HD74LVC2244A Octal Buffers / Line Drivers with 3–state Outputs ADE-205-234 (Z) Preliminary 1st. Edition December 1998 Description The HD74LVC2244A has eight line drivers with three state outputs in a 20 pin package. This device is a noninverting buffer and has two active low enables (1G and 2G). Each enable independently controls four buffers. All outputs, which are designed to sink up to 12 mA, include equivalent 26 Ω resistors to reduce overshoot and undreshoot. When VCC is between 0 and 1.5 V, the device is in the high impedance state during power up or power down. Low voltage and high speed operation is suitable at battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation. Features • VCC = 1.65 to 5.5 V • All inputs VIH (Max) = 5.5 V (@VCC = 0 to 5.5 V) • All outputs VO (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 ±12 mA (@V CC = 3.0 to 5.5 V) • All outputs have equivalent 26 Ω series resistors, so no external resistors are required HD74LVC2244A Function Table Inputs Output Y G A H X Z L H H L L L H : High level L : Low level X : Immaterial Z : High impedance Pin Arrangement 20 VCC 1G 1 1A1 2 19 2G 2Y4 3 18 1Y1 1A2 4 17 2A4 2Y3 5 16 1Y2 1A3 6 15 2A3 2Y2 7 14 1Y3 1A4 8 13 2A2 2Y1 9 12 1Y4 GND 10 11 2A1 (Top view) 2 HD74LVC2244A Absolute Maximum Ratings Item Symbol Ratings Unit Supply voltage VCC –0.5 to 7.0 V Input voltage VI –0.5 to 7.0 V Output voltage VO –0.5 to 7.0 V –0.5 to VCC+0.5 Conditions Output “Z” or VCC : OFF Output “H” or “L” Input diode current I IK –50 mA VI < 0 Output diode current I OK –50 mA VO < 0 Output current IO ±50 mA VCC, GND current I CC or IGND ±100 mA Storage temperature Tstg –65 to 150 °C 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 1.65 to 5.5 V At operation 1.5 to 5.5 Data retention only Input voltage VI 0 to 5.5 V Output voltage VO 0 to 5.5 V 0 to V CC Output current I OH I OL –2 Output “Z” or VCC : OFF Output “H” or “L” mA VCC = 1.65 V –4 VCC = 2.3 V –8 VCC = 2.7 V –12 VCC = 3.0 to 5.5 V 2 VCC = 1.65 V 4 VCC = 2.3 V 8 VCC = 2.7 V 12 VCC = 3.0 to 5.5 V Input rise / fall time t r, t f 0 to 6 ns / V Operating temperature Ta –40 to +85 °C 3 HD74LVC2244A Logic Diagram 1G 1A1 1A2 1A3 1A4 4 1 2G 2 18 4 16 6 14 8 12 1Y1 2A1 1Y2 2A2 1Y3 2A3 1Y4 2A4 19 11 9 13 7 15 5 17 3 2Y1 2Y2 2Y3 2Y4 HD74LVC2244A Electrical Characteristics (Ta = –40 to 85°C) Item Symbol VCC (V) Input voltage VIH VIL Output voltage VOH Min Typ Max Unit Test Conditions 1.65 to 1.95 VCC×0.65 — — V 2.3 to 2.7 1.7 — — 2.7 to 3.6 2.0 — — 4.5 to 5.5 VCC×0.7 — — 1.65 to 1.95 — — VCC×0.35 2.3 to 2.7 — — 0.7 2.7 to 3.6 — — 0.8 4.5 to 5.5 — — VCC×0.3 — 1.65 1.2 — — I OH = –2 mA 2.3 1.7 — — I OH = –4 mA 2.7 2.2 — — 3.0 2.4 — — I OH = –6 mA 2.7 2.0 — — I OH = –8 mA 3.0 2.0 — — I OH = –12 mA 4.5 3.6 — — 1.65 to 5.5 — — 0.2 I OL = 100 µA 1.65 — — 0.45 I OL = 2 mA 2.3 — — 0.7 I OL = 4 mA 2.7 — — 0.4 3.0 — — 0.55 I OL = 6 mA 2.7 — — 0.6 I OL = 8 mA 3.0 — — 0.8 I OL = 12 mA 4.5 — — 0.8 0 to 5.5 — — ±5 µA VIN = 0 to 5.5 V Off state output current I OZ 1.65 to 5.5 — — ±5 µA VOUT = 0 to 5.5 V Output leak current I OFF 0 — — ±5 µA VIN or VO = 5.5 V Quiescent supply I CC 1.65 to 3.6 — — 10 µA VIN = 3.6 to 5.5 V *1 , I O = 0 1.65 to 5.5 — — 10 VIN = VCC or GND ∆I CC 2.7 to 3.6 — — 500 VIN = one input at (VCC– 0.6)V, other inputs at V CC or GND Input capacitance CIN 3.3 — TBD — pF VIN = VCC or GND Output capacitance CO 3.3 — TBD — pF VOUT = VCC or GND VOL Input current I IN current Note: V I OH = –100 µA 