(China (Mainland))
Product Summary
The MC68B21P is a peripheral interface adapter (PIA). It provides the universal means of interfacing peripheral equipment to the M6800 family of microprocessors. It is capable of interfacing the MPU to peripherals through two 8-bit bidirectional peripheral data buses and four control lines.
Parametrics
MC68B21P absolute maximum ratings: (1)supply voltage, VCC: -0.3 to +7.0V; (2)input voltage, Vin: -0.3 to +7.0V; (3)operating temperature range, TA: -40 to +85℃; (4)storage temperature range, Tstg: -55 to +150℃.
Features
MC68B21P features: (1)8 bit bidirectional data bus for communication with the MPU; (2)two bidirectional 8-bit buses for interface to peripherals; (3)two programmable control registers; (4)two programmable data direction registers; (5)four individualy-controlled interrupt input lines; two usable as peripheral control outputs; (6)handshake control logic for input and output peripheral operation; (7)high-impedance three-state and direction transistor drive peripheral lines; (8)program controlled interrupt and interrupt disable capability; (9)CMOS drive capability on side A peripheral lines; (10)two TTL drive capability on all A and B side bufers; (11)TTL-compatible; (12)static operation.
Diagrams
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 MC6800 |
Other |
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Data Sheet |
Negotiable |
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MC6801 |
Other |
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Data Sheet |
Negotiable |
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MC68020 |
Other |
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Data Sheet |
Negotiable |
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MC68020CEH16E |
Freescale Semiconductor |
Microprocessors (MPU) 32-BIT MPU |
Data Sheet |
Negotiable |
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MC68020CEH25E |
Freescale Semiconductor |
Microprocessors (MPU) 32-BIT MPU |
Data Sheet |
Negotiable |
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MC68020CRC16E |
Freescale Semiconductor |
Microprocessors (MPU) 32-BIT MPU |
Data Sheet |
Negotiable |
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