MC8T23 MOTOROLA | Alldatasheet
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DUAL LINE DRIVERS INTEGRATED CIRCUIT The MC8T13 and MC8T23 are designed to drive transmission 16 lines with impedances of 50 2 to 500 £2. The MC8T23 specifically svesenevenenesey meets all of the input/output requirements of the IBM System beeernreene) OP viOw 360/System 370 specifications (IBM Specification GA 22-6974-0). 1 @ High Output Drive Capability — 1o= -75 mA (Min] @ Vo = 24 V ~ MCBT13 19 = -59.3 MA (Min) @ Vo = 3.11 V — MC8T23 Lure , 5 ‘© High Speed Operation — CEA PmcKAGE 1PLH = tPHL = 20ns (Max) with 60 92 Load CASE 620 @ MTTL and MOTL Compatible Inputs @ Uncommitted Emitter Output Structures Permit Party-Line Operation ‘@ Designed to Operate with MC8T14 or MCBT24 Line Receivers P SUFFIX @ Outputs are Short-Circuit Protected PLASTIC PACKAGE Case cas @ Equivalent to SN75121 and SN75123 Respectively. PIN CONNECTIONS inpur at [| 9] vee [4 CE] TYPICAL APPLICATION Input AS ety (7a) inout 85 input a4 [a } {73] inour @4 va mcorsa _ { va weet23 mens He ‘nour input a6 [6 } {73} input 82 coaxial va meaT24 ourout aT LCT fig] inour 8 core cafe] J >8) ours nr [irate SI ||| ian 7" 1" I t Pee ‘At Other 5-9
MAXIMUM RATINGS (Tg = +25°C uniess otherwise noted.) a Fone’ Soph Vana a 7 Power Dissipation @ Ta = +25°C 1000 mW Derate above 25°C 67 mw/ec Storage Temperature Range wero [eed ELECTRICAL CHARACTERISTICS (Uniess otherwise noted, 4.75 V Voc <5.25 V and 0°C <T a < 75°C) Mc8T13 MC8T23 | win [rye | tox | ain | tye] Mex | P| Poof - || on es Ee Input Current ~ Low Logic State ne Input Clamp Voltage Viiclamp) v (VIM = 2.0 V, lon = -75 mab Your v (Ta = 28°C) v (Vin = 45 V. Voc * 5.0 V, Vo = 2.0 V, Ta = 25°C) Output Short-Circuit Current -30 (Vin * 4.5 V. Voc = 5.0V, Vo = OV, Ta = 25°C). SWITCHING CHARACTERISTICS (Vcc = 5.0 V, Ta = 25°C uniess otherwise noted.) Figure 1 COs CO Propagation Delay Time — Low to High Level Output tPLH (RL = 502, CL = 100 pF) 7 5-10
MC8T13, MC8T23 To Scope To Scope trun <5.0n8 trHe <5.0ns-2] ew 18V 18Vv ae RL noL Vou | FIGURE 2 — REPRESENTATIVE SCHEMATIC DIAGRAM 5 | al TR Le} J : i ogy LC] ° 10) cr AIO emt a ‘
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