Product Summary
The SMC34C60QFP is a parallel port interface chip. In addition to Standard (Compatible) printer ports, the SMC34C60QFP supports PS/2 (bi-directional), EPP, and ECP ports. Up to eight peripherals may be daisy chained between the computer and the printer. Printer operation is unaffected. The SMC34C60QFP also provides a piezo transducer driver for battery-powered systems. The transducer will signal low battery with two repeated beeps. If the cable to the computer is disconnected, or if the host is dormant for about a minute, the transducer will signal inactivity with four beeps. Additionally, a power-down signal can be provided to external circuitry to automatically shut down system power during inactivity.
Parametrics
SMC34C60QFP absolute maximum ratings: (1)Operating Temperature Range: 0℃ to +70℃; (2)Storage Temperature Range: -55℃ to +150℃; (3)Lead Temperature Range (soldering, 10 seconds): +325℃; (4)Positive Voltage on any pin, with respect to Ground: VCC + 0.3V; (5)Negative Voltage on any pin, with respect to Ground: -0.3V; (6)Maximum Vcc: +7V.
Features
SMC34C60QFP features: (1)Creates PC/AT-Style Bus from Parallel Printer Port Signals; (2)Single Chip Interface to Any Bus Capable Peripheral; (3)Supports Standard, Bi-Directional, EPP, and ECP Parallel Ports; (4)Burst Mode for Improved Data Transfer Rates; (5)Adaptive Interface Optimizes Transfer Rates to Parallel Port Characteristics Digital Signal Filtering Increases Noise Immunity; (6)Allows Daisy-Chain of up to Eight Peripherals Including Standard Printer Provides Interrupt Sharing with Daisy-Chained Devices 16-Bit Product ID Support Peripheral Bus Clock Selectable at System Clock 12, 13, 15, or /6 Interfaces to 8-Bit and/or 16-Bit Peripherals.
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