bruce@balilly.UUCP (Bruce Lilly) (12/25/90)
In article <1990Dec24.201623.3100@yenta.alb.nm.us> dt@yenta.alb.nm.us (David B. Thomas) writes: >Could some kind soul send me a pinout of the 26ls31 and 26ls32 chips? From the TI Line Driver and Line Receiver Data Book (typo's are probably mine): AM26LS31 quadruple differential line drivers ENABLE _ Vcc 4A 4Y 4Z G 3Z 3Y 3A ___________________________ +-------------------------------+ | INPUT | ENABLES | OUTPUTS | | 16 15 14 13 12 11 10 9| | +------_--+---------| | | | | | | | || | A | G G | Y Z | | +-|\-+ | | | +/|-+| |-------+---------+---------| | |/o---+ | +---o\| | | H | H X | H L | | | \ | | | L | H X | L H | > +--+------+---|---+---+ | | H | X L | H L | | | +-+-+ | | | | L | X L | L H | | |\o---+ |OR | |+-o/| | | X | L H | Z Z | | +-|/+ | ++-++ || +\|-+ | |_______|_________|_________| | | | | | o--+/ | | | H = high level | 1 2 3 4 5/ 6 7 8| L = low level +-------------------------------+ X = irrelevant 1A 1Y 1Z G 2Z 2Y 2A GND Z = high impedance (off) (Sorry the diagram looks so crude -- if it's too confusing ignore it and use the state table) AM26LS32A quadruple differential line receivers 4 3 4 NON- 4 ENABLE 3 NON- 3 INV INV OUT- _ OUT- INV INV Vcc INPUT INPUT PUT G PUT INPUT INPUT +--------------------------------------------+ |16 15 14 13 12 11 10 9| | | | | | | | || | | +-|\__| | |__/|-+ || | +------o|/ | \|o------+| | | | | | > +-----+---+---|---+-----+ | | | +-+-+ | | | | +------o|\___ |OR | | __/|o------+ | | | +-|/ | ++-++ || \|-+ | | | | | | | o--+| | | | | 1 2 3 4 5 6 7 8| +--------------------------------------------+ 1 1 1 ENABLE 2 2 2 GND INV NON- OUT- G OUT- NON- INV INPUT INV PUT PUT INV INPUT INPUT INPUT _________________________________ | | ENABLES | | | DIFFERENTIAL | _ | OUTPUT | H = high level | INPUT | G G | | L = low level |--------------|---------|--------| X = irrelevant | Vid >= Vth | H X | H | Z = high impedance (off) | | X L | H | ? = indeterminate |--------------|---------|--------| |Vtl<=Vid<=Vth | H X | ? | | | X L | ? | |--------------|---------|--------| | Vid <= Vtl | H X | L | | | X L | L | |--------------|---------|--------| | X | L H | Z | |______________|_________|________| -- Bruce Lilly blilly!balilly!bruce@sonyd1.Broadcast.Sony.COM