74AVCH4T245BQ: 4位双电源转换收发器,带可配置电压转换功能;3态

74AVCH4T245是4位双电源收发器,可实现双向电平转换。该器件可用作两个2位收发器或一个4位收发器。该器件具有两个2位输入输出端口(nAn和nBn)、一个方向控制输入(nDIR)、一个输出使能输入(nOE)和双电源针脚(VCC(A)和VCC(B))。VCC(A)和VCC(B)都可以是0.8 V和3.6 V之间的任何电压,因此该器件适用于任何低压节点(1.2 V、1.5 V、1.8 V、2.5 V和3.3 V)之间的转换。针脚nAn、nOE和nDIR以VCC(A)为基准,针脚nBn以VCC(B)为基准。nDIR上的高电平允许从nAn到nBn的传输,而nDIR上的低电平则允许从nBn到nAn的传输。输出使能输入(nOE)可用于禁用输出,因此总线能得到有效隔离。

该器件完全适合使用IOFF的局部掉电应用。IOFF电路可禁用输出,防止断电时任何破坏性回流电流通过该器件。在挂起模式下,只要VCC(A)或VCC(B)这两者的其中之一处于GND电平,nAn和nBn输出就都处于高阻抗关断状态。通电侧的总线保持电路始终保持有源状态。

74AVCH4T245具有有源总线保持电路,提供该电路是为了使未使用的或浮动的数据输入保持在有效逻辑电平。该器件因此特性而无需外部上拉或下拉电阻。

74AVCH4T245BQ: 产品结构框图
Outline 3d SOT763-1
数据手册 (1)
名称/描述Modified Date
4-bit dual supply translating transceiver with configurable voltage translation; 3-state (REV 5.0) PDF (192.0 kB) 74AVCH4T245 [English]17 Dec 2015
应用说明 (2)
名称/描述Modified Date
Sorting through the low voltage logic maze (REV 1.0) PDF (72.0 kB) AN10156 [English]13 Mar 2013
Live Insertion Aspects of Philips Logic Families (REV 1.0) PDF (73.0 kB) AN252 [English]13 Mar 2013
手册 (2)
名称/描述Modified Date
電圧レベルシフタ (REV 1.1) PDF (3.1 MB) 75017511_JP [English]16 Feb 2015
Voltage translation: How to manage mixed-voltage designs with NXP® level translators (REV 1.0) PDF (2.6 MB) 75017511 [English]20 May 2014
选型工具指南 (2)
名称/描述Modified Date
Application guide: Flat-panel TV sets (REV 2.1) PDF (3.2 MB) 75017085 [English]13 Mar 2012
Application guide; Portable devices and mobile handsets (REV 2.0) PDF (15.4 MB) 75017090 [English]13 Mar 2012
封装信息 (1)
名称/描述Modified Date
plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 16 terminals; body 2.5 x 3.5 x... (REV 1.1) PDF (191.0 kB) SOT763-1 [English]30 May 2016
包装 (1)
名称/描述Modified Date
DHVQFN16; Reel pack, SMD, 7" Q1/T1 standard product orientation Orderable part number ending ,115 or... (REV 2.0) PDF (191.0 kB) SOT763-1_115 [English]05 Jul 2016
订购信息
型号状态FamilyVCC(A) (V)功能VCC(B) (V)说明Package versionLogic switching levelsOutput drive capability (mA)tpd (ns)No of bitsPower dissipation considerationsTamb (Cel)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package nameNo of pins
74AVCH4T245BQActiveAVC(M)0.8 - 3.6Level shifters/translators0.8 - 3.64-bit dual-supply voltage translating transceiver with bus hold (3-state)SOT763-1CMOS/LVTTL+/- 122.14very low-40~1259213.161DHVQFN1616
封装环保信息
产品编号封装说明Outline Version回流/波峰焊接包装产品状态部件编号订购码 (12NC)Marking化学成分RoHS / 无铅 / RHF无铅转换日期MSLMSL LF
74AVCH4T245BQSOT763-1Reel 7" Q1/T1Active74AVCH4T245BQ,115 (9352 845 87115)H4T24574AVCH4T245BQAlways Pb-free11
4-bit dual supply translating transceiver with configurable voltage translation; 3-state 74AVCH4T245PW
Sorting through the low voltage logic maze 74LVC_H_245A_Q100
Live Insertion Aspects of Philips Logic Families 74HC_T_245_Q100
電圧レベルシフタ 74AVC16245DGG-Q100
Voltage translation: How to manage mixed-voltage designs with NXP® level translators 74AVC16245DGG-Q100
Application guide: Flat-panel TV sets mmbz33vcl
Application guide; Portable devices and mobile handsets pesd24vs1ul
plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 16 terminals; body 2.5 x 3.5 x... NPIC6C596A_Q100
DHVQFN16; Reel pack, SMD, 7" Q1/T1 standard product orientation Orderable part number ending ,115 or... NPIC6C596A_Q100
TFF1024HN