Infineon Technologies CY7C1362B-166AJC

Overview

CY7C1362B-166AJC from Cypress Semiconductor is a 9-Mbit synchronous pipelined SRAM organized as 512K × 18 bits, operating at 166 MHz with 3.3V core and 2.5V/3.3V I/O supplies. It features registered inputs/outputs, synchronous self-timed writes, asynchronous output enable, and single-cycle chip deselect - deployed in high-speed networking line cards and embedded processor cache buffers.

For engineers reviewing the CY7C1362B-166AJC datasheet, CY7C1362B-166AJC pinout, CY7C1362B-166AJC application, or CY7C1362B-166AJC equivalent, key selection criteria include burst mode configuration (interleaved vs. linear), byte-write control granularity (BWA–BWD + BWE), clock-to-output timing (3.5 ns), and JEDEC-standard 100-pin TQFP package compatibility with 2-chip-enable architecture.

Technical Context

The CY7C1362B implements a two-bit internal burst counter synchronized to CLK's rising edge, supporting Intel Pentium®-compatible interleaved or linear burst sequences via the MODE strap pin. Address strobes ADSP (processor) and ADSC (controller) are sampled synchronously, enabling dual-bus system integration.

All data, address, and control inputs (CE1, CE2, GW, BWE, BWx, ADV) are registered on the rising edge of CLK; only OE and ZZ operate asynchronously. Byte write width (1–4 bytes) is controlled by BWA–BWD and BWE, while GW enables full-word writes independent of byte-select states.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (AJ version, 2-chip-enable variant), RoHS-compliant, body size 14 mm × 14 mm, 0.5 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362B-166AJC, the -200AJC delivers 20% higher throughput but demands stricter PCB routing and power delivery; IS61LV51218-10TL offers lower cost and simpler timing but lacks burst modes, byte-write flexibility, and JTAG testability essential for high-reliability systems.

Availability

CY7C1362B-166AJC is available at Aetrix Electronics and suitable for networking line cards, industrial PLC memory buffers, medical imaging frame stores, and avionics display controllers requiring stable component supply across extended production lifecycles.

Supply support for CY7C1362B-166AJC 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 U.S.-based semiconductor company specializing in high-performance memory, microcontrollers, and programmable solutions for industrial and communications markets.

The CY7C136x family was designed specifically for high-bandwidth, low-latency synchronous memory subsystems in embedded processors and network ASICs - emphasizing pipelined operation, flexible burst control, and robust signal integrity.

FAQ

What is the function of the MODE pin on CY7C1362B-166AJC?

The MODE pin is a static configuration input that selects burst addressing order: tied to GND for linear burst (sequential increment), or to VDD/floating for interleaved burst (Intel Pentium®-compatible pattern). It must remain stable during operation and has an internal pull-up resistor - no external bias required for interleaved mode.

Can CY7C1362B-166AJC operate with 2.5 V I/O while using 3.3 V core supply?

Yes. The device supports independent VDDQ (I/O supply) at either 2.5 V or 3.3 V while VDD (core) remains at 3.3 V. This allows direct interfacing with 2.5 V logic families without level shifters. VDDQ pins require dedicated decoupling, and I/O timing parameters (e.g., tAA, tOH) are specified separately for each VDDQ condition.

How does the ZZ (Sleep) pin affect power consumption and data retention?

When ZZ is driven HIGH, the device enters low-power sleep mode with typical standby current ≤30 mA - independent of clock activity. All stored data is retained, and the part resumes normal operation within one clock cycle after ZZ returns LOW. The pin has an internal pull-down, so floating defaults to active operation.

Is JTAG boundary scan supported on the CY7C1362B-166AJC in TQFP package?

No. JTAG signals (TDO, TDI, TCK, TMS) are only available on BGA and fBGA packages (119-ball and 165-ball variants). The 100-pin TQFP package (including AJ version) does not route JTAG pins - this is confirmed by pinout tables and package-specific documentation in Rev. *C datasheet.