0
登录后你可以
  • 下载海量资料
  • 学习在线课程
  • 观看技术视频
  • 写文章/发帖/加入社区
会员中心
创作中心
发布
  • 发文章

  • 发资料

  • 发帖

  • 提问

  • 发视频

创作活动
74HC4351D,653

74HC4351D,653

  • 厂商:

    NEXPERIA(安世)

  • 封装:

    SOIC20_12.8X7.5MM

  • 描述:

    带锁存器的8通道模拟多路复用器/解复用器

  • 数据手册
  • 价格&库存
74HC4351D,653 数据手册
74HC4351; 74HCT4351 8-channel analog multiplexer/demultiplexer with latch Rev. 4 — 4 August 2021 Product data sheet 1. General description The 74HC4351; 74HCT4351 is a single-pole octal-throw analog switch (SP8T) suitable for use in analog or digital 8:1 multiplexer/demultiplexer applications. The switch features three digital select inputs (S0 to S2), eight independent inputs/outputs (Yn), a common input/output (Z) and two digital enable inputs (E1 and E2). With E1 LOW and E2 HIGH, one of the eight switches is selected (low impedance ON-state) by S0 to S2. The data at the select inputs may be latched by using the latch enable input (LE). When LE is HIGH the latch is transparent. When E1 is HIGH or E2 is LOW all 8 analog switches are turned off. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC. 2. Features and benefits • • • • • • • • Wide analog input voltage range from -5 V to +5 V Complies with JEDEC standard no. 7A Low ON resistance: • 80 Ω (typical) at VCC - VEE = 4.5 V • 70 Ω (typical) at VCC - VEE = 6.0 V • 60 Ω (typical) at VCC - VEE = 9.0 V Logic level translation: to enable 5 V logic to communicate with ±5 V analog signals Typical ‘break before make’ built-in Address latches provided ESD protection: • HBM JESD22-A114F exceeds 2000 V • MM JESD22-A115-A exceeds 200 V • CDM JESD22-C101E exceeds 1000 V Specified from -40 °C to +85 °C and -40 °C to +125 °C 3. Applications • • • Analog multiplexing and demultiplexing Digital multiplexing and demultiplexing Signal gating 4. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version -40 °C to +125 °C SO20 plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 74HC4351DB -40 °C to +125 °C SSOP20 plastic shrink small outline package; 20 leads; body width 5.3 mm SOT339-1 74HC4351PW -40 °C to +125 °C TSSOP20 plastic thin shrink small outline package; 20 leads; body width 4.4 mm SOT360-1 74HC4351D 74HCT4351D 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch 5. Functional diagram 20 VCC Y0 S0 15 Y1 S1 13 17 18 S2 12 Y2 19 LE 11 Y3 LOGIC LEVEL CONVERSION AND LATCHES 16 Y4 1-OF-8 DECODER 1 Y5 6 Y6 2 E1 7 E2 8 Y7 5 Z GND 10 Fig. 1. 4 VEE 9 aaa-028752 Functional diagram 15 13 12 0 2D, 1 X 2 0 7 7 15 13 12 S0 Y0 S1 Y1 S2 Y2 Y3 11 LE Y4 Y5 7 8 E1 Y6 E2 Y7 8 17 9 18 19 & C2 MUX/DMUX 16 0 1 1 2 6 4 2 74HC_HCT4351 Product data sheet 4 6 7 4 Logic symbol 3 5 5 Z Fig. 2. G1 17 18 19 16 1 6 2 5 aaa-028754 aaa-028753 Fig. 3. IEC logic symbol All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 2 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch Y VCC VEE VCC VCC VCC VEE VEE from logic Z 001aad544 Fig. 4. Schematic diagram (one switch) 6. Pinning information 6.1. Pinning 74HC4351 74HCT4351 74HC4351 74HCT4351 Y4 1 20 VCC Y6 2 19 Y2 19 Y2 n.c. 3 18 Y1 3 18 Y1 Z 4 17 Y0 Z 4 17 Y0 Y7 5 16 Y3 Y7 5 16 Y3 Y5 6 15 S0 Y5 6 15 S0 E1 7 14 n.c. E1 7 14 n.c. E2 8 13 S1 E2 8 13 S1 9 12 S2 VEE 9 12 S2 VEE GND 10 11 LE GND 10 11 LE Y4 1 20 VCC Y6 2 n.c. aaa-028756 aaa-028755 Fig. 5. Fig. 6. Pin configuration SOT163-1 (SO20) Pin configuration SOT339-1 (SSOP20) and SOT360-1 (TSSOP20) 6.2. Pin description Table 2. Pin description Symbol Pin Description E1 7 enable input (active LOW) E2 8 enable input (active HIGH) LE 11 latch enable input (active LOW) S0, S1, S2 15, 13, 12 select inputs Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7 17, 18, 19, 16, 1, 6, 2, 5 independent input or output Z 4 common output or input VEE 9 supply voltage GND 10 ground (0 V) VCC 20 supply voltage n.c. 3, 14 not connected 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 3 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch 7. Functional description Table 3. Function table H = HIGH voltage level; L = LOW voltage level; X = don’t care; ↓ = HIGH-to-LOW LE transition. Input Channel ON E1 E2 LE S2 S1 S0 H X X X X X none X L X X X X none L H H L L L Y0 L H H L L H Y1 L