HD74LVCZ16244A 16–bit Buffers / Line Drivers with 3–state Outputs ADE-205-232 (Z) 1st. Edition February 1999 Description The HD74LVCZ16244A has sixteen line drivers with three state outputs in a 48 pin package. This device is a non inverting buffer and has four active low enables (1G to 4G). Each enable independently controls four buffers. 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 = 2.7 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 impedance state during power up and power down • Power off disables outputs, permitting live insertion • High output current ±24 mA (@V CC = 3.0 to 5.5 V) HD74LVCZ16244A 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 2 HD74LVCZ16244A Pin Arrangement 1G 1 48 2G 1Y1 2 47 1A1 1Y2 3 46 1A2 GND 4 45 GND 1Y3 5 44 1A3 1Y4 6 43 1A4 VCC 7 42 VCC 2Y1 8 41 2A1 2Y2 9 40 2A2 GND 10 39 GND 2Y3 11 38 2A3 2Y4 12 37 2A4 3Y1 13 36 3A1 3Y2 14 35 3A2 GND 15 34 GND 3Y3 16 33 3A3 3Y4 17 32 3A4 VCC 18 31 VCC 4Y1 19 30 4A1 4Y2 20 29 4A2 GND 21 28 GND 4Y3 22 27 4A3 4Y4 23 26 4A4 4G 24 25 3G (Top view) 3 HD74LVCZ16244A 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 2.7 to 5.5 V At operation Input voltage VI 0 to 5.5 V Output voltage VO 0 to 5.5 V 0 to V CC Output current I OH –12 –24 I OL Output “H” or “L” mA *1 VCC = 2.7 V *1 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 Note: 4 1. Duty cycle ≤ 50% VCC = 2.7 V VCC = 3.0 to 5.5 V 12 24 Output “Z” or VCC : OFF HD74LVCZ16244A Logic Diagram 1G 1A1 1A2 1A3 1A4 3G 3A1 3A2 3A3 3A4 1 2G 47 2 46 3 44 5 43 6 1Y1 2A1 1Y2 2A2 1Y3 2A3 1Y4 2A4 25 4G 36 13 35 14 33 16 32 17 3Y1 4A1 3Y2 4A2 3Y3 4A3 3Y4 4A4 48 41 8 40 9 38 11 37 12 2Y1 2Y2 2Y3 2Y4 24 30 19 29 20 27 22 26 23 4Y1 4Y2 4Y3 4Y4 5 HD74LVCZ16244A Electrical Characteristics (Ta = –40 to 85°C) Item Symbol VCC (V) Input voltage VIH VIL Output voltage VOH Min Typ Max Unit Test Conditions — — V 4.5 to 5.5 VCC×0.7 — — 2.7 to 3.6 — — 0.8 4.5 to 5.5 — — VCC×0.3 2.7 to 3.6 2.0 — 2.7 2.2 — — 3.0 2.4 — — 3.0 2.2 — — 4.5 3.8 — — 2.7 to 5.5 — — 0.2 I OL = 100 µA 2.7 — — 0.4 I OL = 12 mA 3.0 — — 0.55 I OL = 24 mA 4.5 — — 0.55 0 to 5.5 — — ±5 µA VIN = 0 to 5.5 V 2.7 to 5.5 — — ±5 µA VOUT = 0 to 5.5 V I OZPU 0 to 1.5 — — ±5 VOUT = 0.5 to 5.5 V, I OZPD 1.5 to 0 — — ±5 Output enable = don’t care Output leak current I OFF 0 — — ±5 µA VIN or VO = 5.5 V Quiescent supply I CC 2.7 to 3.6 — — 225 µA VIN = 3.6 to 5.5 V *1 , I O = 0 2.7 to 5.5 — — 350 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 — 4.1 — pF VIN = VCC or GND Output capacitance CO 3.3 — 8.1 — pF VOUT = VCC or GND VOL Input current I IN Off state output current I OZ current Note: 6 1. This applies in the disabled state only. V I OH = –100 µA 2.7 to 5.5 VCC–0.2 — I OH = –12 mA I OH = –24 mA HD74LVCZ16244A 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 — — 4.7 ns A Y t PHL 3.3±0.3 1.1 — 4.1 5.0±0.5 — — 3.8 t ZH 2.7 — 5.8 ns G Y t ZL 3.3±0.3 1.0 — 4.6 5.0±0.5 — — 4.4 t HZ 2.7 — 6.2 ns G Y t LZ 3.3±0.3 1.8 — 5.8 5.0±0.5 — — 4.6 t OSLH 2.7 — — — t OSHL 3.3±0.3 — — 1.0 5.0±0.5 — — 1.0 Output enable time Output disable time Between output pin skew *1 — — ns Note : 1. This parameter is characterized but not tested. t OSLH = |tPLHm–t PLHn |, tOSHL = |tPHLm–t PHLn | Test Circuit VCC VCC Output Input Pulse generator Zout = 50 Ω See Function Table 1G to 4G 500 Ω 1Y1 to 4Y4 1A1 to 4A4 C L= 50 pF S1 450 Ω GND 50 Ω Scope Symbol OPEN See under table *1 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 Note: 1. C L includes probe and jig capacitance. 7 HD74LVCZ16244A • Waveforms – 1 tr tf 90 % Vref Input A VIH 90 % 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. 8 HD74LVCZ16244A Power up / down Characteristics 4.0 Ta = 25°C Output enable = “L” VOUT (V) 3.0 2.0 Disable area Enable area 1.0 0 0 1.0 2.0 3.0 4.0 VCC (V) 9 HD74LVCZ16244A Package Dimensions Unit : mm +0.3 12.50 –0.1 25 6.10 +0.3 –0.1 48 0.20 +0.1 –0.05 0.50 24 0.15 ± 0.05 1 0.08 M 10 0.05 Min 0.10 1.20 max 0.65 Max 8.10 ± 0.3 10° Max 0.50 ± 0.1 Hitachi code EIAJ code JEDEC code TTP-48DC — — 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. Hitachi bears no responsibility for problems that may arise with third party’s rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. 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