Infineon Technologies CY7C1370KV33-167AXC

Overview

CY7C1370KV33-167AXC from Cypress Semiconductor is a 18-Mbit (512K × 36) synchronous pipelined SRAM with NoBL™ architecture and on-chip ECC, designed for high-throughput memory subsystems in networking and telecom line cards. It operates at 167 MHz with 3.4 ns max access time, supports 3.3 V core and 3.3 V/2.5 V I/O supplies, and delivers zero-wait-state back-to-back read/write operations.

For engineers reviewing the CY7C1370KV33-167AXC datasheet, CY7C1370KV33-167AXC pinout, CY7C1370KV33-167AXC application, or CY7C1370KV33-167AXC equivalent, key selection criteria include burst order configuration (linear/interleaved), byte-write granularity (four 9-bit groups), JTAG boundary-scan support, ZZ sleep mode timing, and ECC error correction capability for SER reduction.

Technical Context

This SRAM implements fully registered synchronous interfaces: all address, control, and data inputs are latched on the rising edge of CLK, and all outputs are driven from output registers clocked by the same edge. The internal NoBL™ logic eliminates bus latency by enabling true consecutive read/write cycles without wait states.

Burst operation is configurable via the MODE strap pin (interleaved or linear), and write sequencing uses synchronous self-timed circuitry with four independent byte-write enables (BWa–BWd) controlling DQa–DQd and corresponding parity pins DQPa–DQPd. ECC encoding/decoding is performed on-chip to detect and correct single-bit errors.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 × 20 × 1.4 mm), Pb-free, JEDEC-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2115L16PF and IS61WV102436BLL-167TQLI, CY7C1370KV33-167AXC uniquely combines ECC, ZZ sleep, JTAG, and dual-voltage I/O in a 512K × 36 package - critical for telecom infrastructure where reliability, testability, and power management are non-negotiable.

Availability

CY7C1370KV33-167AXC is available at Aetrix Electronics and suitable for telecom line cards, network packet buffers, and base station controllers requiring stable component supply across extended product lifecycles.

Supply support for CY7C1370KV33-167AXC 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, microcontrollers, and programmable solutions for industrial and communications markets.

CY7C1370KV33 belongs to Cypress's NoBL™ SRAM product line, engineered specifically for zero-latency, ECC-protected memory subsystems in carrier-grade networking and wireless infrastructure equipment.

FAQ

What is the function of the MODE pin on CY7C1370KV33-167AXC?

The MODE pin is a static strap input that selects burst addressing order: HIGH configures interleaved burst (e.g., 0, 2, 4, 6… then 1, 3, 5, 7…), LOW selects linear burst (0, 1, 2, 3…). It must be stable before device initialization and cannot change during operation. Floating defaults to HIGH for interleaved mode.

Does CY7C1370KV33-167AXC support 2.5 V I/O operation?

Yes - VDDQ accepts either 2.5 V or 3.3 V, allowing direct interface with 2.5 V logic families without level shifters. Core VDD remains fixed at 3.3 V. AC timing parameters (e.g., tAC, tOH) are specified separately for each VDDQ condition in the datasheet.

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

In ZZ mode (pin driven HIGH), ICC drops to ≤10 µA while retaining full memory contents. Wake-up is asynchronous: data becomes valid within tZZH (max 20 ns) after ZZ returns LOW, with no clock cycles required. The internal pipeline state is preserved.

Can CY7C1370KV33-167AXC operate without using the JTAG interface?

Yes - JTAG is optional and disabled by default. TDI, TMS, TCK, and TDO pins function as no-connects unless enabled via the JTAG instruction register. No external pull-ups/downs or configuration fuses are needed for standard SRAM operation.