RD74LVC373B Octal D-type Transparent Latches with 3-state Outputs REJ03D0381–0100 Rev.1.00 Nov. 26, 2004 Description The RD74LVC373B has eight D type latches with three state outputs in a 20 pin package. When the latch enable input is high, the Q outputs will follow the D inputs. When the latch enable goes low, data at the D inputs will be retained at the outputs until latch enable returns high again. When a high logic level is applied to the output control input, all outputs go to a high impedance state, regardless of what signals are present at the other inputs and the state of the storage elements. 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 battery for long time operation. Features • • • • • • VCC = 1.65 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 ±4 mA (@VCC = 1.65 V) ±8 mA (@VCC = 2.3 V) ±12 mA (@VCC = 2.7 V) ±24 mA (@VCC = 3.0 V to 5.5 V) • Ordering Information Part Name Package Type Package Code Package Abbreviation Taping Abbreviation (Quantity) RD74LVC373BFPEL SOP–20 pin (JEITA) FP–20DAV FP EL (2,000 pcs/reel) RD74LVC373BTELL TSSOP–20 pin TTP–20DAV T ELL (2,000 pcs/reel) Function Table Inputs G LE Output Q D H X X Z L H L L L H H H L X Q0 L H: High level L: Low level X: Immaterial Z: High impedance Q0 : Level of Q before the indicated steady input conditions were established. Rev.1.00 Nov. 26, 2004 page 1 of 9 RD74LVC373B Pin Arrangement 20 VCC G 1 1Q 2 G Q G Q 19 8Q 1D 3 D D 18 8D 2D 4 D D 17 7D G Q G Q G Q G Q D D D D G Q G Q 2Q 5 3Q 6 3D 7 4D 8 4Q 9 GND 10 15 6Q 14 6D 13 5D 12 5Q 11 LE (Top view) Rev.1.00 Nov. 26, 2004 page 2 of 9 16 7Q RD74LVC373B Absolute Maximum Ratings Item Symbol Supply voltage Ratings Unit Conditions VCC –0.5 to 7.0 V Input diode current IIK –50 mA Input voltage VI –0.5 to 7.0 V Output diode current IOK –50 mA VO = –0.5 V Output voltage VO –0.5 to VCC+0.5 V Output "H" or "L" Output current IO ±50 mA VCC, GND current / pin ICC or IGND 100 mA Storage temperature Tstg –65 to +150 °C 50 VI = –0.5 V VO = VCC+0.5 V Output "Z" or VCC: OFF –0.5 to 7.0 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 Supply voltage Symbol VCC Ratings 1.5 to 5.5 Unit V 1.65 to 5.5 Input/output voltage At operation V VI 0 to 5.5 VO 0 to VCC Operating temperature Ta –40 to 85 °C Output current IOH –4 mA *1 Input rise / fall time tr, tf Output "Z" or VCC: OFF VCC = 1.65 V –8 VCC = 2.3 V –12 VCC = 2.7 V –24 VCC = 3.0 V to 5.5 V 4 mA VCC = 1.65 V 8 VCC = 2.3 V 12 VCC = 2.7 V 24 VCC = 3.0 V to 5.5 V 20 ns/V 10 Notes: 1. This item guarantees maximum