HBM4 VIP

Simulation

Benefits Compliance and Compatibility Request a Datasheet

Overview

SmartDV’s HBM4 Verification IP is a comprehensive solution for verifying High Bandwidth Memory 4 interfaces, delivering up to 2 TB/s per stack across a 2048-bit interface for the most demanding AI training, HPC, and data center memory bandwidth requirements. Fully compliant with JEDEC JESD270-4 (updated December 2025) and backward compatible with HBM3 controllers, it supports complete verification of HBM4 device components across up to 32 channels per device with 2 pseudo-channels per channel, 24 Gb to 32 Gb layer densities supporting 4-high to 16-high stack configurations up to 64 GB per stack, covering pseudo-channel mode operation with 32 DQ width, semi-independent row and column command interfaces, 1KB page size per pseudo-channel, Directed Refresh Management, command and address parity, data parity, DBIac, WDQS-to-CK training, and IEEE 1500 standard test access.

SmartDV’s HBM4 VIP supports UVM, SystemVerilog, and Verilog, and integrates seamlessly into diverse verification environments. It is simulator-independent and compatible with all leading EDA simulators, providing flexibility across simulation platforms.

With comprehensive bank group support, Directed Refresh Management for row-hammer mitigation, enhanced RAS features, flexible voltage configuration, HBM3 controller backward compatibility, bus-accurate timing for all delay ranges, built-in functional coverage, and a complete test suite, SmartDV’s HBM4 VIP enables verification teams to thoroughly validate HBM4 memory interface designs for next-generation AI training accelerators, Nvidia Rubin and AMD MI400-class GPUs, hyperscale data centers, and bandwidth-intensive HPC applications.

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HBM4 VIP

Benefits

Full HBM4 Device Support – Supports complete HBM4 device verification per JEDEC JESD270-4 across up to 32 channels per device with 2 pseudo-channels per channel, 64 DQ width with optional ECC pin support per channel, 24 Gb to 32 Gb layer densities supporting 4-high to 16-high stack configurations up to 64 GB per stack, programmable clock frequency of operation, and all HBM4 commands as per specification.
Pseudo-Channel Mode and Semi-Independent Interface – Supports pseudo-channel mode operation with 32 DQ width per pseudo-channel, 2 pseudo-channels per channel, semi-independent row and column command interfaces, and 1KB page size per pseudo-channel for improved concurrency and reduced contention.
Bank Group and Timing Support – Supports bank grouping with 16, 32, 48, and 64 banks per channel based on device density and channel configuration, programmable READ/WRITE latency timings, burst length 8, DBIac write and read, WDQS-to-CK training, and bus-accurate timing for minimum, maximum, and typical values.
Directed Refresh Management and RAS – Supports Directed Refresh Management for enhanced row-hammer mitigation, command and address parity, data parity, write data strobe features, and comprehensive RAS verification including reliability, availability, and serviceability features as defined in JESD270-4.
HBM3 Controller Backward Compatibility – Supports backward compatibility with existing HBM3 controllers enabling a single controller to operate with both HBM3 and HBM4, flexible vendor-specific voltage configurations including VDDQ at 0.7V, 0.75V, 0.8V, or 0.9V and VDDC at 1.0V or 1.05V.
Power Management – Supports self-refresh modes, power down features, and input clock stop and frequency change for complete power state verification across all HBM4 operating configurations.
IEEE 1500 and Protocol Checking – Supports IEEE standard 1500 test access, continuous bus-accurate monitoring covering power-on, initialization, power-off rules, state-based rules, active command rules, read and write command rules, and all timing violations, with protocol checker fully compliant with JESD270-4.
Complete Verification Infrastructure – Provides built-in functional coverage analysis, constraints randomization, and callbacks for user access to command data and monitor-observed data across all HBM4 protocol conditions.

Compliance and Compatibility

Fully compliant with JEDEC JESD270-4 (HBM4, updated December 2025)
Backward compatible with HBM3 controllers per JESD270-4 compatibility specification
Supports up to 32 channels per device with 2 pseudo-channels per channel
Supports 4-high to 16-high stack configurations with 24 Gb to 32 Gb die densities up to 64 GB per stack
Compatible with UVM, OVM, VMM, SystemVerilog, and Verilog verification environments
Compatible with all major EDA simulators including Synopsys VCS, Cadence Xcelium, Siemens Questa, Aldec Riviera-PRO, and Verilator

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