Infineon Technologies CY2310ANZPVXC-1T

Overview

CY2310ANZPVXC-1T from Cypress Semiconductor is a 3.3V, 10-output SDRAM clock buffer optimized for mobile PC motherboards supporting up to four SO-DIMM modules. It features serial interface control (SDATA/SCLK), dedicated OE pin, low output skew (≤250 ps), and operates up to 100 MHz with 3.3V supply. Used with CY2281 clock synthesizers in Pentium II®-based systems.

For engineers reviewing the CY2310ANZPVXC-1T datasheet, CY2310ANZPVXC-1T pinout, CY2310ANZPVXC-1T application, or CY2310ANZPVXC-1T equivalent, key selection criteria include SDRAM byte-clock distribution capability, per-output enable/disable via serial interface, 28-pin SSOP package footprint, and compatibility with 66.67–100 MHz SDRAM timing requirements in space-constrained mobile platforms.

Technical Context

The CY2310ANZPVXC-1T implements a single-input, ten-output fanout buffer architecture with three distinct SDRAM clock groups: eight outputs (SDRAM0–SDRAM7) assigned to two byte lanes across four SO-DIMMs, plus two dedicated feedback outputs (SDRAM8/SDRAM9). All outputs are CMOS-compatible and internally terminated.

Its serial configuration interface uses SDATA and SCLK pins with VDDIIC/VSSIIC power domain, enabling per-output enable/disable control through three 8-bit registers. The OE pin provides hardware-level three-state control independent of serial programming, supporting ATE test modes and system-level clock gating.

Key Specifications

Pinout & Package

Package: 28-pin Shrunk Small Outline Package (SSOP), 5.3 mm body width, lead-free (Pb-free) finish, tape-and-reel packaging (–1T suffix).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar SDRAM clock buffer applications.

Compared with ICS557GI-100LF and PI74ALVC164245AEX, the CY2310ANZPVXC-1T uniquely delivers programmable per-output control, sub-250 ps skew, and integrated feedback outputs-critical for reliable four-SO-DIMM operation in mobile PC platforms where layout density and timing margin are constrained.

Availability

CY2310ANZPVXC-1T is available at Aetrix Electronics and suitable for mobile PC memory subsystems, Pentium II® motherboard refurbishment, and SO-DIMM test fixture development requiring stable component supply and RoHS-compliant packaging.

Supply support for CY2310ANZPVXC-1T 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 Corporation, headquartered in San Jose, CA, designs high-performance mixed-signal ICs for computing, communications, and consumer electronics with emphasis on timing, memory interface, and programmable solutions.

The CY2310ANZ product line targets mobile and embedded memory subsystems, delivering low-skew, configurable clock distribution specifically for SDRAM-based architectures in space- and power-constrained platforms.

FAQ

What is the function of the VDDIIC and VSSIIC pins?

VDDIIC (Pin 13) and VSSIIC (Pin 16) supply dedicated power and ground to the serial interface circuitry. This isolation prevents noise from the main clock distribution domain from corrupting serial configuration data, ensuring reliable register writes even during high-frequency SDRAM operation.

Can the CY2310ANZPVXC-1T drive DDR SDRAM modules?

No. The CY2310ANZPVXC-1T is specified for SDR SDRAM only, with timing parameters aligned to PC66/PC100/PC133 standards. It lacks the dual-edge triggering, differential signaling, or impedance control required for DDR, DDR2, or later generations.

How does the serial interface interact with the OE pin?

The OE pin operates independently of the serial interface: when OE is LOW, all outputs go high-impedance regardless of serial register settings. When OE is HIGH, output states follow the serial configuration. This enables hardware override for test or safe power-down without serial bus access.

What is the recommended termination for SDRAM clock traces driven by this device?

Cypress recommends series termination at the buffer output, using Rseries > (Rtrace – 25Ω), where Rtrace is the loaded characteristic impedance of the PCB trace. A 0.1 µF ceramic capacitor must be placed near each VDD pin, and optional 4.7–22 pF EMI-reduction capacitors may be added close to terminators.