H H L H L Y2 L H H L H H Y3 L H H H L L Y4 L H H H L H Y5 L H H H H L Y6 L H H H H H Y7 L H L X X X last selected channel “ON” X X ↓ X X X select channels latched 8. Limiting values Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to VSS = 0 V (ground). Symbol Parameter Conditions Max Unit -0.5 +11.0 V VCC supply voltage IIK input clamping current VI < -0.5 V or VI > VCC + 0.5 V - ±20 mA ISK switch clamping current VSW < -0.5 V or VSW > VCC + 0.5 V - ±20 mA ISW switch current -0.5 V < VSW < VCC + 0.5 V - ±25 mA IEE supply current - ±20 mA ICC supply current - 50 mA IGND ground current -50 - mA Tstg storage temperature -65 +150 °C Ptot total power dissipation Tamb = -40 °C to +125 °C - 500 mW P power dissipation per switch - 100 mW [1] [2] [1] Min [2] To avoid drawing VCC current out of terminal Z, when switch current flows into terminals Yn, the voltage drop across the bidirectional switch must not exceed 0.4 V. If the switch current flows into terminal Z, no VCC current will flow out of terminals Yn. In this case there is no limit for the voltage drop across the switch, but the voltages at Yn and Z may not exceed VCC or VEE. For SOT163-1 (SO20) package: Ptot derates linearly with 12.3 mW/K above 109 °C. For SOT339-1 (SSOP20) package: Ptot derates linearly with 10.0 mW/K above 100 °C. For SOT360-1 (TSSOP20) package: Ptot derates linearly with 10.0 mW/K above 100 °C. 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 4 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch 9. Recommended operating conditions Table 5. Recommended operating conditions Symbol Parameter Conditions VCC 74HC4351 74HCT4351 Unit Min Typ Max Min Typ Max 2.0 5.0 10.0 4.5 5.0 5.5 V see Fig. 7 and Fig. 8 supply voltage VCC - GND 2.0 5.0 10.0 2.0 5.0 10.0 V VI input voltage VCC - VEE GND - VCC GND - VCC V VSW switch voltage VEE - VCC VEE - VCC V Tamb ambient temperature -40 +25 +125 -40 +25 +125 °C Δt/ΔV input transition rise and fall rate VCC = 2.0 V - - 625 - - - ns/V VCC = 4.5 V - 1.67 139 - 1.67 139 ns/V VCC = 6.0 V - - 83 - - - ns/V VCC = 10.0 V - - 31 - - - ns/V 001aad545 10 VCC - GND (V) 001aad546 10 VCC - GND (V) 8 8 6 6 operating area operating area 4 4 2 2 0 Fig. 7. 0 2 4 6 Guaranteed operating area as a function of the supply voltages for 74HC4351 74HC_HCT4351 Product data sheet 0 8 10 VCC - VEE (V) Fig. 8. 0 2 4 6 8 10 VCC - VEE (V) Guaranteed operating area as a function of the supply voltages for 74HCT4351 All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 5 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch 10. Static characteristics Table 6. RON resistance per latch for 74HC4351 and 74HCT4351 For test circuit, see Fig. 9 For 74HC4351: VI = VIH or VIL; VCC - GND or VCC - VEE = 2.0 V, 4.5 V, 6.0 V and 9.0 V. For 74HCT4351: VI = VIH or VIL; VCC - GND = 4.5 V and 5.5 V, VCC - VEE = 2.0 V, 4.5 V, 6.0 V and 9.0 V. Symbol Parameter Conditions 25 °C Min Typ Max Min Max Min Max - - - - - - - Ω VCC = 4.5 V; VEE = 0 V; ISW = 1000 μA - 100 180 - 225 - 270 Ω VCC = 6.0 V; VEE = 0 V; ISW = 1000 μA - 90 160 - 200 - 240 Ω VCC = 4.5 V; VEE = -4.5 V; ISW = 1000 μA - 70 130 - 165 - 195 Ω - 150 - - - - - Ω VCC = 4.5 V; VEE = 0 V; ISW = 1000 μA - 80 140 - 175 - 210 Ω VCC = 6.0 V; VEE = 0 V; ISW = 1000 μA - 70 120 - 150 - 180 Ω VCC = 4.5 V; VEE = -4.5 V; ISW = 1000 μA - 60 105 - 130 - 160 Ω - 150 - - - - - Ω VCC = 4.5 V; VEE = 0 V; ISW = 1000 μA - 90 160 - 200 - 240 Ω VCC = 6.0 V; VEE = 0 V; ISW = 1000 μA - 80 140 - 175 - 210 Ω VCC = 4.5 V; VEE = -4.5 V; ISW = 1000 μA - 65 120 - 150 - 180 Ω - - - - - - - Ω - 9 - - - - - Ω - 8 - - - - - Ω - 6 - - - - - Ω RON(peak) ON resistance Vis = VCC to VEE (peak) VCC = 2.0 V; VEE = 0 V; ISW = 100 μA RON(rail) ON resistance Vis = VEE (rail) VCC = 2.0 V; VEE = 0 V; ISW = 100 μA Vis = VCC ON resistance Vis = VCC to VEE mismatch VCC = 2.0 V; VEE = 0 V between VCC = 4.5 V; VEE = 0 V channels VCC = 6.0 V; VEE = 0 V VCC = 4.5 V; VEE = -4.5 V [1] [2] [1] [2] [1] [2] [1] VCC = 2.0 V; VEE = 0 V; ISW = 100 μA ΔRON -40 °C to +85 °C -40 °C to +125 °C Unit [2] [1] [2] Vis is the input voltage at a Yn or Z terminal, whichever is assigned as an input. When supply voltages (VCC - VEE) near 2.0 V the analog switch ON resistance becomes extremely non-linear. When using a supply of 2 V, it is recommended to use these devices only for transmitting digital signals. 