Infineon Technologies CY7C1360C-166BZC

Overview

CY7C1360C-166BZC from Infineon Technologies (formerly Cypress) is a 9-Mbit pipelined synchronous SRAM with 256K × 36 organization, supporting 166 MHz bus operation, 3.3 V core supply (VDD), and 2.5 V/3.3 V I/O (VDDQ). It features registered inputs/outputs, synchronous self-timed writes, and IEEE 1149.1 JTAG boundary scan - deployed in high-speed networking line cards requiring deterministic burst-access memory.

For engineers reviewing the CY7C1360C-166BZC datasheet, CY7C1360C-166BZC pinout, CY7C1360C-166BZC application, or CY7C1360C-166BZC equivalent, key selection criteria include pipelined access timing (3.5 ns clock-to-output), dual-voltage I/O compatibility, burst counter mode (Intel Pentium® interleaved/linear), CE1/CE2/CE3 chip enable flexibility, and TQFP-100 Pb-free packaging for thermal and layout-constrained telecom modules.

Technical Context

The CY7C1360C-166BZC implements a synchronous, clock-driven architecture where all address, data, and control inputs (ADSP, ADSC, ADV, BWA–BWD, GW, BWE, CE1–CE3) are registered on the rising edge of CLK. Its internal two-bit burst counter generates sequential addresses autonomously upon ADV assertion, enabling 3-1-1-1 access rates without external sequencing logic.

Burst operations support both Intel Pentium®-compatible interleaved and linear sequences via MODE pin configuration. Write cycles are byte-selectable (1–4 bytes) using BWx pins, with global write (GW) enabling full-word writes. Asynchronous OE and ZZ (sleep) pins allow output control and power-down independent of clock timing.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 × 20 × 1.4 mm), Pb-free, with 3-chip-enable (CE1/CE2/CE3) configuration per Figure 1 of datasheet Rev. *U.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1360C-200BZC, the -166BZC trades 34 MHz bandwidth for relaxed layout constraints and lower power; versus AS7C331024P-166JCIN, it delivers deterministic pipelined timing and JTAG testability at higher BOM cost and complexity.

Availability

CY7C1360C-166BZC is available at Aetrix Electronics and suitable for network line card buffering, telecom control plane memory, high-speed test equipment memory, and radar signal processing buffer applications requiring stable component supply across extended product lifecycles.

Supply support for CY7C1360C-166BZC 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 systems, sensors, and memory solutions for industrial, automotive, and communications markets.

CY7C1360C belongs to Infineon's legacy Cypress synchronous SRAM product line, engineered specifically for high-bandwidth, low-latency data buffering in telecom infrastructure and test instrumentation where pipelined burst access and JTAG testability are mandatory.

FAQ

What is the function of the MODE pin on CY7C1360C-166BZC?

The MODE pin selects burst address sequence behavior: logic LOW configures Intel Pentium®-compatible interleaved addressing (e.g., 0, 2, 4, 6), while HIGH enables linear addressing (e.g., 0, 1, 2, 3). This setting is sampled at the first rising edge of CLK after device power-up or reset and remains latched until next power cycle.

Can CY7C1360C-166BZC operate with 2.5 V I/O while using 3.3 V core supply?

Yes - VDDQ accepts 2.5 V ±0.2 V while VDD is maintained at 3.3 V ±0.3 V. This dual-supply configuration is explicitly supported per datasheet Section "DC Electrical Characteristics" and enables direct interfacing with 2.5 V FPGAs or ASICs without level shifters, provided VDDQ and VDD are ramped monotonically during power-up.

Does CY7C1360C-166BZC support partial-word writes without affecting adjacent bytes?

Yes - byte write enables BWA through BWD independently gate each 9-bit byte lane (DQA/DQPA, DQB/DQPB, DQC/DQPC, DQD/DQPD). When a BWx pin is LOW, only its associated byte is written; other bytes retain prior data. Global write (GW = LOW) overrides BWx and writes all 36 data bits simultaneously.

Is JTAG boundary scan enabled by default on CY7C1360C-166BZC?

No - JTAG is disabled at power-on. To enable, TMS must be held HIGH for at least 10 consecutive TCK cycles after power stabilization. Once enabled, JTAG remains active until next power cycle or explicit disable via instruction register. Pin assignments (TCK, TDI, TDO, TMS) match IEEE 1149.1 standard and are fixed per 100-pin TQFP package layout.