74F189A Description
The 74F189A is a high speed, 64-bit RAM organized as a 16-word by 4-bit array.
74F189A Key Features
- High speed performance
- Replaces 74F189
- Address access time: 8ns max vs 28ns for 74F189
- Power dissipation: 4.3mW/bit
- Schottky clamp TTL
- One chip enable
- Inverting outputs (for non-inverting outputs see 74F219A)
- 3-State outputs
- 74F189A in 150 mil wide SO is preferred options for new designs