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 6 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch mnb047 110 (1) RON (Ω) 90 70 Vsw VCC Sn Yn Vis 30 Z GND VEE 10 Isw 0 1.8 3.6 5.4 7.2 Vis (V) 9.0 Vis = 0 V to (VCC - VEE) (1) VCC = 4.5 V (2) VCC = 6 V (3) VCC = 9 V 001aan389 Vis = 0 V to (VCC - VEE) Fig. 9. (3) 50 V from select input (2) Test circuit for measuring RON Fig. 10. Typical RON as a function of input voltage Vis Table 7. Static characteristics Voltages are referenced to GND (ground = 0 V); Vis is the input voltage at pins Yn or Z, whichever is assigned as an input; Vos is the output voltage at pins Z or Yn, whichever is assigned as an output. Symbol Parameter Conditions 25 °C -40 °C to +85 °C -40 °C to +125 °C Unit Min Typ Max Min Max Min Max VCC = 2.0 V 1.5 1.2 - 1.5 - 1.5 - V VCC = 4.5 V 3.15 2.4 - 3.15 - 3.15 - V VCC = 6.0 V 4.2 3.2 - 4.2 - 4.2 - V VCC = 9.0 V 6.3 4.7 - 6.3 - 6.3 - V VCC = 2.0 V - 0.8 0.5 - 0.5 - 0.5 V VCC = 4.5 V - 2.1 1.35 - 1.35 - 1.35 V VCC = 6.0 V - 2.8 1.8 - 1.8 - 1.8 V VCC = 9.0 V - 4.3 2.7 - 2.7 - 2.7 V VCC = 6.0 V - - ±0.1 - ±1.0 - ±1.0 μA VCC = 10.0 V - - ±0.2 - ±2.0 - ±2.0 μA per channel - - ±0.1 - ±1.0 - ±1.0 μA all channels - - ±0.4 - ±4.0 - ±4.0 μA - - ±0.4 - ±4.0 - ±4.0 μA 74HC4351 VIH VIL II IS(OFF) IS(ON) HIGH-level input voltage LOW-level input voltage input leakage current OFF-state leakage current ON-state leakage current 74HC_HCT4351 Product data sheet VEE = 0 V; VI = VCC or GND VCC = 10.0 V; VEE = 0 V; VI = VIH or VIL; |VSW| = VCC - VEE; see Fig. 11 VCC = 10.0 V; VEE = 0 V; VI = VIH or VIL; |VSW| = VCC - VEE; see Fig. 12 All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 7 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch Symbol Parameter ICC Conditions 25 °C -40 °C to +85 °C -40 °C to +125 °C Unit Min Typ Max Min Max Min Max VCC = 6.0 V - - 8.0 - 80.0 - 160.0 μA VCC = 10.0 V - - 16.0 - 160.0 - 320.0 μA - 3.5 - - - - - pF independent pins Yn - 5 - - - - - pF common pins Z - 25 - - - - - pF supply current VEE = 0 V; VI = VCC or GND; Vis = VEE or VCC; Vos = VCC or VEE CI input capacitance Csw switch capacitance 74HCT4351 VIH HIGH-level input voltage VCC = 4.5 V to 5.5 V 2.0 1.6 - 2.0 - 2.0 - V VIL LOW-level input voltage VCC = 4.5 V to 5.5 V - 1.2 0.8 - 0.8 - 0.8 V II input leakage current VI = VCC or GND; VCC = 5.5 V; VEE = 0 V - - ±0.1 - ±1.0 - ±1.0 μA IS(OFF) OFF-state leakage current VCC = 10.0 V; VEE = 0 V; VI = VIH or VIL; |VSW| = VCC - VEE; see Fig. 11 per channel - - ±0.1 - ±1.0 - ±1.0 μA all channels - - ±0.4 - ±4.0 - ±4.0 μA - - ±0.4 - ±4.0 - ±4.0 μA VCC = 5.5 V; VEE = 0 V - - 8.0 - 80.0 - 160.0 μA VCC = 5.0 V; VEE = -5.0 V - - 16.0 - 160.0 - 320.0 μA inputs E1, E2 and Sn - 50 180 - 225 - 245 μA input LE - 150 540 - 675 - 735 μA - 3.5 - - - - - pF independent pins Yn - 5 - - - - - pF common pins Z - 25 - - - - - pF IS(ON) ON-state leakage current ICC supply current VI = VCC or GND; Vis = VEE or VCC; Vos = VCC or VEE ΔICC VCC = 10.0 V; VEE = 0 V; VI = VIH or VIL; |VSW| = VCC - VEE; see Fig. 12 per input; additional supply current other inputs at VCC or GND; VI = VCC - 2.1 V; VCC = 4.5 V to 5.5 V; VEE = 0 V CI input capacitance Csw switch capacitance 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 8 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch from select input VCC Sn Isw A Vis nYn nZ GND HIGH from select input Isw A Isw A VEE VCC Sn Vos nYn nZ GND Vis Vos VEE 001aah827 001aah828 Vis = VCC and Vos = VEE or Vis = VEE and Vos = VCC Vis = VCC and Vos = open-circuit or Vis = VEE and Vos = open-circuit Fig. 11. Test circuit for measuring OFF-state current Fig. 12. Test circuit for measuring ON-state current 11. Dynamic characteristics Table 8. Dynamic characteristics GND = 0 V; tr = tf = 6 ns; CL = 50 pF; for test circuit see Fig. 16. Vis is the input voltage at pins Yn or Z, whichever is assigned as an input; Vos is the output voltage at pins Z or Yn, whichever is assigned as an