AVR200412
AVR200412 is DDR2 SDRAM manufactured by A-LINK.
- Part of the AVR201628-A comparator family.
- Part of the AVR201628-A comparator family.
DDR2 SDRAM AVR201628 (128M X 16 ) AVR200856 (256M X 8 ) AVR200412 (512M X 4 )
Features
- VDD = +1.8V ±0.1V, VDDQ = +1.8V ±0.1V
- JEDEC-standard 1.8V I/O (SSTL_18-patible)
- Differential data strobe (DQS, DQS#) option
- 4n-bit prefetch architecture
- Duplicate output strobe (RDQS) option for x8
- DLL to align DQ and DQS transitions with CK
- 8 internal banks for concurrent operation
- Programmable CAS latency (CL)
- Posted CAS additive latency (AL)
- WRITE latency = READ latency
- 1 t CK
- Programmable burst lengths: 4 or 8
- Adjustable data-output drive strength
- 64ms, 8192-cycle refresh
- On-die termination (ODT)
- Industrial temperature (IT) option
- Ro HS-pliant
- Supports JEDEC clock jitter specification
Table 1: Key Timing Parameters
Options1
Marking
- Configuration
- 512 Meg x 4 (64 Meg x 4 x 8 banks)
512M4
- 256 Meg x 8 (32 Meg x 8 x 8 banks)
256M8
- 128 Meg x 16 (16 Meg x 16 x 8...
