Infineon Technologies CY7C1460KV25-250BZC

Overview

CY7C1460KV25-250BZC from Cypress Semiconductor is a 36-Mbit (1M × 36) synchronous pipelined SRAM with NoBL™ architecture, ECC support, 2.5 V core/I/O supply, and 250 MHz zero-wait-state operation. It delivers 2.5 ns clock-to-output timing, full input/output registration, and byte-write capability for high-throughput memory buffering in telecom line cards and packet-switching ASIC interfaces.

For engineers reviewing the CY7C1460KV25-250BZC datasheet, CY7C1460KV25-250BZC pinout, CY7C1460KV25-250BZC application, or CY7C1460KV25-250BZC equivalent, this device supports back-to-back read/write transitions without latency, integrates on-chip ECC for SER reduction, and provides JEDEC-compliant 100-pin TQFP packaging with JTAG boundary scan.

Technical Context

This SRAM implements fully registered synchronous interface logic: all address, control, and data inputs are latched on the rising edge of CLK, and all outputs pass through output registers synchronized to CLK. The NoBL™ architecture eliminates bus latency by enabling true consecutive read/write operations - each clock cycle transfers valid data without wait states.

It features synchronous self-timed writes, burst capability (linear/interleaved), IEEE 1149.1 JTAG boundary scan, and "ZZ" sleep mode. On-chip ECC encodes/decodes parity across DQa–DQd and DQPa–DQPd lines to detect and correct single-bit errors, reducing soft error rate in radiation-sensitive environments.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch), Pb-free, JEDEC-standard footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2115L10PF and IS61WV102436B, CY7C1460KV25-250BZC uniquely combines 250 MHz zero-wait-state operation with on-chip ECC in a JEDEC-standard package - making it the only option meeting NEBS-compliant telecom switching and radar signal integrity requirements.

Availability

CY7C1460KV25-250BZC is available at Aetrix Electronics and suitable for telecom infrastructure, network processor interfacing, radar signal buffering, and industrial real-time logging requiring stable component supply and long-term lifecycle assurance.

Supply support for CY7C1460KV25-250BZC 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 demanding embedded systems, with focus on reliability, low power, and system-level integration.

CY7C1460KV25 belongs to the NoBL™ SRAM product line, engineered specifically for zero-latency, high-bandwidth buffering in telecom, networking, and defense applications where deterministic timing and data integrity are mandatory.

FAQ

Does CY7C1460KV25-250BZC support both linear and interleaved burst modes?

Yes. The MODE pin selects burst order: logic HIGH configures linear addressing (A0–A19 increment sequentially), while LOW enables interleaved addressing (bit-reversed LSB toggling). This flexibility supports both cache-line-aligned and DSP-friendly memory access patterns without external logic.

How does the "ZZ" sleep mode reduce power consumption?

When ZZ is asserted LOW, the device enters low-power sleep mode drawing ≤50 µA typical standby current. Internal clocks and array biasing are gated, but data retention is maintained across the full industrial temperature range (–40°C to +85°C) without external refresh.

Can CY7C1460KV25-250BZC operate with mixed voltage supplies?

No. It requires a single 2.5 V ±0.2 V supply for both core logic and I/O. VDD and VDDQ must be tied together and decoupled with 0.1 µF ceramic capacitors per power pin - mixing voltages violates absolute maximum ratings and risks latch-up.

Is JTAG boundary scan functional without external programming hardware?

Yes. IEEE 1149.1 TAP operates independently of memory function: TCK/TMS/TDI/TDO pins enable full interconnect testing and register visibility even when the SRAM is deselected or in ZZ mode - no external programmer required for board-level continuity checks.