output. Symbol Parameter Conditions 25 °C -40 °C to +85 °C -40 °C to +125 °C Unit Min Typ Max Min Max Min Max - 14 60 - 75 - 90 ns VCC = 4.5 V; VEE = 0 V - 5 12 - 15 - 18 ns VCC = 6.0 V; VEE = 0 V - 4 10 - 13 - 15 ns VCC = 4.5 V; VEE = -4.5 V - 4 8 - 10 - 12 ns VCC = 2.0 V; VEE = 0 V - 85 300 - 375 - 450 ns VCC = 4.5 V; VEE = 0 V - 31 60 - 75 - 90 ns VCC = 6.0 V; VEE = 0 V - 25 51 - 64 - 77 ns VCC = 4.5 V; VEE = -4.5 V - 28 55 - 69 - 83 ns VCC = 2.0 V; VEE = 0 V - 85 300 - 375 - 450 ns VCC = 4.5 V; VEE = 0 V - 31 60 - 75 - 90 ns VCC = 6.0 V; VEE = 0 V - 25 51 - 64 - 77 ns VCC = 4.5 V; VEE = -4.5 V - 25 55 - 69 - 83 ns VCC = 2.0 V; VEE = 0 V - 91 300 - 375 - 450 ns VCC = 4.5 V; VEE = 0 V - 33 60 - 75 - 90 ns VCC = 6.0 V; VEE = 0 V - 26 51 - 64 - 77 ns VCC = 4.5 V; VEE = -4.5 V - 27 55 - 69 - 83 ns VCC = 2.0 V; VEE = 0 V - 88 300 - 375 - 450 ns VCC = 4.5 V; VEE = 0 V - 32 60 - 75 - 90 ns VCC = 6.0 V; VEE = 0 V - 26 51 - 64 - 77 ns VCC = 4.5 V; VEE = -4.5 V - 25 50 - 63 - 75 ns 74HC4351 tpd ton propagation Vis to Vos; RL = ∞ Ω; see Fig. 13 delay VCC = 2.0 V; VEE = 0 V turn-ON time [1] E1 to Vos; RL = 1 kΩ; see Fig. 14 E2 to Vos; RL = 1 kΩ; see Fig. 14 LE to Vos; RL = 1 kΩ; see Fig. 14 Sn to Vos; RL = 1 kΩ; see Fig. 14 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 9 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch Symbol Parameter Conditions 25 °C -40 °C to +85 °C -40 °C to +125 °C Unit Min Typ Max Min Max Min Max VCC = 2.0 V; VEE = 0 V - 69 250 - 315 - 375 ns VCC = 4.5 V; VEE = 0 V - 25 50 - 63 - 75 ns VCC = 6.0 V; VEE = 0 V - 20 43 - 54 - 64 ns VCC = 4.5 V; VEE = -4.5 V - 20 40 - 50 - 60 ns VCC = 2.0 V; VEE = 0 V - 72 250 - 315 - 375 ns VCC = 4.5 V; VEE = 0 V - 26 50 - 63 - 75 ns VCC = 6.0 V; VEE = 0 V - 21 43 - 54 - 64 ns VCC = 4.5 V; VEE = -4.5 V - 19 40 - 50 - 60 ns VCC = 2.0 V; VEE = 0 V - 83 275 - 345 - 415 ns VCC = 4.5 V; VEE = 0 V - 30 55 - 69 - 83 ns VCC = 6.0 V; VEE = 0 V - 24 47 - 59 - 71 ns VCC = 4.5 V; VEE = -4.5 V - 26 45 - 56 - 68 ns VCC = 2.0 V; VEE = 0 V - 80 275 - 345 - 415 ns VCC = 4.5 V; VEE = 0 V - 29 55 - 69 - 83 ns VCC = 6.0 V; VEE = 0 V - 23 47 - 59 - 71 ns VCC = 4.5 V; VEE = -4.5 V - 24 48 - 60 - 72 ns VCC = 2.0 V; VEE = 0 V 60 17 - - 75 - 90 ns VCC = 4.5 V; VEE = 0 V 12 6 - - 15 - 18 ns VCC = 6.0 V; VEE = 0 V 10 5 - - 13 - 15 ns VCC = 4.5 V; VEE = -4.5 V 18 9 - - 23 - 27 ns VCC = 2.0 V; VEE = 0 V 5 -8 - - 5 - 5 ns VCC = 4.5 V; VEE = 0 V 5 -3 - - 5 - 5 ns VCC = 6.0 V; VEE = 0 V 5 -2 - - 5 - 5 ns VCC = 4.5 V; VEE = -4.5 V 5 -4 - - 5 - 5 ns LE; RL = 1 kΩ; see Fig. 15 tWH(min) minimum pulse width VCC = 2.0 V; VEE = 0 V HIGH VCC = 4.5 V; VEE = 0 V 100 11 - - 125 - 150 ns 20 1 - - 25 - 30 ns VCC = 6.0 V; VEE = 0 V 17 3 - - 21 - 26 ns VCC = 4.5 V; VEE = -4.5 V 25 7 - - 31 - 38 ns - 25 - - - - - pF - 5 - - - - - pF - 25 - - - - - pF toff turn-OFF time E1 to Vos; RL = 1 kΩ; see Fig. 14 E2 to Vos; RL = 1 kΩ; see Fig. 14 LE to Vos; RL = 1 kΩ; see Fig. 14 Sn to Vos; RL = 1 kΩ; see Fig. 14 tsu thold set-up time Sn to LE; RL = 1 kΩ; see Fig. 15 hold time Sn to LE; RL = 1 kΩ; see Fig. 15 Cpd power per switch; VI = GND to VCC dissipation capacitance Csw maximum switch capacitance independent (Yn) common (Z) 74HC_HCT4351 Product data sheet [2] All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 10 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch Symbol Parameter Conditions 25 °C -40 °C to +85 °C -40 °C to +125 °C Unit Min Typ Max Min Max Min Max - 6 12 - 15 - 18 ns - 4 8 - 10 - 12 ns VCC = 4.5 V; VEE = 0 V - 40 75 - 94 - 113 ns VCC = 4.5 V; VEE = -4.5 V - 31 60 - 75 - 90 ns VCC = 4.5 V; VEE = 0 V - 35 70 - 88 - 105 ns VCC = 4.5 V; VEE = -4.5 V - 26 50 - 63 - 75 ns VCC = 4.5 V; VEE = 0 V - 42 75 - 94 - 113 ns VCC = 4.5 V; VEE = -4.5 V - 37 60 - 75 - 90 ns VCC = 4.5 V; VEE = 0 V - 39 75 - 94 - 113 ns VCC = 4.5 V; VEE = -4.5 V - 30 60 - 75 - 90 ns VCC = 4.5 V; VEE = 0 V - 27 55 - 69 - 83 ns VCC = 4.5 V; VEE = -4.5 V - 20 40 - 50 - 60 ns VCC = 4.5 V; VEE = 0 V - 32 60 - 75 - 90 ns VCC = 4.5 V; VEE = -4.5 V - 26 50 - 63 - 75 ns VCC = 4.5 V; VEE = 0 V - 33 60 - 75 - 90 ns VCC = 4.5 V; VEE = -4.5 V - 30 55 - 69 - 83 ns VCC = 4.5 V; VEE = 0 V - 33 