Manufacturer

Samsung Semiconductor

Part Number

M391A5143EB1-CPBQ

Memory Type

DDR4 SDRAMCapacity4GB (1x4GB module)

Bus Speed/Transfer Rate

PC4-17000 (DDR4-2133MHz, 2133 MT/s, JEDEC standard); PC4-2133P equivalent

Form Factor

288-pin Unbuffered DIMM (UDIMM), ECC-enabled

Error Correction

ECC (Error-Correcting Code, 72-bit wide: 64 data+8 ECC bits)

Rank Configuration

Single Rank, x8 (1Rx8)

CAS Latency (CL)

15 (JEDEC standard timing for DDR4-2133 ECC UDIMM)

Key Timings

15-15-15 (CL-tRCD-tRP, typical); tRAS=36, tRC=51, tCK=9.375ns

Operating Voltage

1.2V (Standard DDR4 Voltage, non-LV variant)

Module Organization

512M × 72 (ECC-enabled, matches 4GB total capacity)

Component Composition

9x FBGA (78-ball) 512M × 8 DRAM chips (8 data+1 ECC per rank)

Chip Package

FBGA (Fine-Pitch Ball Grid Array, standard DDR4 package)

Refresh Cycle

64ms, 8192 cycles (JEDEC standard DDR4 refresh)

Compliance

JEDEC DDR4 standard, RoHS compliant, Lead-Free, SPD (Serial Presence Detect) EEPROM, Gold edge contacts

Application

Desktop/Server/Workstation supporting 288-pin DDR4 UDIMM with ECC at 2133MHz