go high-impedance, and core current drops to ≤40 mA. Data is retained indefinitely as long as VDD remains within specification (3.0–3.6 V); no minimum CLK frequency or refresh cycles are required. Recovery to active operation takes ≤20 ns after ZZ returns LOW and CE1 becomes active.

Is JTAG boundary scan supported on the CY7C1362C-166AJXCT TQFP package?

No - JTAG (IEEE 1149.1) is only implemented in the 119-ball BGA and 165-ball FBGA packages, as confirmed in Figure 3 (BGA pinout, TDO/TCK/TDI/TMS shown) and Figure 4 (FBGA pinout), and explicitly noted in the "Selection Guide" footnote on page 2. The 100-pin TQFP (AJ version) lacks dedicated JTAG pins and does not support boundary scan.