HD74LVC541A Octal Buffers / Line Drivers with 3-state Outputs ADE-205-115B(Z) 3rd Edition December 1996 Description The HD74LVC541A has eight line drivers with three state outputs in a 20 pin package. When G1 and G2 is low level, this drivers set up output is enable. Low voltage and high speed operation is suitable at the battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation. Features • • • • • • VCC = 2.0 V to 5.5 V All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V) All outputs VOUT (Max.) = 5.5 V (@VCC = 0 V or output off state) Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C) Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C) High output current ±24 mA (@VCC = 3.0 V to 5.5 V) Function Table Inputs G1 G2 A Output Y L L L L L L H H H X X Z H X Z X H: L: X: Z: High level Low level Immaterial High impedance HD74LVC541A Pin Arrangement 20 VCC G1 1 A1 2 19 G2 A2 3 18 Y1 A3 4 17 Y2 A4 5 16 Y3 A5 6 15 Y4 A6 7 14 Y5 A7 8 13 Y6 A8 9 12 Y7 GND 10 11 Y8 (Top view) 2 HD74LVC541A Absolute Maximum Ratings Item Symbol Ratings Unit Supply voltage VCC –0.5 to 6.0 V Input diode current I IK –50 mA Input voltage VI –0.5 to 6.0 V Output diode current I OK –50 mA VO = –0.5 V 50 mA VO = VCC+0.5 V –0.5 to VCC +0.5 V Output "H" or "L" –0.5 to 6.0 V Output "Z" or VCC:OFF Output voltage VO Output current IO ±50 mA VCC, GND current / pin I CC or IGND 100 mA Storage temperature Tstg –65 to +150 °C Conditions VI = –0.5 V Note: The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two of which may be realized at the same time. Recommended Operating Conditions Item Symbol Ratings Unit Conditions Supply voltage VCC 1.5 to 5.5 V Data hold 2.0 to 5.5 V At operation VI 0 to 5.5 V G1, G2, A VO 0 to V CC V Output "H" or "L" 0 to 5.5 V Output "Z" or VCC:OFF Input / output voltage Operating temperature Ta –40 to 85 °C Output current I OH –12 mA VCC = 2.7 V –24 mA VCC = 3.0 V to 5.5 V 12 mA VCC = 2.7 V 24 mA VCC = 3.0 V to 5.5 V 10 ns/V *2 I OL *2 Input rise / fall time *1 t r, t f Notes: 1. This item guarantees maximum limit when one input switches. Waveform : Refer to test circuit of switching characteristics. 2. duty cycle ≤ 50% 3 HD74LVC541A Electrical Characteristics Ta = –40 to 85°C Item Symbol VCC (V) Min Max Unit Test Conditions Input voltage VIH 2.7 to 3.6 2.0 — V 4.5 to 5.5 VCC×0.7 — V 2.7 to 3.6 — 0.8 V 4.5 to 5.5 — VCC×0.3 V 2.7 to 5.5 VCC–0.2 — V I OH = –100 µA 2.7 2.2 — V I OH = –12 mA 3.0 2.4 — V 3.0 2.2 — V 4.5 3.8 — V 2.7 to 5.5 — 0.2 V I OL = 100 µA 2.7 — 0.4 V I OL = 12 mA 3.0 — 0.55 V I OL = 24 mA 4.5 — 0.55 V VIL Output voltage VOH VOL I OH = –24 mA Input current I IN 0 to 5.5 — ±5.0 µA VIN = 5.5 V or GND Off state output current I OZ 2.7 to 5.5 — ±5.0 µA VIN = VCC, GND VOUT = 5.5 V or GND Output leak current I OFF 0 — 20 µA VIN / V OUT = 5.5 V 2.7 to 3.6 — ±10 µA VIN / V OUT = 3.6 to 5.5 V 2.7 to 5.5 — 10 µA VIN = VCC or GND 3.0 to 3.6 — 500 µA VIN = one input at(VCC–0.6)V, other inputs at V CC or GND Quiescent supply current I CC ∆I CC 4 HD74LVC541A Switching Characteristics Ta = –40 to 85°C Item Symbol VCC (V) Min Typ Max Unit From (Input) To (Output) Propagation delay time t PLH 2.7 — — 7.5 ns A Y t PHL 3.3±0.3 1.5 — 6.5 ns 5.0±0.5 — — 5.0 ns t ZH 2.7 — — 9.5 ns G1 or G2 Y t ZL 3.3±0.3 1.5 — 8.5 ns 5.0±0.5 — — 7.0 ns t HZ 2.7 — — 8.5 ns G1 or G2 Y t LZ 3.3±0.3 1.5 — 7.5 ns 5.0±0.5 — — 6.5 ns t OSLH 2.7 — — — ns t OSHL 3.3±0.3 — — 1.0 ns 5.0±0.5 — — 1.0 ns Output enable time Output disable time Between output pins skew *1 Input capacitance CIN 2.7 — 3.0 — pF Output capacitance CO 2.7 — 15.0 — pF Note: 1. This parameter is characterized but not tested. tosLH = | tPLHm - tPLHn |, tosHL = | tPHLm - tPHLn| 5 HD74LVC541A Test Circuit VCC VCC G1 Pulse generator Zout = 50 Ω Output See Function Table Input A1 500 Ω S1 Y1 CL = 50 pF OPEN See under table GND *1 450 Ω 50 Ω Scope G2 Symbol t PLH / t PHL t ZH/ t HZ t ZL / t LZ Notes: 6 1. 2. CL includes probe and jig capacitance. A2-Y2 to A8-Y8 are identical to above load circuit. S1 Vcc=2.7V, 3.3±0.3V Vcc=5.0±0.5V OPEN GND OPEN GND 6V 2×Vcc HD74LVC541A Waveforms – 1 tr tf 90 % Vref Input A VIH 90 % Vref 10 % 10 % GND t PHL t PLH VOH Vref Output Y Vref VOL Notes: 1. 2. t r = 2.5 ns, tf = 2.5 ns Input waveform : PRR = 10 MHz, duty cycle 50% Waveforms – 2 tf tr 90 % Vref 10 % Input G VIH 90 % Vref 10 % t ZL GND t LZ ≈V OH1 Waveform - A Vref t ZH Waveform - B VOL + 0.3 V t HZ VOH – 0.3 V Vref VOL VOH ≈V OL1 TEST VIH Vref VOH1 VOL1 Notes: 1. 2. 3. 4. Vcc=2.7V, 3.3±0.3V Vcc=5.0±0.5V 2.7 V Vcc 1.5 V 3V 50%Vcc GND GND Vcc t r = 2.5 ns, tf = 2.5 ns Input waveform : PRR = 10 MHz, duty cycle 50% Waveform – A shows input conditions such that the output is "L" level when enable by the output control. Waveform – B shows input conditions such that the output is "H" level when enable by the output control. 7 Unit: mm 6.50 6.80 Max 11 1 10 4.40 20 0.65 *0.22+0.08 –0.07 0.20 ± 0.06 1.0 0.13 M 6.40 ± 0.20 *Dimension including the plating thickness Base material dimension 0.07 +0.03 –0.04 0.10 *0.17 ± 0.05 0.15 ± 0.04 1.10 Max 0.65 Max 0° – 8° 0.50 ± 0.10 Hitachi Code JEDEC EIAJ Weight (reference value) TTP-20DA — — 0.07 g Cautions 1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent, copyright, trademark, or other intellectual property rights for information contained in this document. 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