Infineon Technologies CY7C1382KV33-167AXC

Overview

CY7C1382KV33-167AXC from Cypress Semiconductor is a 18-Mbit synchronous pipelined SRAM organized as 1M × 18, operating at 167 MHz with 3.3 V core and 2.5/3.3 V I/O supplies. It features registered inputs/outputs, synchronous self-timed write, asynchronous output enable, and ZZ sleep mode. Used in high-speed secondary cache subsystems for RISC processors requiring burst-mode memory access.

For engineers reviewing the CY7C1382KV33-167AXC datasheet, CY7C1382KV33-167AXC pinout, CY7C1382KV33-167AXC application, or CY7C1382KV33-167AXC equivalent, key selection criteria include burst address sequencing (linear/interleaved), byte-write control granularity (BWA–BWD + BWE), three-chip-enable depth expansion, and TQFP-100 package compatibility with JEDEC-standard I/O voltage flexibility.

Technical Context

This SRAM implements a two-bit synchronous wraparound burst counter controlled by ADV, ADSP, and ADSC inputs to generate sequential addresses during burst reads/writes. All synchronous signals-including A[1:0], CE1/CE2/CE3, BWX, BWE, GW, and CLK-are registered on the rising edge of CLK.

It supports dual-burst initiation modes: processor-initiated (ADSP) and controller-initiated (ADSC), with priority given to ADSP when both are active. Output data is registered and clocked out with tCO = 3.4 ns (max), enabling deterministic timing in synchronous bus architectures.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV102418BLL-167BLI and MT55LCS018A-167B1, CY7C1382KV33-167AXC provides unique configurability in burst ordering, dual-address-strobe initiation, and low-power ZZ mode-critical for adaptive cache and real-time control designs.

Availability

CY7C1382KV33-167AXC is available at Aetrix Electronics and suitable for processor cache interfaces, network packet buffers, industrial motion controllers, and ATE pattern memory applications requiring stable component supply and long-term obsolescence management.

Supply support for CY7C1382KV33-167AXC 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, PSoC programmable systems-on-chip, and USB/USB-C solutions.

The CY7C138xKV33 product line was designed specifically for high-bandwidth, low-latency synchronous cache and buffer applications in networking, computing, and industrial control systems requiring deterministic burst access and flexible voltage operation.

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-must remain stable during operation and cannot be toggled dynamically. Internal pull-up ensures safe default behavior if left unconnected.

Does CY7C1382KV33-167AXC support both 2.5 V and 3.3 V I/O simultaneously?

No. VDDQ must be set to either 2.5 V or 3.3 V-not both-and must match the voltage level of the connected controller or FPGA I/O bank. The device does not support mixed-voltage I/O on a single interface; VDDQ is a single-supply rail for all DQ/DQP pins.

How does the ZZ sleep mode affect data retention and wake-up timing?

In ZZ mode (pin HIGH), the device enters a non-time-critical sleep state with full data retention and reduced current draw (~20 µA typical). Wake-up occurs synchronously on the next rising CLK edge after ZZ returns LOW; no additional stabilization delay is required before issuing commands.

Can ADSP and ADSC be used concurrently, and what happens if both are asserted?

ADSP and ADSC are mutually exclusive: when both are asserted LOW, only ADSP is recognized and processed. ADSC is ignored in that condition. This prioritization ensures deterministic address capture in systems where both processor and controller may attempt burst initiation.