Alliance Memory AS4C128M16D2A-25BCN, SDRAM 2Gbit Surface Mount, 400MHz, 1.7 V to 1.9 V, 84-Pin FBGA

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Subtotal (1 unit)*

£9.45

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£11.34

(inc. VAT)

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  • Plus 55 unit(s) shipping from 17 November 2025
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1 - 9£9.45
10 - 24£8.76
25 - 49£8.55
50 - 99£8.51
100 +£7.48

*price indicative

Packaging Options:
RS Stock No.:
230-8410
Mfr. Part No.:
AS4C128M16D2A-25BCN
Brand:
Alliance Memory
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Brand

Alliance Memory

Memory Size

2Gbit

SDRAM Class

DDR2

Organisation

128M x 16

Data Rate

400MHz

Data Bus Width

16bit

Address Bus Width

13bit

Number of Bits per Word

16bit

Maximum Random Access Time

12.5ns

Mounting Type

Surface Mount

Package Type

FBGA

Pin Count

84

Dimensions

8.1 x 12.5 x 1.2mm

Height

1.2mm

Length

8.1mm

Maximum Operating Temperature

+85 °C

Minimum Operating Supply Voltage

1.7 V

Maximum Operating Supply Voltage

1.9 V

Width

12.5mm

Minimum Operating Temperature

0 °C

The Alliance Memory 2Gb DDR2 is a high-speed CMOS Double-Data- Rate-Two (DDR2), synchronous dynamic random - access memory (SDRAM) containing 2048 Mbits in a 16- bit wide data I/Os. It is internally configured as a 8-bank DRAM, 8 banks x 16Mb addresses x 16 I/Os. The device is designed to comply with DDR2 DRAM key features such as posted CAS# with additive latency, Write latency = Read latency -1, Off-Chip Driver (OCD) impedance adjustment, and On Die Termination(ODT).

8 internal banks for concurrent operation
4-bit prefetch architecture
Internal pipeline architecture
Precharge & active power down
Programmable Mode & Extended Mode registers

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