高性能Impact -X PAL电路 HIGH-PERFORMANCE IMPACT-X PAL CIRCUITS
description
These programmable array logic devices feature high speed and functional equivalency when compared with currently available devices. These IMPACT-X circuits combine the latest Advanced Low-Power Schottky technology with proven titanium-tungsten fuses to provide reliable, high-performance substitutes for conventional TTL logic. Their easy programmability allows for quick design of custom functions and typically results in a more compact circuit board. In addition, chip carriers are available for futher reduction in board space.
• High-Performance Operation:
fmax no feedback
BPAL20R’ . . . 71.4 MHz
fmax internal feedback
TIBPAL20R’ . . . 58.8 MHz
fmax external feedback
TIBPAL20R’ . . . 55.5 MHz
Propagation Delay
TIBPAL20’ . . . 10 ns Max
• Functionally Equivalent, but Faster Than Existing 24-Pin PLD Circuits
• Preload Capability on Output Registers Simplifies Testing
• Power-Up Clear on Registered Devices All Register Outputs are Set Low, but Voltage Levels at the Output Pins Go High
• Package Options Include Plastic Chip Carriers in Addition to Plastic and Ceramic DIPs
• Security Fuse Prevents Duplication
• Dependable Texas Instruments Quality and Reliability