1.65 to 5.5 VCC–0.2 — 1. This applies in the disabled state only. 5 HD74LVC2244A Switching Characteristics (Ta = –40 to 85°C) Item Symbol VCC (V) Propagation delay time Output enable time Output disable time Min Typ Max Unit FROM (Input) TO (Output) t PLH 1.8±0.15 TBD TBD TBD ns A Y t PHL 2.5±0.2 TBD TBD TBD 2.7 — — 6.4 3.3±0.3 1.5 — 5.5 5.0±0.5 — — 4.1 ns G Y ns G Y t ZH 1.8±0.15 TBD TBD TBD t ZL 2.5±0.2 TBD TBD TBD 2.7 — — 8.1 3.3±0.3 1.0 — 7.1 5.0±0.5 — — 5.6 t HZ 1.8±0.15 TBD TBD TBD t LZ 2.5±0.2 TBD TBD TBD 2.7 — — 7.3 3.3±0.3 1.5 — 6.8 5.0±0.5 — — 5.7 1.8±0.15 TBD TBD TBD 2.5±0.2 TBD TBD TBD 2.7 — — — 3.3±0.3 — — 1.0 5.0±0.5 — — 1.0 Between output pin skew t OSLH *1 t OSHL Note : 1. This parameter is characterized but not tested. t OSLH = |tPLHm–t PLHn |, tOSHL = |tPHLm–t PHLn | 6 ns HD74LVC2244A Test Circuit (V CC = 1.8±0.15 V, VCC = 2.5±0.2 V) VCC VCC Output Input Pulse generator Zout = 50 Ω See Function Table 1G, 2G R1 1Y1 to 2Y4 1A1 to 2A4 S1 2×VCC R2 C L= 30 pF GND 50 Ω Scope VCC (V) R1 R2 1.8±0.15 1 kΩ 950 Ω 2.5±0.2 500 Ω 450 Ω OPEN S1 Symbol t PLH / t PHL OPEN t ZH / t HZ t ZL / t LZ GND 2×VCC Note: 1. C L includes probe and jig capacitance. 7 HD74LVC2244A (V CC = 2.7 V, VCC = 3.3±0.3 V, VCC = 5.0±0.5 V) VCC VCC Output Input Pulse generator Zout = 50 Ω See Function Table 1G, 2G 500 Ω 1Y1 to 2Y4 1A1 to 2A4 C L= 50 pF 450 Ω Note: 1. C L includes probe and jig capacitance. OPEN See under table *1 GND 50 Ω Scope Symbol 8 S1 S1 Vcc=2.7V, 3.3±0.3V Vcc=5.0±0.5V t PLH / t PHL OPEN OPEN t ZH/ t HZ t ZL / t LZ GND 6V GND 2×VCC HD74LVC2244A (V CC = 1.8±0.15 V, VCC = 2.5±0.2 V) • Waveforms – 1 tr Input A 10 % tf 90 % 50% VCC VCC 90 % 50% VCC 10 % t PHL t PLH GND VOH Output Y 50% VCC 50% VCC VOL • Waveforms – 2 tf tr 90 % Input G 50% VCC 10 % t ZL VCC 90 % 50% VCC 10 % GND t LZ ≈VCC Waveform – A 50% VCC t ZH Waveform – B 50% VCC VOL + 0.15 V t HZ VOH – 0.15 V VOL VOH ≈GND Notes: 1. Input waveform : PRR = 10 MHz, duty cycle 50%, t r = 2.0 ns, t f = 2.0 ns 2. Waveform – A shows input conditions such that the output is “L” level when enabled by the output control. 3. Waveform – B shows input conditions such that the output is “H” level when enabled by the output control. 9 HD74LVC2244A (V CC = 2.7 V, VCC = 3.3±0.3 V, VCC = 5.0±0.5 V) • Waveforms – 1 tr tf 90 % Input A VIH 90 % Vref Vref 10 % 10 % GND t PHL t PLH VOH Output Y Vref Vref VOL • Waveforms – 2 tf Input G tr 90 % Vref VIH 90 % Vref 10 % t ZL 10 % GND t LZ ≈VOH1 Waveform – A Vref t ZH Waveform – B Vref VOL + 0.3 V VOL t HZ VOH VOH – 0.3 V ≈VOL1 TEST VIH Vcc=2.7V, 3.3±0.3V Vcc=5.0±0.5V 2.7 V 1.5 V VOH1 3V VCC 50%VCC VCC VOL1 GND GND Vref Notes: 1. Input waveform : PRR = 10 MHz, duty cycle 50%, t r = 2.5 ns, t f = 2.5 ns 2. Waveform – A shows input conditions such that the output is “L” level when enabled by the output control. 3. Waveform – B shows input conditions such that the output is “H” level when enabled by the output control. 10 HD74LVC2244A Package Dimensions Unit : mm 12.6 13 Max 11 1 10 1.27 0.42 ± 0.08 0.40 ± 0.06 0.10 ± 0.10 0.80 Max 0.22 ± 0.05 0.20 ± 0.04 2.20 Max 5.5 20 0.20 7.80 +– 0.30 1.15 0° – 8° 0.70 ± 0.20 0.15 0.12 M Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) FP-20DA — Conforms 0.31 g 11 HD74LVC2244A 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 12 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 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. 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