MC54/74F827 MC54/74F828 10-BIT BUFFERS/LINE DRIVERS (WITH 3-STATE OUTPUTS) The MC54/74F827 and MC54/74F828 10-bit bus buffers provide high performance bus interface buffering for wide data/address paths or buses carrying parity. The 10-bit buffers have NOR output enables for maximum control flexibility. The F827 and F828 are functionally and pin compatible to AMD’s 29827 and 29828. The F828 is an inverting version of the F827. • 3-State Outputs Drive Memory Address, Bus and Clock Lines • Outputs Sink 64 mA • 15 mA Source Current • Flow Through Pinout Architecture for Microprocessor Oriented Applications 10-BIT BUFFERS/LINE DRIVERS (WITH 3-STATE OUTPUTS) FAST SCHOTTKY TTL J SUFFIX CERAMIC CASE 758-01 24 1 CONNECTION DIAGRAMS (TOP VIEW) VCC O0 24 23 O1 22 O2 21 O3 20 O4 19 O5 18 O6 17 O7 16 O8 15 O9 OE2 14 13 N SUFFIX PLASTIC CASE 724-03 24 1 F827 2 D0 3 D1 4 D2 5 D3 6 D4 7 D5 8 D6 9 D7 10 D8 11 12 D9 GND VCC O0 24 23 O1 22 O2 21 O3 20 O4 19 O5 18 O6 17 O7 16 O8 15 O9 OE2 14 13 1 OE1 DW SUFFIX SOIC CASE 751E-03 24 1 ORDERING INFORMATION MC54FXXXJ Ceramic MC74FXXXN Plastic MC74FXXXDW SOIC F828 LOGIC SYMBOL 1 OE1 2 D0 3 D1 4 D2 5 D3 6 D4 7 D5 8 D6 9 D7 10 D8 F827 11 12 D9 GND 2 3 4 5 6 1 13 LOGIC DIAGRAM D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 7 8 9 10 11 D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 OE1 OE2 O0 O1 O2 O3 O4 O5 O6 O7 O8 O9 23 22 21 20 19 18 17 16 15 14 F828 2 3 4 5 6 OE1 OE2 O9 O8 O7 O6 O5 O4 O3 O2 O1 O0 Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. 1 13 7 8 9 10 11 D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 OE1 OE2 O0 O1 O2 O3 O4 O5 O6 O7 O8 O9 23 22 21 20 19 18 17 16 15 14 FAST AND LS TTL DATA 4-261 MC54/74F827 • MC54/74F828 GUARANTEED OPERATING RANGES Symbol Parameter VCC Supply Voltage* TA Operating Ambient Temperature Range IOH Output Current — High IOL Output Current — Low Min Typ Max Unit 54, 74 4.5 5.0 5.5 V 54 –55 25 125 74 0 25 70 54 — — –12 74 — — –15 54 — — 48 74 — — 64 °C mA FUNCTION TABLE Inputs Outputs On OE Dn F827 F828 L L H H L X H L Z L H Z H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care Z = High Impedance FAST AND LS TTL DATA 4-262 Function Transparent Transparent High Z mA MC54/74F827 • MC54/74F828 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Parameter Min Typ Max Unit — V Guaranteed Input HIGH Voltage Test Conditions VIH Input HIGH Voltage 2.0 — VIL Input LOW Voltage — — 0.8 V Guaranteed Input LOW Voltage VIK Input Clamp Diode Voltage — — –1.2 V IIN = –18 mA 54 2.0 — — V IOH = –12 mA 74 2.0 — — V IOH = –15 mA 54, 74 2.4 — — V IOH = –3.0 mA 74 2.7 — — V IOH = –3.0 mA 54 — — 0.55 V IOL = 48 mA 74 — — 0.55 V IOL = 64 mA VOH Output HIGH Voltage VCC = MIN VCC = MIN VCC = 4.75 V VOL Output LOW Voltage VCC = MIN IOZH Output Off Current HIGH — — 50 µA VOUT = 2.7 V VCC = MAX IOZL Output Off Current LOW — — –50 µA VOUT = 0.5 V VCC = MAX — — 20 IIH Input HIGH Current µA VIN = 2.7 V — — 100 µA VIN = 7.0 V IIL Input LOW Current — — –20 µA VIN = 0.5 V VCC = MAX IOS Output Short Circuit Current (Note 2) –100 — –225 mA VOUT = 0 V VCC = MAX Power Supply Current HIGH F827 — — 70 mA ICCH Outputs HIGH F828 — — 45 mA VCC = MAX Power Supply Current LOW F827 — — 100 mA ICCL Outputs LOW F828 — — 85 mA VCC = MAX F827 — — 90 mA ICCZ Power Supply Current OFF Outputs OFF F828 — — 70 mA VCC = MAX VCC = 0 V NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type. 2. Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS Symbol Parameter tPLH tPHL Propagation Delay, Data to Output tPZH tPZL Output Enable Time tPHZ tPLZ Output Disable Time tPLH tPHL Propagation Delay, Data to Output tPZH tPZL Output Enable Time tPHZ tPLZ Output Disable Time F827 F828 54/74F 54F 74F TA = +25°C VCC = +5.0 V CL = 50 pF TA = – 55°C to +125°C VCC = 5.0 V ± 10% CL = 50 pF TA = 0°C to 70°C VCC = 5.0 V ± 10% CL = 50 pF Min Max Min Max Min Max 2.0 8.5 2.0 10 2.0 9.0 2.0 8.5 2.0 10 2.0 9.0 3.5 9.5 3.5 11 3.5 10 4.0 9.0 4.0 10.5 4.0 9.5 2.0 8.0 2.0 9.5 2.0 8.5 1.5 8.0 1.5 9.5 1.5 8.5 2.0 9.0 2.0 11 2.0 10 1.0 8.0 1.0 10 1.0 9.0 3.5 9.5 3.5 11 3.5 10 4.0 9.0 4.0 10.5 4.0 9.5 2.0 8.5 2.0 10 2.0 9.0 1.5 7.0 1.5 9.0 1.5 8.0 FAST AND LS TTL DATA 4-263 Unit ns ns ns ns ns ns