HB52R1289E22-B6B
HB52R1289E22-B6B is 1 GB Registered SDRAM DIMM 1 GB Registered SDRAM DIMM (36 pcs of 64 M 4 Components) PC100 SDRAM manufactured by Elpida Memory.
Description
The HB52R1289E22 belongs to 8-byte DIMM (Dual In-line Memory Module) family, and has been developed as an optimized main memory solution for 8-byte processor applications. The HB52R1289E22 is a 64M × 72 × 2-bank Synchronous Dynamic RAM Module, mounted 36 pieces of 256-Mbit SDRAM (HM5225405BTB) sealed in TCP package, 1 piece of PLL clock driver, 3 pieces register driver and 1 piece of serial EEPROM (2-kbit) for Presence Detect (PD). An outline of the HB52R1289E22 is 168-pin socket type package (dual lead out). Therefore, the HB52R1289E22 makes high density mounting possible without surface mount technology. The HB52R1289E22 provides mon data inputs and outputs. Decoupling capacitors are mounted beside TCP on the module board. Note: Do not push the cover or drop the modules in order to protect from mechanical defects, which would be electrical defects.
Features
- Fully patible with : JEDEC standard outline 8-byte DIMM : Intel PCB Reference design (Rev. 1.2)
- 168-pin socket type package (dual lead out) Outline: 133.37 mm (length) × 38.10 mm (Height) × 4.80 mm (Thickness) Lead pitch: 1.27 mm
- 3.3 V power supply
- Clock frequency: 100 MHz (max)
- LVTTL interface
- Data bus width: × 72 ECC
- Single pulsed RAS
- 4 Banks can operates simultaneously and independently
- Burst read/write operation and burst read/single write operation capability
- Programmable burst length: 1/2/4/8
Elpida Memory, Inc. is a joint venture DRAM pany of NEC Corporation and Hitachi, Ltd.
HB52R1289E22-A6B/B6B
- 2 variations of burst sequence Sequential Interleave
- Programmable CE latency : 3/4 (HB52R1289E22-A6B) : 4 (HB52R1289E22-B6B)
- Byte control by DQMB
- Refresh cycles: 8192 refresh cycles/64 ms
- 2 variations of refresh Auto refresh Self refresh
Ordering Information
Type No. HB52R1289E22-A6B HB52R1289E22-B6B Frequency 100 MHz 100 MHz CE latency 3/4 4 Package Contact pad 168-pin dual lead out socket type Gold
Pin Arrangement
1 pin 10 pin 11 pin
40 pin 41...