(Hong Kong)
Product Summary
The 74VHC161284MTC is an IEEE 1284 Transceiver. The 74VHC161284MTC contains eight bidirectional data buffers and eleven control/status buffers to implement a full IEEE 1284 compliant interface. The device supports the IEEE 1284 standard and is intended to be used in Extended Capabilities Port mode (ECP). The pinout allows for easy connection from the Peripheral (A-side) to the Host (cable side). Outputs on the cable side can be configured to be either open drain or high drive (r14 mA).
Parametrics
74VHC161284MTC absolute maximum ratings: (1)Supply Voltage, VCC: -0.5V to +7.0V; (2)Input Voltage (VI), A1–A 13, PLHIN, DIR, HD: -0.5V to VCC +0.5V; B1–B8, C14–C17, HLHIN: -0.5V to +5.5V (DC); B1–B8, C14–C17, HLHIN: -2.0V to +7.0V; (3)Output Voltage (VO), A1–A8, A14–A17, HLH: -0.5V to VCC +0.5V; B1–B 8, Y9–Y13, PLH: -0.5V to +5.5V (DC); B1–B 8, Y9–Y13, PLH: -2.0V to +7.0V; (4)DC Output Current (IO), A1–A8, HLH: ±25 mA; B1–B8, Y9–Y13: ±50 mA; PLH (Output LOW): 84 mA; PLH (Output HIGH): -50 mA; (5)Input Diode Current (IIK), DIR, HD, A9–A13, PLH, HLH, C14–C17: -20 mA; (6)Output Diode Current (IOK), A1–A8, A14–A17, HLH: ±50 mA; B1–B8, Y9–Y13, PLH: ±50 mA; (7)DC Continuous VCC or Ground Current: ±200 mA; (8)Storage Temperature: -65℃ to +150℃.
Features
74VHC161284MTC features: (1)Supports IEEE 1284 Level 1 and Level 2 signaling standards for bidirectional parallel communications between personal computers and printing peripherals; (2)Replaces the function of two 74ACT1284 devices; (3)All inputs have hysteresis to provide noise margin; (4)B and Y output resistance optimized to drive external cable; (5)B and Y outputs in high impedance mode during power down; (6)Inputs and outputs on cable side have internal pull-up resistors; (7)Flow-through pin configuration allows easy interface between the Peripheral and Host.
Diagrams
