MB1422A
MB1422A is DRAM Controller LSI manufactured by Fujitsu Semiconductor Limited.
MB 1422A
June 1986 Edition 1.0
DYNAMIC RAM CONTROLLER
The Fujitsu MB 1422A is a high performance DRAM controller LSI. The MB 1422A controls address multiplexing, refresh timing and their arbitration, and realizes one chip DRAM peripheral controller. The MB 1422A is designed to easily interface 64K and 256K DRAM to the system based on the 8086 or 68000. The MB 1422A is fabricated in an advanced low-power Schottky TTL process. The device is housed in a plastic 42-pin Dual In-line-Package, 42 pin shrink DIP, and 44-pin PLCC.
- 256k and 64k Dynamic-RAM control capability
- Directly addresses and drives up to 44 DRAMs without external drivers
- Internal/external refresh capability
- Supports 8086 (5MHz or 8M Hz) or 68000 (8MHz or 12.5MHz) type micro- processor
- +5V only schottky TTL technology for high performance
- Low power dissipation: 440m W Typ.
- TTL patible 1/0
- Standard 42 pin Plastic DIP (Suffix: -P)
- Standard 42 pin Plastic Shrink DIP (Suffix: -P)
- Standard 44 pin Plastic LCC (Suffix:...
