features
• specified for 10% tolerance supplies
• class 3 esd protection (hbm) on all pins. . . . . . . . >7kv
• high data rates. . . . . . . . . . . . . . . . . . . . . . up to 5mbps
• slew rate limited versions for error free data
transmission at 250kbps (isl8483, isl8488, isl8489)
• single unit load allows up to 32 devices on the bus
• 1na low current shutdown mode (isl8483)
• low quiescent current:
- 160μa (isl8483, isl8488, isl8489)
- 500μa (isl8485, isl8490, isl8491)
• -7v to +12v common mode input voltage range
• three state rx and tx outputs (except isl8488,
isl8490)
• 30ns propagation delays, 5ns skew (isl8485, isl8490,
isl8491)
• full duplex and half duplex pinouts
• operate from a single +5v supply (10% tolerance)
• current limiting and thermal shutdown for driver
overload protection
• pb-free plus anneal available (rohs compliant)
applications
• factory automation
• security networks
• building environmental control systems
• industrial/process control networks
• level translators (e.g., rs-232 to rs-422)
• rs-232 “extension cords”
table 1. summary of features
part
number
half/full
duplex
no. of devices
allowed on bus
data rate
(mbps)
slew-rate
limited?
receiver/
driver enable?
quiescent