65 - 81 - 98 ns VCC = 4.5 V; VEE = -4.5 V - 29 55 - 69 - 83 ns VCC = 4.5 V; VEE = 0 V 12 6 - - 15 - 18 ns VCC = 4.5 V; VEE = -4.5 V 14 7 - - 18 - 21 ns VCC = 4.5 V; VEE = 0 V 5 -1 - - 5 - 5 ns VCC = 4.5 V; VEE = -4.5 V 5 -2 - - 5 - 5 ns LE; RL = 1 kΩ; see Fig. 15 tWH(min) minimum pulse width VCC = 4.5 V; VEE = 0 V HIGH VCC = 4.5 V; VEE = -4.5 V 25 13 - - 31 - 38 ns 25 13 - - 31 - 38 ns - 25 - - - - - pF 74HCT4351 tpd propagation Vis to Vos; RL = ∞ Ω; see Fig. 13 delay VCC = 4.5 V; VEE = 0 V [1] VCC = 4.5 V; VEE = -4.5 V ton turn-ON time E1 to Vos; RL = 1 kΩ; see Fig. 14 E2 to Vos; RL = 1 kΩ; see Fig. 14 LE to Vos; RL = 1 kΩ; see Fig. 14 Sn to Vos; RL = 1 kΩ; see Fig. 14 toff turn-OFF time E1 to Vos; RL = 1 kΩ; see Fig. 14 E2 to Vos; RL = 1 kΩ; see Fig. 14 LE to Vos; RL = 1 kΩ; see Fig. 14 Sn to Vos; RL = 1 kΩ; see Fig. 14 tsu thold Cpd set-up time Sn to LE; RL = 1 kΩ; see Fig. 15 hold time Sn to LE; RL = 1 kΩ; see Fig. 15 power per switch; dissipation VI = GND to VCC - 1.5 V capacitance 74HC_HCT4351 Product data sheet [2] All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 11 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch Symbol Parameter Conditions 25 °C Min maximum switch capacitance independent (Yn) Csw common (Z) [1] [2] -40 °C to +85 °C -40 °C to +125 °C Unit Typ Max Min Max Min Max - 5 - - - - - pF - 25 - - - - - pF tpd is the same as tPHL and tPLH. CPD is used to determine the dynamic power dissipation (PD in μW). 2 2 PD = CPD x VCC x fi x N + Σ{(CL + Csw) x VCC x fo} where: fi = input frequency in MHz; fo = output frequency in MHz; N = number of inputs switching; 2 Σ{(CL + Csw) x VCC x fo} = sum of outputs; CL = output load capacitance in pF; Csw = switch capacitance in pF; VCC = supply voltage in V. 11.1. Waveforms and test circuit 50 % Vis input tPLH tPHL 50 % Vos output 001aad555 Fig. 13. Input (Vis) to output (Vos) propagation delays VI E2 input VM VM VM VM 0V VI LE, E1, Sn inputs 0V tPLZ tPZL 50 % Vos output 10 % tPHZ tPZH 90 % 50 % Vos output switch on switch off switch on aaa-028757 Measurement points are given in Table 9 Fig. 14. Turn-ON and turn-OFF times 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 12 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch VI Sn input VM VM GND tsu th VI LE input VM VM GND tW aaa-028758 Measurement points are given in Table 9 Fig. 15. Set-up and hold times from Sn inputs to LE input, and minimum pulse width of LE. Table 9. Measurement points Type Input Output VI VM VM 74HC4351 GND to VCC 0.5 x VCC 0.5 x VCC 74HCT4351 GND to 3 V 1.3 V 1.3 V VI negative pulse tW 90 % VM 0V VI positive pulse 0V VM 10 % tf tr tr tf 90 % VM VM 10 % tW VCC Vis PULSE GENERATOR VI VCC Vos RL DUT RT S1 open CL GND VEE 001aae382 Definitions for test circuit; see Table 10: RT = Termination resistance should be equal to the output impedance Zo of the pulse generator. CL = Load capacitance including jig and probe capacitance. RL = Load resistance. S1 = Test selection switch. Fig. 16. Test circuit for measuring switching times 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 13 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch Table 10. Test data Test Input Load VI Vis at fmax other [1] tPZH, tPHZ [2] VCC < 2 ns tPZL, tPLZ [2] VEE Other [2] pulse [1] [2] tr, tf S1 position CL RL 6 ns 50 pF 1 kΩ VEE < 2 ns 6 ns 50 pF 1 kΩ VCC < 2 ns 6 ns 50 pF 1 kΩ open tr = tf = 6 ns; when measuring fmax, there is no constraint to tr and tf with 50 % duty factor. VI values: For 74HC4351: VI = VCC For 74HCT4351: VI = 3 V 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 14 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch 11.2. Additional dynamic characteristics Table 11. Additional dynamic characteristics Recommended conditions and typical values; GND = 0 V; Tamb = 25 °C; CL = 50 pF unless stated otherwise. Vis is the input voltage at pins Yn or Z, whichever is assigned as an input. Vos is the output voltage at pins Yn or Z, whichever is assigned as an output. Symbol Parameter Conditions dsin fi = 1 kHz; RL = 10 kΩ; see Fig. 17 sine-wave distortion Min Typ Max Unit Vis = 4.0 V (p-p); VCC = 2.25 V; VEE = -2.25 V - 0.04 - % Vis = 8.0 V (p-p); VCC = 4.5 V; VEE = -4.5 V - 0.02 - % Vis = 4.0 V (p-p); VCC = 2.25 V; VEE = -2.25 V - 0.12 - % Vis = 8.0 V (p-p); VCC = 4.5 V; VEE = -4.5 V - 0.06 - % fi = 10 kHz; RL = 10 kΩ; see Fig. 17 αiso isolation (OFF-state) Vct crosstalk voltage f(-3dB) [1] [2] -3 dB frequency response RL = 600 Ω; fi = 1 MHz; see Fig. 18 VCC = 2.25 V; VEE = -2.25 V [1] - -50 - dB VCC = 4.5 V; VEE = -4.5 V [1] - -50 - dB VCC = 4.5 V; VEE = 0 V - 120 - mV VCC = 4.5 V; VEE = -4.5 V - 220 - mV between control and any switch (peak-to-peak value); RL = 600 Ω; fi = 1 MHz; E1, E2 or Sn square wave between VCC and GND; tr = tf = 6 ns; see Fig. 19 RL = 50 Ω; CL = 10 pF see Fig. 20 VCC = 2.25 V; VEE = -2.25 V [2] - 160 - MHz VCC = 4.5 V; VEE = -4.5 V [2] - 170 - MHz Adjust input voltage Vis to 0 dBm level (0 dBm = 1 mW into 600 Ω). Adjust input voltage Vis to 0 dBm level at Vos for 1 MHz (0 dBm = 1 mW into 50 Ω). VCC Sn Vis 10 µF Yn/Z Z/Yn VEE GND Vos RL CL dB 001aan385 Fig. 17. Test circuit for measuring sine-wave distortion 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 15 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch VCC Sn 0.1 µF Vis Yn/Z Z/Yn VEE GND Vos RL CL dB 001aan386 VCC = 4.5 V; GND = 0 V; VEE = -4.5 V; RL = 600 Ω; RS = 1 kΩ a. Test circuit 001aae332 0 α iso (dB) - 20 - 40 - 60 - 80 - 100 102 10 103 104 105 fi (kHz) 106 b. Isolation (OFF-state) as a function of frequency Fig. 18. Test circuit for measuring isolation (OFF-state) 2RL Sn, E Vct Yn G 2RL 2RL VCC Z VEE GND 2RL oscilloscope 001aan387 Fig. 19. Test circuit for measuring crosstalk between control input and any switch 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 16 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch VCC Sn Vis 10 µF Yn/Z Z/Yn VEE GND Vos RL CL dB 001aan385 VCC = 4.5 V; GND = 0 V; VEE = -4.5 V; RL = 50 Ω; RS = 1 kΩ a. Test circuit 001aad551 5 Vos (dB) 3 1 -1 -3 -5 10 102 103 104 105 f (kHz) 106 b. Typical frequency response Fig. 20. Test circuit for frequency response 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 17 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch 12. Package outline SO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 D E A X c y HE v M A Z 20 11 Q A2 A (A 3 ) A1 pin 1 index θ Lp L 1 10 e detail X w M bp 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y mm 2.65 0.3 0.1 2.45 2.25 0.25 0.49 0.36 0.32 0.23 13.0 12.6 7.6 7.4 1.27 10.65 10.00 1.4 1.1 0.4 1.1 1.0 0.25 0.25 0.1 0.9 0.4 inches 0.1 0.012 0.096 0.004 0.089 0.01 0.019 0.013 0.014 0.009 0.51 0.49 0.30 0.29 0.05 0.419 0.043 0.055 0.394 0.016 0.043 0.039 0.01 0.01 0.004 0.035 0.016 Z (1) θ o 8 o 0 Note 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC SOT163-1 075E04 MS-013 JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19 Fig. 21. Package outline SOT163-1 (SO20) 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 18 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm D SOT339-1 E A X c HE y v M A Z 20 11 Q A2 pin 1 index A (A 3) A1 θ Lp L 1 10 bp e detail X w M 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y Z (1) θ mm 2 0.21 0.05 1.80 1.65 0.25 0.38 0.25 0.20 0.09 7.4 7.0 5.4 5.2 0.65 7.9 7.6 1.25 1.03 0.63 0.9 0.7 0.2 0.13 0.1 0.9 0.5 8o 0o Note 1. Plastic or metal protrusions of 0.2 mm maximum per side are not included. OUTLINE VERSION SOT339-1 REFERENCES IEC JEDEC JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19 MO-150 Fig. 22. Package outline SOT339-1 (SSOP20) 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 19 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm D SOT360-1 E A X c HE y v M A Z 11 20 Q A2 pin 1 index (A 3 ) A1 A θ Lp 1 L 10 detail X w M bp e 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (2) e HE L Lp Q v w y Z (1) θ mm 1.1 0.15 0.05 0.95 0.80 0.25 0.30 0.19 0.2 0.1 6.6 6.4 4.5 4.3 0.65 6.6 6.2 1 0.75 0.50 0.4 0.3 0.2 0.13 0.1 0.5 0.2 8o 0o Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT360-1 REFERENCES IEC JEDEC JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19 MO-153 Fig. 23. Package outline SOT360-1 (TSSOP20) 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 20 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch 