Infineon Technologies CYK001M16SCAU-70BAXI

Overview

CYK001M16SCAU-70BAXI from Cypress Semiconductor is a 16-Mbit pseudo-static RAM (PSRAM) organized as 1M × 16, supporting asynchronous memory interface with 70 ns read cycle time, 2.7–3.3 V supply, and MoBL® low-power architecture. It delivers 13 mA typical active current at f_MAX, 80 µA typical standby current (ISB2), and operates across −25°C to +85°C for industrial portable applications including cellular handsets and battery-powered embedded systems.

For engineers reviewing the CYK001M16SCAU-70BAXI datasheet, CYK001M16SCAU-70BAXI pinout, CYK001M16SCAU-70BAXI application, or CYK001M16SCAU-70BAXI equivalent, this PSRAM provides verified byte-selectable I/O (BHE/ BLE), automatic CE-controlled power-down, high-impedance tri-state outputs during deselect/write, and FBGA-48 packaging compatible with space-constrained mobile PCB layouts.

Technical Context

The CYK001M16SCAU-70BAXI implements a CMOS-based pseudo-SRAM architecture with integrated refresh logic, eliminating external DRAM controller complexity while retaining SRAM-like interface simplicity. Its dual chip enable (CE1/CE2) and byte-enable (BHE/ BLE) scheme enables flexible 8-bit or 16-bit data access without external glue logic.

It supports three distinct power states: active (CE1=L, CE2=H, WE=H, OE=L), output-disabled (OE=H), and automatic standby (CE1=H or CE2=L), with ISB2 ≤ 150 µA at 3.3 V. Timing is defined by tRC = 70 ns, tACE = 70 ns, and tDOE = 35 ns - all guaranteed over full industrial temperature and voltage range.

Key Specifications

Pinout & Package

Package: 48-ball Fine-Pitch BGA (BA48K), Pb-free, 0.5 mm pitch, 6.0 mm × 8.0 mm footprint, 1.2 mm height, with thermal pad exposed on bottom side.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar pseudo-static RAM applications.

Compared with IS61WV102416BLL-70TLI and W9812G6JH-75, the CYK001M16SCAU-70BAXI offers superior low-power performance (80 µA ISB2 vs. ≥100 µA), tighter voltage tolerance (2.7–3.3 V), and hardware-automated standby - making it optimal for battery-critical portable designs where thermal headroom and energy budget are constrained.

Availability

CYK001M16SCAU-70BAXI is available at Aetrix Electronics and suitable for cellular handset memory buffers, portable medical data loggers, industrial telematics recorders, and smart meter firmware caches requiring stable component supply across extended product lifecycles.

Supply support for CYK001M16SCAU-70BAXI 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 programmable system-on-chip (PSoC), memory, and USB solutions for embedded applications.

The MoBL® PSRAM product line was designed specifically for battery-constrained portable electronics, integrating self-refresh DRAM cells with SRAM-compatible control logic to reduce system-level power and board area.

FAQ

What is the minimum VCC required for reliable operation of CYK001M16SCAU-70BAXI?

The absolute minimum VCC is 2.7 V across the full industrial temperature range (−25°C to +85°C). Operation below 2.7 V risks timing violations, increased bit errors, and failure to enter or exit standby mode correctly. Cypress specifies all AC/DC parameters only within 2.7–3.3 V, and no characterization data exists below 2.7 V.

Does CYK001M16SCAU-70BAXI require an external clock or refresh signal?

No. This is a pseudo-static RAM with fully integrated self-refresh circuitry. It operates asynchronously using only CE, OE, WE, BHE, and BLE control signals - no external clock, RAS/CAS, or refresh controller is needed. The internal refresh is transparent and automatically triggered during idle cycles.

Can CYK001M16SCAU-70BAXI be used in a 32-bit data bus configuration?

No. It is strictly a 16-bit-wide device (1M × 16 organization) with dedicated I/O0–I/O15 pins. To implement 32-bit access, two devices must be used in parallel with shared address/control lines and separate byte-enable coordination - no native 32-bit mode or address mirroring is supported.

Is the 48-ball FBGA package of CYK001M16SCAU-70BAXI compatible with standard reflow profiles?

Yes. The Pb-free BA48K package complies with IPC/JEDEC J-STD-020D Level 3 moisture sensitivity and supports peak reflow temperatures up to 260°C. Recommended profile includes ramp-to-spike ≤3°C/s, time above 217°C of 60–150 s, and peak temperature of 235–245°C for optimal solder joint integrity and die attach reliability.