SN75C08

Single-Ended Driver for Request Line With Improved Characteristics Single-Ended Receiver for ACKNOWLEDGE Line With Improved Characteristics Controlled Driver Rise and Fall Times 10 ns Typ High Receiver Input Hysteresis 600 mV Typ Receiver Input Noise Pulse Filter 2.5 ns Max Request and Acknowledge Meet ANSI X3.131-1986 (SCSI) Packaged in Thin Shrink-Small-Outline Package With 25-mil Pin Pitches Designed to Operate at 5 Million Transfers Per Second Power Up/Down Glitch Protection High Impedance With VCC = 0 V description The SN75C08 is an input/output SCSI buffer with eight channels. One channel, REQ (request), is an open-drain driver that includes controlled rise and fall times to reduce crosstalk and RF emissions on the SCSI bus. The device also has one channel, ACK (acknowledge), that is a receiver that typically exhibits 600 mV of hysteresis and a 2.5-ns pulse filter to reject noise for bus reflections and/or other sources. The remaining channels offer TTL inputs and 4-mA 3-state outputs. The enhancement to standard CMOS I/Os provides fewer data errors and higher data throughput with less noise emissions. The switching speeds of the SN75C08 are sufficient to transfer data over the data bus at five million transfers per second. This device is available in the space efficient shrink-small-outline package (SSOP) with 25-mil pin pitch. The SN75C08 is characterized for operation from 0°C to 70°C. SN75C08 SCSI INPUT/OUTPUT BUFFER SLLS153 – D4067, JANUARY 19...