MT47H32M16NF-25E-AAT

Soneklerin Ayrıntılı İncelemesi

• MT47H: Micron DDR2 SDRAM product series
• 32M16NF: Memory organization = 32M × 16-bit, 84-ball FBGA footprint variant
• 25E: Speed grade (2.5ns core cycle, DDR2-800 / PC2-6400, max 800 MT/s data rate)
• AAT: Automotive extended temperature grade (-40°C ~ +105°C), tray packaging; tape reel version: MT47H32M16NF‑25E‑AAT:H‑TRMicron Technology

1. Core Memory Architecture

Density & Bank Layout

• Total capacity: 512Mb = 64MB physical storage
• Organization: 32M words × 16-bit wide data bus
• Internal bank configuration: 4 independent memory banks for concurrent read/write scheduling
• 4n prefetch DDR2 architecture, transfers 2 data words per clock edge (double data rate)
• Selectable burst length: 4 / 8 sequential burst modes

Timing & Speed Parameters

• Internal clock frequency: 400 MHz, double data I/O rate up to 800 MT/s
• Supported CAS latency: CL4, CL5, CL6 configurable via mode register
• Minimum cycle time: 2.5 ns, tRCD/tRP/tRAS timing optimized for high-speed embedded controllers
• 8192-cycle auto-refresh interval (64ms refresh window) for data retention

2. Electrical Interface Specifications

• Core supply VDD / VDDQ: 1.7 V ~ 1.9 V (nominal 1.8 V SSTL_18 I/O signaling)
• Separate VSS ground plane for analog/digital noise isolation
• Built-in On-Die Termination (ODT): Programmable 50Ω / 75Ω / 150Ω termination resistors to eliminate external line matching components
• Adjustable output drive strength to suppress EMI for automotive wiring environments
• Differential clock CK/CK# pair with high noise rejection

3. Reliability & Automotive Qualification

• AEC-Q100 Grade 3 qualified for automotive under-hood and cabin electronic control unitsMicron Technology
• Wide operating temperature range: -40°C to +105°C continuous operation
• MSL 3 nem duyarlılık seviyesi (yeniden akış lehimlemesinden önce 168 saatlik depolama ömrü)
• RoHS 3 lead-free, halogen-free and REACH SVHC compliant
• High latch-up immunity and ESD protection on all address, data and control balls
• JEDEC-compliant power-down, self-refresh and deep power-saving modes for low idle power consumption

4. Paket Bilgileri

• Package type: 84-ball FBGA surface mount
• Dimension: 8 mm × 12.5 mm compact footprint
• Ball pitch: 0.8 mm fine pitch for dense PCB layout
• Tray bulk packaging standard; tape-and-reel reel packaging available for mass automated SMT assembly

5. Key Functional Features

• Programmable mode registers to configure latency, burst length, ODT and drive strength
• Write data mask (DQM) pins for byte-level partial write operations on 16-bit bus
• Independent bank precharge and activate commands for flexible memory scheduling
• Self-refresh mode for battery-backed standby systems with ultra-low leakage current
• Compatible with all mainstream ARM Cortex-M/R/A, PIC, dsPIC, FPGA embedded memory controllers

Tipik Uygulamalar

• Automotive body control modules, infotainment, ADAS and instrument cluster ECUs
• Rugged industrial PLC, servo drive and motion control embedded systems
• Medical diagnostic equipment with real-time signal buffering
• Digital signage, POS payment terminals and portable data loggers
• FPGA-based industrial vision, communication gateway and network switch buffer memory
• Battery-powered rugged handheld test & measurement instruments
• Transportation monitoring, railway and heavy machinery control electronics