Infineon Technologies CY7C1380KV33-167AXC

Overview

CY7C1380KV33-167AXC from Cypress Semiconductor is a 18-Mbit pipelined synchronous SRAM with 512K × 36 organization, operating at 167 MHz (t_CO = 3.4 ns), supporting 3.3 V core and 2.5/3.3 V I/O supplies, and featuring registered inputs/outputs for high-speed burst-mode cache interfacing in network processors and telecom line cards.

For engineers reviewing the CY7C1380KV33-167AXC datasheet, CY7C1380KV33-167AXC pinout, CY7C1380KV33-167AXC application, or CY7C1380KV33-167AXC equivalent, key selection considerations include synchronous burst timing (linear/interleaved), byte-write granularity (BWA–BWD + BWE), three-chip-enable depth expansion, JTAG boundary scan support, and TQFP-100 package compatibility with JEDEC-standard I/O levels.

Technical Context

This SRAM implements a two-bit synchronous wraparound burst counter controlled by ADV, ADSP, and ADSC strobes to generate internal sequential addresses during pipelined read/write cycles. All address, data, and control inputs (except OE and ZZ) are registered on the rising edge of CLK, enabling deterministic 3-1-1-1 access timing.

The device supports dual-burst modes selected via the static MODE pin (interleaved or linear), asynchronous OE for output tri-state control, and ZZ sleep mode with data retention. Write operations are self-timed and qualified by BWE + BWX signals or overridden by active-low GW for full-word writes.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 × 20 × 1.4 mm), Pb-free, JEDEC standard, with exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2115L16PF and IS61WV102436B, CY7C1380KV33-167AXC uniquely delivers 36-bit width with parity, integrated burst counter, JTAG testability, and low-power ZZ mode - making it optimal for high-reliability, high-throughput embedded cache designs where deterministic timing and debug visibility are mandatory.

Availability

CY7C1380KV33-167AXC is available at Aetrix Electronics and suitable for network packet buffering, telecom line card cache, high-speed test equipment memory, and industrial PLC motion control buffer applications requiring stable component supply and long-term obsolescence management.

Supply support for CY7C1380KV33-167AXC 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 CY7C1380KV33 belongs to Cypress's high-speed synchronous SRAM product line, designed specifically for low-latency, burst-oriented cache and buffer applications in networking and telecom infrastructure where deterministic timing and JEDEC-compliant I/O interoperability are critical.

FAQ

What is the function of the MODE pin, and how must it be configured?

The MODE pin selects burst address sequence: tied to GND for linear burst, or to VDD/floating for interleaved burst. It is a static strap pin with internal pull-up; configuration must be fixed at power-on and cannot change during operation. Incorrect MODE state causes invalid burst address generation and data corruption.

Can CY7C1380KV33-167AXC operate with 2.5 V core voltage?

No. The device requires a 3.3 V ± 0.3 V core supply (VDD) for proper memory array and logic operation. Only the I/O domain (VDDQ) supports 2.5 V or 3.3 V. Applying 2.5 V to VDD will result in functional failure and potential data loss.

How does the ZZ sleep mode affect timing and power consumption?

When ZZ is driven HIGH, the device enters non-time-critical sleep with data retention; core current drops to ≤5 mA (typical), and all outputs go high-impedance. No clock or timing constraints apply during sleep. Exit to active mode requires ZZ LOW followed by one valid CLK cycle before new accesses.

Is JTAG boundary scan available in the TQFP package?

No. JTAG pins (TCK, TMS, TDI, TDO) are only present in the 165-ball FBGA package. The 100-pin TQFP variant (like CY7C1380KV33-167AXC) omits these pins entirely; boundary scan functionality is unavailable in this package option.