limit when one input switches. Waveform: Refer to test circuit of switching characteristics. Rev.1.00 Nov. 26, 2004 page 3 of 9 G, LE, D Output "H" or "L" 0 to 5.5 IOL Conditions Data hold VCC = 1.65 V to 2.7 V VCC = 3.0 V to 5.5 V RD74LVC373B Electrical Characteristics Ta = –40 to 85°C Item Input voltage Symbol VIH VIL Output voltage VOH VOL VCC (V) Min Unit Max 1.65 to 1.95 VCC×0.65 — 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 Test Conditions V VCC–0.2 — 1.65 1.2 — IOH = –4 mA 2.3 1.7 — IOH = –8 mA 2.7 2.2 — IOH = –12 mA 3.0 2.4 — 3.0 2.2 — 4.5 3.8 — 1.65 to 5.5 — 0.2 1.65 — 0.45 IOL = 4 mA 2.3 — 0.7 IOL = 8 mA 2.7 — 0.4 IOL = 12 mA IOL = 24 mA 3.0 — 0.55 4.5 — 0.55 V IOH = –100 µA 1.65 to 5.5 IOH = –24 mA IOL = 100 µA Input current IIN 0 to 5.5 — ±5.0 µA VIN = 5.5 V or GND Output leak current IOFF 0 — ±5.0 µA VIN / VOUT = 5.5 V Off state output current IOZ 2.7 to 5.5 — ±5.0 µA VIN = VCC or GND VOUT = 5.5 V or GND Quiescent supply current ICC 2.7 to 3.6 — ±5.0 µA VIN = 3.6 to 5.5 V ∆ICC 2.7 to 5.5 — 5.0 µA VIN = VCC or GND 2.7 to 3.6 — 500 µA VIN = one input at (VCC–0.6)V, other inputs at VCC or GND Rev.1.00 Nov. 26, 2004 page 4 of 9 RD74LVC373B Switching Characteristics From To (Input) (Output) Ta = –40 to 85°C Item Propagation delay time Output enable time Output disable time Setup time Symbol — Max tPHL 2.5±0.2 1.0 — 9.6 2.7 1.0 — 7.7 3.3±0.3 1.5 — 6.9 19.1 5.0±0.5 1.0 — 5.4 tPLH 1.8±0.15 1.0 — 22.8 tPHL 2.5±0.2 1.0 — 10.5 2.7 1.0 — 8.4 3.3±0.3 2.0 — 7.7 5.0±0.5 1.0 — 6.2 tZH 1.8±0.15 1.0 — 20.0 tZL 2.5±0.2 1.0 — 10.5 2.7 1.0 — 8.5 3.3±0.3 1.5 — 7.5 5.0±0.5 1.0 — 6.0 tHZ 1.8±0.15 1.0 — 19.3 tLZ 2.5±0.2 1.0 — 7.8 2.7 1.0 — 7.0 3.3±0.3 1.6 — 6.5 5.0±0.5 1.0 — 5.5 1.8±0.15 6.0 — — 2.5±0.2 4.0 — — 2.7 2.0 — — 3.3±0.3 2.0 — — 5.0±0.5 2.0 — — 1.8±0.15 4.0 — — 2.5±0.2 2.0 — — 2.7 1.5 — — tw Between output *1 pins skew 1.0 Typ 1.8±0.15 th Pulse width Min tPLH tsu Hold time VCC (V) 3.3±0.3 1.5 — — 5.0±0.5 1.5 — — 1.8±0.15 9.0 — — 2.5±0.2 4.0 — — 2.7 3.3 — — 3.3±0.3 3.3 — — 5.0±0.5 3.3 — — tOSLH 1.8±0.15 — — — tOSHL 2.5±0.2 — — — 2.7 — — — 3.3±0.3 — — 1.0 Unit ns D Q ns LE Q ns G Q ns G Q ns ns ns ns 5.0±0.5 — — 1.0 Input capacitance CIN 3.3 — 4.0 — pF Output capacitance CO 3.3 — 8.0 — pF Note: 1. This parameter is characterized but not tested. tosLH = | tPLHm - tPLHn|, tosHL = | tPHLm - tPHLn| Rev.1.00 Nov. 26, 2004 page 5 of 9 RD74LVC373B Operating Characteristics Ta = 25°C Item Symbol Power dissipation capacitance VCC (V) CPD Min Typ Unit Max 1.8 27 2.5 28 3.3 30 5.0 35 