13. Abbreviations Table 12. Abbreviations Acronym Description CDM Charged Device Model DUT Device Under Test ESD ElectroStatic Discharge HBM Human Body Model MM Machine Model 14. Revision history Table 13. Revision history Document ID Release date Data sheet status Change notice Supersedes 74HC_HCT4351 v.4 20210804 Product data sheet - 74HC_HCT4351 v.3 Modifications: • • • 74HC_HCT4351 v.3 20180709 Modifications: • • • 74HC_HCT4351 v.2 74HC_HCT4351 Product data sheet Type number 74HC4351PW (SOT360-1/TSSOP20) added. Type number 74HCT4351DB (SOT339-1/SSOP20) removed. Section 8: Derating values for Ptot total power dissipation updated. Product data sheet - 74HC_HCT4351 v.2 The format of this data sheet has been redesigned to comply with the identity guidelines of Nexperia. Legal texts have been adapted to the new company name where appropriate. Type numbers 74HC4351N (SOT146-1) and 74HCT4351N (SOT146-1) removed. 19901201 Product specification - All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 74HC_HCT4351 v.1 © Nexperia B.V. 2021. All rights reserved 21 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch 15. Legal information injury, death or severe property or environmental damage. Nexperia and its suppliers accept no liability for inclusion and/or use of Nexperia products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk. Data sheet status Quick reference data — The Quick reference data is an extract of the product data given in the Limiting values and Characteristics sections of this document, and as such is not complete, exhaustive or legally binding. Document status [1][2] Product status [3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification. [1] [2] [3] Please consult the most recently issued document before initiating or completing a design. The term 'short data sheet' is explained in section "Definitions". The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the internet at https://www.nexperia.com. Definitions Draft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. Nexperia does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet — A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local Nexperia sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. Product specification — The information and data provided in a Product data sheet shall define the specification of the product as agreed between Nexperia and its customer, unless Nexperia and customer have explicitly agreed otherwise in writing. In no event however, shall an agreement be valid in which the Nexperia product is deemed to offer functions and qualities beyond those described in the Product data sheet. Disclaimers Limited warranty and liability — Information in this document is believed to be accurate and reliable. However, Nexperia does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Nexperia takes no responsibility for the content in this document if provided by an information source outside of Nexperia. In no event shall Nexperia be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, Nexperia’s aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of Nexperia. Right to make changes — Nexperia reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use — Nexperia products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an Nexperia product can reasonably be expected to result in personal 74HC_HCT4351 Product data sheet Applications — Applications that are described herein for any of these products are for illustrative purposes only. Nexperia makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using Nexperia products, and Nexperia accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the Nexperia product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. Nexperia does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customer(s). Customer is responsible for doing all necessary testing for the customer’s applications and products using Nexperia products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). Nexperia does not accept any liability in this respect. Limiting values — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the Recommended operating conditions section (if present) or the Characteristics sections of this document is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. Terms and conditions of commercial sale — Nexperia products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nexperia.com/profile/terms, unless otherwise agreed in a valid written individual agreement. