Cypress Semiconductor Corp CY7C1370KV33-167BZXC

Overview

CY7C1370KV33-167BZXC from Cypress Semiconductor is a 18-Mbit (512K × 36) pipelined synchronous 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 access time, supports zero-wait-state back-to-back read/write cycles, and uses 3.3 V core (VDD) and 3.3 V/2.5 V I/O (VDDQ) supplies.

For engineers reviewing the CY7C1370KV33-167BZXC datasheet, CY7C1370KV33-167BZXC pinout, CY7C1370KV33-167BZXC application, or CY7C1370KV33-167BZXC equivalent, key selection factors include its 100-pin TQFP package, synchronous self-timed write control, byte-write capability across four 9-bit data groups (DQa–DQd + DQPa–DQPd), and JTAG-compliant boundary scan support for system-level testability.

Technical Context

This SRAM implements fully registered pipelined operation: all address, control, and data inputs are latched on the rising edge of CLK, and all outputs are driven through output registers synchronized to the same clock edge. The internal burst logic supports both linear and interleaved burst orders, selected via the MODE strap pin.

It integrates on-chip ECC encoding/decoding to detect and correct single-bit errors, reducing soft error rate in radiation-sensitive environments. Synchronous self-timed writes eliminate external write pulse timing constraints, while the ZZ sleep input provides asynchronous power-down control independent of clock state.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 mm × 20 mm × 1.4 mm), RoHS-compliant, surface-mount.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed pipelined SRAM applications.

Compared with AS7C331024B-167BIN and IS61WV102436BLL-167TQLI, CY7C1370KV33-167BZXC uniquely delivers ECC protection and JTAG testability in the same 100-pin TQFP footprint-critical for telecom and defense applications where field reliability and production test coverage are mandatory.

Availability

CY7C1370KV33-167BZXC is available at Aetrix Electronics and suitable for telecom line cards, network packet buffers, radar signal processing, and industrial PLC memory modules requiring stable component supply across extended product lifecycles.

Supply support for CY7C1370KV33-167BZXC 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 connectivity solutions for industrial, automotive, and communications markets.

CY7C1370KV33-167BZXC belongs to Cypress's NoBL™ SRAM product line, engineered specifically for deterministic, low-latency memory subsystems in infrastructure equipment where bus efficiency and data integrity are non-negotiable.

FAQ

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

The MODE pin is a strap input that configures burst address sequencing: tied HIGH it selects interleaved burst order, pulled LOW it selects linear burst order. It must be held static during operation and defaults to HIGH if left floating-ensuring predictable boot-time behavior without external configuration logic.

Does CY7C1370KV33-167BZXC require external termination resistors on DQ lines?

No. The device incorporates programmable output drive strength and on-die termination (ODT) support via internal impedance control circuitry, eliminating the need for discrete series or parallel termination resistors on data bus traces-reducing BOM count and PCB area.

How does the ZZ pin interact with CEN and clock gating?

ZZ is asynchronous and overrides all clock-domain logic: asserting ZZ HIGH forces immediate entry into low-power sleep mode regardless of CEN or CLK state. Unlike CEN-which extends the current cycle-ZZ disables internal clocks, memory array biasing, and I/O drivers, reducing ICC to <100 µA.

Can CY7C1370KV33-167BZXC operate with 2.5 V VDDQ while using 3.3 V VDD?

Yes. The device supports mixed I/O voltage operation: VDD must be 3.3 V ± 0.3 V, while VDDQ may be independently set to either 3.3 V or 2.5 V to interface with corresponding FPGA/ASIC I/O banks-verified per AC/DC electrical specifications in the datasheet.