Test Conditions pF f = 10 MHz Test Circuit VCC VCC Output RL G 1Q to 8Q See Function Table Input Pulse generator Zout = 50 Ω Input OPEN VTT RL CL GND 1D to 8D Symbol t PLH / t PHL Pulse generator LE Zout = 50 Ω Note: S1 t su / t h / t w t ZH/ t HZ t ZL / t LZ S1 OPEN GND VTT 1. CL includes probe and jig capacitance. Waveforms – 1 tf tr VIH 90 % 90 % Input LE Vref Vref 10 % tr 10 % tf 10 % 10 % t PHL t PLH Output Q VIH 90 % 90 % Input D GND GND VOH Vref Vref VOL Note: Input waveform: PRR = 10 MHz, duty cycle 50%. Rev.1.00 Nov. 26, 2004 page 6 of 9 RD74LVC373B Waveforms – 2 tr VIH 90 % Input LE 10 % 90 % Input D GND tf tr VIH 90 % Vref Vref 10 % t PHL 10 % t PLH GND VOH Vref Output Q Vref VOL Note: Input waveform: PRR = 10 MHz, duty cycle 50%. Waveforms – 3 tf tr VIH 90 % 90 % Vref Vref Input LE 10 % tw ts 10 % GND th VIH Input D Vref Vref GND Note: Input waveform: PRR = 10 MHz, duty cycle 50%. Rev.1.00 Nov. 26, 2004 page 7 of 9 RD74LVC373B Waveforms – 4 tf Input G tr 90 % Vref 10 % VIH 90 % Vref 10 % t LZ t ZL GND ≈1/2 VTT Vref Waveform - A VOL + ∆V t ZH Waveform - B t HZ VOH – ∆V Vref VOL VOH ≈GND VCC (V) VCC = 1.8±0.15 V VCC = 2.5±0.2 V VCC = 2.7 V VCC = 3.3±0.3 V VCC = 5.0±0.5 V Notes: INPUTS VIH VCC VCC 2.7 V 2.7 V VCC tr/tf ≤ 2 ns ≤ 2 ns ≤ 2.5 ns ≤ 2.5 ns ≤ 2.5 ns Vref 1/2 VCC 1/2 VCC VTT 2× VCC 2× VCC 1.5 V 6V 6V 2× VCC 1.5 V 1/2 VCC CL RL 30 pF 30 pF 50 pF 50 pF 50 pF 1.0 kΩ 500 Ω 500 Ω 500 Ω 500 Ω ∆V 0.15 V 0.15 V 0.3 V 0.3 V 0.3 V 1. Input waveform: PRR = 10 MHz, duty cycle 50% 2. Waveform – A shows input conditions such that the output is "L" level when enable by the output control. 3. Waveform – B shows input conditions such that the output is "H" level when enable by the output control. Rev.1.00 Nov. 26, 2004 page 8 of 9 RD74LVC373B Package Dimensions As of January, 2002 Unit: mm 12.6 13 Max 11 1 10 5.5 20 *0.20 ± 0.05 2.20 Max 1.15 0˚ – 8˚ 0.10 ± 0.10 0.80 Max 0.20 7.80 +– 0.30 1.27 *0.40 ± 0.06 0.70 ± 0.20 0.15 0.12 M Package Code JEDEC JEITA Mass (reference value) *Pd plating FP–20DAV — Conforms 0.31 g As of January, 2002 Unit: mm 6.50 6.80 Max 11 1 10 4.40 20 0.65 *0.20 ± 0.05 1.0 0.13 M 6.40 ± 0.20 *Pd plating Rev.1.00 Nov. 26, 2004 page 9 of 9 0.07 +0.03 –0.04 0.10 *0.15 ± 0.05 1.10 Max 0.65 Max 0˚ – 8˚ 0.50 ± 0.10 Package Code JEDEC JEITA Mass (reference value) TTP–20DAV — — 0.07 g Sales Strategic Planning Div. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Keep safety first in your circuit designs! 1. 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