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. Nexperia hereby expressly objects to applying the customer’s general terms and conditions with regard to the purchase of Nexperia products by customer. No offer to sell or license — Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from competent authorities. Non-automotive qualified products — Unless this data sheet expressly states that this specific Nexperia product is automotive qualified, the product is not suitable for automotive use. It is neither qualified nor tested in accordance with automotive testing or application requirements. Nexperia accepts no liability for inclusion and/or use of non-automotive qualified products in automotive equipment or applications. In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without Nexperia’s warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond Nexperia’s specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies Nexperia for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond Nexperia’s standard warranty and Nexperia’s product specifications. Translations — A non-English (translated) version of a document is for reference only. The English version shall prevail in case of any discrepancy between the translated and English versions. Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 22 / 23 74HC4351; 74HCT4351 Nexperia 8-channel analog multiplexer/demultiplexer with latch Contents 1. General description...................................................... 1 2. Features and benefits.................................................. 1 3. Applications.................................................................. 1 4. Ordering information....................................................1 5. Functional diagram.......................................................2 6. Pinning information......................................................3 6.1. Pinning.........................................................................3 6.2. Pin description............................................................. 3 7. Functional description................................................. 4 8. Limiting values............................................................. 4 9. Recommended operating conditions..........................5 10. Static characteristics..................................................6 11. Dynamic characteristics.............................................9 11.1. Waveforms and test circuit.......................................12 11.2. Additional dynamic characteristics........................... 15 12. Package outline........................................................ 18 13. Abbreviations............................................................ 21 14. Revision history........................................................21 15. Legal information......................................................22 © Nexperia B.V. 2021. All rights reserved For more information, please visit: http://www.nexperia.com For sales office addresses, please send an email to: salesaddresses@nexperia.com Date of release: 4 August 2021 74HC_HCT4351 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 4 — 4 August 2021 © Nexperia B.V. 2021. All rights reserved 23 / 23
74HC4351D,653 价格&库存

很抱歉,暂时无法提供与“74HC4351D,653”相匹配的价格&库存,您可以联系我们找货

免费人工找货
74HC4351D,653
  •  国内价格 香港价格
  • 2000+3.677292000+0.44167
  • 4000+3.580654000+0.43007
  • 6000+3.532296000+0.42426
  • 10000+3.4786610000+0.41782
  • 14000+3.4473414000+0.41406
  • 20000+3.4172120000+0.41044

库存:5783

74HC4351D,653
  •  国内价格 香港价格
  • 1+7.699411+0.92476
  • 10+5.5485610+0.66643
  • 25+5.0003625+0.60059
  • 100+4.39812100+0.52825
  • 250+4.11055250+0.49371
  • 500+3.93732500+0.47291
  • 1000+3.794641000+0.45577

库存:5783