(China (Mainland))
Product Summary
The HD6321P is a Peripheral Interface Adapter. The HD6321P Peripheral Interface Adapter provides the universal means of interfacing peripheral equipment to the HD6800 Microprocessing Unit (MPU). This device is capable of interfacing the MPU to peripherals through two 8-bit bi• directional peripheral data buses and four control lines. No external logic is required for interfacing to most peripheral devices. The functional configuration of the PIA is programmed by the MPU during system initialization. Each of the peripheral data lines can be programmed to act as an input or output, and each of the four control/interrupt lines may be programmed for one of several control modes. This allows a high degree of flexibility in the over-all operation of the interface.
Parametrics
HD6321P absolute maximum ratings: (1)Supply Voltage :-0.3 to +7.0 V; (2)Input Voltage : -0.3 to +7.0 V; (3)Maximum Output Current : 10 mA; (4)Maximum Total Output Current : 100 mA; (5)Operating Temperature : -20 to +75 ℃; (6)Storage Temperature : -55 to +150 ℃.
Features
HD6321P features: (1)Two Bi-directional 8-bit Peripheral Data Bus for interface to Peripheral devices; (2)Two programmable control, Data Direction Registers; (3)Four Individually Controlled Interrupt Input Lines: Two Usable as Peripheral Control Outputs; (4)High-Impedance 3-State and Direct Transistor Drive Peripheral Lines; (5)Two TTL Drive Capability on All A and B Side Buffers; (6)Low-Power, High-Speed, High-Density CMOS; (7)Wide Range Operating Voltage (VCC = 5V±10%); (8)Compatible with NMOS PIA (HD6821) (Refer to Electrical Specification as to Minor difference).
Diagrams
