●These programmable array logic devices feature high speed and functional equivalency when compared with currently available devices. These IMPACT-XTM 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 further reduction in board space.
●All of the register outputs are set to a low level during power up. Extra circuitry has been provided to allow loading of each register asynchronously to either a high or low state. This feature simplifies testing because the registers can be set to an initial state prior to executing the test sequence.
●The TIBPAL20" C series is characterized from 0°C to 75°C.
● High-Performance Operation:
● fmax (no feedback)
●TIBPAL20R" . . . 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
●DEVICE
●| I
●INPUTS
●| 3-STATE
●O OUTPUTS
●| REGISTERED
●Q OUTPUTS
●| I/O
●PORT
●S
●---|---|---|---|---
●PAL20L8
●| 14
●| 2
●| 0
●| 6
●PAL20R4
●| 12
●| 0
●| 4 (3-state buffers)
●| 4
●PAL20R6
●| 12
●| 0
●| 6 (3-state buffers)
●| 2
●PAL20R8
●| 12
●| 0
●| 8 (3-state buffers)
●| 0
●These devices are covered by U.S. Patent 4,410,987.
●IMPACT-X is a trademark of Texas Instruments Incorporated.
●PAL is a registered trademark of Advanced Micro Devices Inc.
