Infineon Technologies CY7C1462KVE33-167AXC

Overview

CY7C1462KVE33 from Cypress Semiconductor is a 36-Mbit (2M × 18) synchronous pipelined SRAM with NoBL™ architecture, on-chip ECC, and 167 MHz operation. It delivers zero wait-state back-to-back read/write cycles, 3.3-V core/2.5-V I/O supply support, and JEDEC-standard 165-ball FBGA packaging. Used in high-throughput networking line cards for packet buffering with SER mitigation.

For engineers reviewing the CY7C1462KVE33 datasheet, CY7C1462KVE33 pinout, CY7C1462KVE33 application, or CY7C1462KVE33 equivalent, key selection criteria include burst order configuration (linear/interleaved), byte-write granularity (BWa–BWb only), ECC-enabled data integrity, and 167 MHz timing compliance in 2M × 18 mode.

Technical Context

This SRAM implements fully registered synchronous interfaces: all address, control, and data inputs are latched on the rising edge of CLK, and outputs are driven from output registers synchronized to CLK. The internal burst counter advances on ADV/LD HIGH, supporting linear or interleaved addressing per MODE strap.

Write operations are self-timed and synchronous-no external write pulse timing constraints-while OE remains asynchronous but masked during write data phases. ECC encoding/decoding occurs on-chip, correcting single-bit errors and detecting double-bit errors without CPU intervention.

Key Specifications

Pinout & Package

Package: 165-ball Fine-Pitch Ball Grid Array (FBGA), JEDEC-standard, Pb-free, 13 mm × 15 mm footprint, 1.0 mm ball pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV204818BLL-167BLI and MT48LC32M16A2P-6A:G, the CY7C1462KVE33 uniquely combines 167 MHz NoBL™ throughput, on-die SEC-DED ECC, and synchronous self-timed writes - making it irreplaceable where deterministic latency and radiation-hardened reliability are co-required.

Availability

CY7C1462KVE33 is available at Aetrix Electronics and suitable for telecom line card buffering, avionics data recorders, and industrial PLC motion control buffers requiring stable component supply across extended production lifecycles.

Supply support for CY7C1462KVE33 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) designs high-performance memory and programmable solutions for mission-critical embedded systems.

The CY7C146x family targets high-speed, zero-latency buffering in networking, test equipment, and aerospace applications where deterministic timing and data integrity are non-negotiable.

FAQ

What is the function of the MODE pin on CY7C1462KVE33?

The MODE pin configures burst address sequencing: pulled HIGH (or left floating) selects interleaved burst order; pulled LOW selects linear burst order. It must remain static during device operation and is sampled only at power-up or reset. This setting directly determines how consecutive addresses increment during burst accesses, aligning with host processor expectations.

Does CY7C1462KVE33 support 1M × 36 organization?

No. CY7C1462KVE33 is exclusively a 2M × 18 device. The "1M × 36" configuration is supported only by CY7C1460KV33 and CY7C1460KVE33 variants. Pinout, byte-write signal count (BWs), and internal address decoding differ - CY7C1462KVE33 has only BWa and BWb, not BWc/BWd, confirming its 2M × 18 identity.

How does the on-chip ECC operate during read cycles?

During every read, the ECC decoder checks the associated parity bits (DQPa–DQPb). If a single-bit error is detected in the 18-bit data word, it is corrected transparently before output register latching; the corrected data appears at DQa–DQb on the next clock edge. A double-bit error triggers an uncorrectable error flag (not exposed externally), and uncorrected data is output - system-level error reporting must be implemented separately.

Can CE2 be used as an active-LOW enable like CE1 and CE3?

No. CE2 is defined as active HIGH per the datasheet pin definition and truth table. Using it as active LOW violates timing and functional specifications. Correct bank selection requires CE1 and CE3 asserted LOW while CE2 is asserted HIGH - this three-signal combination ensures proper device enable/disable behavior and avoids partial selection glitches.