Infineon Technologies CY62156HSL-45BVXI

Overview

CY62156HSL-45BVXI from Infineon Technologies is a 8 Mbit (1024K × 8) asynchronous CMOS static RAM with parallel interface, 45 ns access time, 3.3 V supply voltage, and industrial temperature range (–40°C to +85°C). It serves as main memory or buffer in embedded controllers requiring fast, non-refreshed volatile storage.

For engineers reviewing the CY62156HSL-45BVXI datasheet, CY62156HSL-45BVXI pinout, CY62156HSL-45BVXI application, or CY62156HSL-45BVXI equivalent, key selection criteria include access time consistency across temperature, low active power (70 mA max), V_CC tolerance (3.0–3.6 V), and VFBGA-48 package compatibility with high-density PCB layouts.

Technical Context

This SRAM implements full static operation-no clock or refresh required-and uses TTL-compatible inputs with internal latching for address and data hold. It supports byte-wide (x8) data organization with independent CE1̅/CE2̅ chip enable logic and OE̅/WE̅ controlled read/write cycles.

Designed for deterministic timing, it guarantees t_AA = 45 ns, t_OE = 35 ns, and t_HZ = 10 ns output hold time under worst-case industrial conditions. Standby current is specified at ≤100 μA at V_CC = 3.3 V and T_A = 85°C.

Key Specifications

Pinout & Package

48-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA) with 0.8 mm ball pitch, 6 mm × 8 mm body, and JEDEC MO-276AB compliant footprint. RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY62156HSL-45BVXI, the CY62157EV30LL-45BVXI adds 2.5 V I/O compatibility at identical speed and power, while the IS61LV10248AL-10TLI trades industrial qualification and ultra-low standby for lower unit cost in benign environments.

Availability

CY62156HSL-45BVXI is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging subsystems, network packet buffers, and automotive body control modules requiring stable component supply over extended production lifecycles.

Supply support for CY62156HSL-45BVXI 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 German semiconductor manufacturer specializing in power management, automotive ICs, security solutions, and memory products with global manufacturing and quality certification.

CY62156HSL belongs to Infineon's high-reliability parallel SRAM product line, designed for deterministic, low-latency memory in mission-critical industrial and automotive control systems.

FAQ

What is the maximum clock frequency supported by CY62156HSL-45BVXI?

CY62156HSL-45BVXI is an asynchronous SRAM and does not use a clock signal. Its timing is governed by access time (t_AA = 45 ns) and cycle time (t_RC = 85 ns), enabling reliable operation with bus frequencies up to 11.8 MHz for consecutive reads. System timing must satisfy setup/hold requirements relative to CE̅, OE̅, and WE̅ edges.

Does CY62156HSL-45BVXI support battery backup or data retention during power loss?

No. CY62156HSL-45BVXI is a volatile SRAM and loses all stored data when V_CC drops below 1.5 V or is removed. It does not integrate battery-switching circuitry, capacitive hold-up, or nonvolatile backup. External battery-backed SRAM controllers or NVSRAM alternatives are required for data retention.

Can CY62156HSL-45BVXI be used in place of a 1M × 8 SRAM with 55 ns access time?

Yes, provided system timing margins accommodate its faster 45 ns access. The device meets all functional and pinout requirements of 1M × 8 parallel SRAMs, including CE1̅/CE2̅ dual-enable logic and byte-wide I/O. However, verify that OE̅/WE̅ pulse widths and address setup/hold times comply with the 45 ns spec, as tighter timing may require PCB trace length tuning.

Is the VFBGA-48 package of CY62156HSL-45BVXI compatible with standard reflow profiles?

Yes. The part is qualified for IPC/JEDEC J-STD-020D reflow profile with peak temperature of 260°C (±5°C) and time above liquidus of 60–150 seconds. Its VFBGA construction uses SnAgCu solder balls and passes moisture sensitivity level 3 (MSL-3) requirements when sealed per J-STD-033.