PGA Memory Controllers 7

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Part RoHS Manufacturer Peripheral IC Type Temperature Grade Terminal Form No. of Terminals Package Code Package Shape Package Body Material Surface Mount Maximum Supply Voltage Screening Level Address Bus Width Power Supplies (V) Package Style (Meter) Package Equivalence Code Minimum Supply Voltage Maximum Operating Temperature Minimum Operating Temperature Terminal Finish Terminal Position Maximum Seated Height Width Additional Features Boundary Scan External Data Bus Width Maximum Clock Frequency Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Length Technology Maximum Supply Current Nominal Supply Voltage Memory Organization No. of Banks Sub-Category Bus Compatibility Terminal Pitch JESD-30 Code Moisture Sensitivity Level (MSL) Qualification Low Power Mode JESD-609 Code

A82385-33

Intel

PIN/PEG

132

PGA

SQUARE

CERAMIC

NO

5

GRID ARRAY

PGA132,14X14

Tin/Lead (Sn/Pb)

PERPENDICULAR

CMOS

300 mA

5 V

Memory Controllers

2.54 mm

S-XPGA-P132

Not Qualified

e0

A82495DX50

Intel

OTHER

PIN/PEG

240

PGA

SQUARE

CERAMIC

NO

5

GRID ARRAY

PGA240,19X19

85 Cel

0 Cel

Tin/Lead (Sn/Pb)

PERPENDICULAR

600 mA

5 V

Memory Controllers

2.54 mm

S-XPGA-P240

Not Qualified

e0

UPD71641R

Renesas Electronics

PIN/PEG

132

PGA

CERAMIC

NO

GRID ARRAY

PGA132(UNSPEC)

Tin/Lead (Sn/Pb)

PERPENDICULAR

CMOS

Memory Controllers

Not Qualified

e0

UPD71641R-25

Renesas Electronics

PIN/PEG

132

PGA

CERAMIC

NO

GRID ARRAY

PGA132(UNSPEC)

Tin/Lead (Sn/Pb)

PERPENDICULAR

CMOS

Memory Controllers

Not Qualified

e0

L64850GC-33

Broadcom

COMMERCIAL

PIN/PEG

223

PGA

SQUARE

CERAMIC

NO

5

GRID ARRAY

PGA223,18X18

70 Cel

0 Cel

Tin/Lead (Sn/Pb)

PERPENDICULAR

CMOS

460 mA

5 V

Memory Controllers

2.54 mm

S-XPGA-P223

Not Qualified

e0

L64850GC-25

Broadcom

COMMERCIAL

PIN/PEG

223

PGA

SQUARE

CERAMIC

NO

5

GRID ARRAY

PGA223,18X18

70 Cel

0 Cel

Tin/Lead (Sn/Pb)

PERPENDICULAR

CMOS

350 mA

5 V

Memory Controllers

2.54 mm

S-XPGA-P223

Not Qualified

e0

L64850GC-40

Broadcom

COMMERCIAL

PIN/PEG

223

PGA

SQUARE

CERAMIC

NO

5

GRID ARRAY

PGA223,18X18

70 Cel

0 Cel

Tin/Lead (Sn/Pb)

PERPENDICULAR

CMOS

560 mA

5 V

Memory Controllers

2.54 mm

S-XPGA-P223

Not Qualified

e0

Memory Controllers

Memory controllers are specialized electronic circuits that manage the flow of data between a CPU and memory modules. These circuits are typically found on motherboards or embedded systems and are responsible for controlling the timing and data transfer rates between the CPU and memory modules.

Memory controllers are designed to work with specific types of memory modules, such as dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), or double data rate (DDR) memory. They are responsible for configuring the memory modules and managing the transfer of data between the CPU and memory.

Memory controllers use a variety of techniques to optimize the performance of memory access, including prefetching, pipelining, and cache management. Prefetching involves retrieving data from memory before it is requested by the CPU, while pipelining involves overlapping memory operations to reduce the latency of memory access. Cache management involves using on-chip cache memory to store frequently accessed data, reducing the need to access main memory.

Memory controllers are essential components of modern computer systems, as they play a critical role in determining the overall performance of the system. They are responsible for managing the flow of data between the CPU and memory modules, optimizing memory access, and ensuring the reliability and stability of the system.