NXP dual-supply voltage translators Low-power, high-speed, dual-supply voltage translation (0.8 to 5.5 V) Available in a variety of innovative packages and with varying bit counts, these highly efficient dual-supply devices perform voltage translation in the ranges of 0.8 to 3.6 V and 1.2 to 5.5 V with direction control and auto-direction sensing options. Key features } Direction-control and auto-direction devices } High speed } Low power (typical CPD = 2 pF at Vcc = 1.8 V) } Live insertion and extraction } 3-state and open-drain output options } Bus-hold function Benefits } Bidirectional data flow } Very low power consumption } Devices can be inserted or removed with system power on } High-impedance suspend mode } Reduced number of external components with no floating inputs Applications } Personal and enterprise computing systems } Industrial automation and instrumentation } Battery-operated systems } Telecom switching terminals } Consumer electronics The NXP logic families AVC, AUP, LVC, and NT support designs that use a mix of supply voltages, ranging from 0.8 to 5.5 V. The output signals of one device can be translated up or down to match the input thresholds of another as required. Options include bidirectional, dual-supply translators in 1-, 2-, 4-, 8-, 16- and 20-bit formats. This covers the translation voltage ranges of 0.8 to 3.6 V and 1.2 to 5.5 V, making these devices ideal for designs that use supply voltages of 1.2, 1.8, 2.5, 3.3 and 5.0 V. Since these small footprint translators feature reduced standby and switching currents, they consume very low power while reducing the area required for battery-powered systems. Typical propagation delays are only 2 to 4 ns, with an output drive up to +/- 32 mA. In devices with a direction control pin, DIR dictates whether the translation is from the A port to B port or from the B port to A port. Integrated IOFF circuitry eliminates damaging backflow current when outputs are disabled during suspend or powerdown mode. The NT family of auto-direction sense devices have onboard circuitry to automatically change direction. This removes the external direction pin resulting in a smaller package. Voltage-translator configurations Package options include dark green, RoHS compliant and halogen free formats, such as SOIC, TSSOP and the groundbreaking leadless DQFN and DRQFN packages. Low pin-count devices are also available in space-saving MicroPak and PicoGate packages. Functional description User defined direction control The 74LVC2T45 is a common example of a dual-supply translation buffer with user defined direction control input. The logic diagram is shown on the right. VCC(A) and VCC(B) can be supplied at any voltage between 1.2 and 5.5 V. A HIGH on DIR allows transmission from A port to B port and a LOW on DIR allows transmission from B port to A port. Bus hold is included as an option in voltage level translating transceivers with user defined direction control. It is indicated by the addition of an H after the family in the device name. Active bus hold circuitry in the 74LVCH2T45 prevents floating inputs by holding unused data inputs at a valid logic level. The bus hold circuit acts as an input latch, retaining the last data driven. When power is initially applied the logic state of the bus hold latch is not guaranteed, it may power-up HIGH or LOW. If a default logic state is required external resistors will be required, these should be sized to overdrive the inputs bus hold current to avoid contention issues. The ‘nT45 function Devices with 4 channels and above also include an output enable control pin OE. A LOW on OE will enable the outputs, a HIGH on OE will cause the outputs to assume the high-impedance OFF-state. The control pins and A port are referenced to supply VCC(A). The B port is referenced to VCC(B). 4T, 16T & 20T have 2 DIR & OE pins each controls half the I/O’s. 8T has one DIR and OE pin The ‘nT245 function The devices are fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preventing any damaging backflow current through the device when it is powered down. In suspend mode when either VCC(A) or VCC(B) are at GND level, both A port and B port are in the high-impedance OFF-state. Auto direction sensing The NT family of dual-supply translators (NTS-, NTB-, and NTSX-) incorporate automatic direction control logic. This removes the need for an external direction pin and the associated external control logic. Architecture of NTS- I/O cell (one channel) Output edge-rate accelerator In addition, the NT family includes output edge-rate accelerators to improve LOW-to-HIGH transition time (NTS devices) or both HIGH-to-LOW and LOW-to-HIGH (NTB and NTSX devices). During a transition the output one-shot switches on the NMOS transistor (HIGH-toLOW transitions) or the PMOS transistor (LOW-to-HIGH transitions). This lowers the output impedance increasing current drive and reducing the output transition time. The one-shot is activated once the input transition reaches half of its reference supply voltage; it is de-activated approximately 50 ns after the output reaches half of its reference supply voltage. To avoid signal contention and minimize dynamic Icc, the user should wait for the one-shot Architecture of NTB- I/O cell (one channel) circuit to turn-off before applying a signal in the opposite direction. Output configuration NTSX outputs have no static drive capability; pull-up resistors are required on both data ports. NTS outputs include integrated 10 kΩ pull-up resistors which are disabled when the output enable input is set LOW. NTB has low drive push-pull outputs which do not require external resistors, if a pull-up resistor is used it should be greater than 50 kΩ to avoid contention issues. Power sequencing No special power up sequence is required for NXP’s nT245, nT45 user defined direction control translator functions or the NT family of auto-direction sensing translators. Either VCC(A) or VCC(B) can be applied first. Architecture of NTSX- I/O cell (one channel) Dual supply translators with direction control pin Type number Description VCC(A) (V) VCC(B) (V) Output drive (mA) tpd (ns) Tamb (°C) Package type Package drawing SOT1134-2 74ALVC164245BX 16-bit transceiver (3-state) 1.5 - 5.5 1.5 - 3.6 +/- 24 2.9 -40~85 HXQFN60 74ALVC164245DGG 16-bit transceiver (3-state) 1.5 - 5.5 1.5 - 3.6 +/- 24 2.9 -40~85 TSSOP48 SOT362-1 74ALVC164245DL 16-bit transceiver (3-state) 1.5 - 5.5 1.5 - 3.6 +/- 24 2.9 -40~85 SSOP48 SOT370-1 74AUP1T34GF single translating buffer 1.1 - 3.6 1.1 - 3.6 +/- 1.9 15.2 -40~125 XSON6 SOT891 74AUP1T34GM single translating buffer 1.1 - 3.6 1.1 - 3.6 +/- 1.9 15.2 -40~125 XSON6 SOT886 74AUP1T34GN single translating buffer 1.1 - 3.6 1.1 - 3.6 +/- 1.9 15.2 -40~125 XSON6 SOT1115 74AUP1T34GS single translating buffer 1.1 - 3.6 1.1 - 3.6 +/- 1.9 15.2 -40~125 XSON6 SOT1202 SOT353-1 74AUP1T34GW single translating buffer 1.1 - 3.6 1.1 - 3.6 +/- 1.9 15.2 -40~125 XSON6 74AUP1T45GF single transceiver (3-state) 1.1 - 3.6 1.1 - 3.6 +/- 1.9 15.6 -40~125 XSON6 SOT891 74AUP1T45GM single transceiver (3-state) 1.1 - 3.6 1.1 - 3.6 +/- 1.9 15.6 -40~125 XSON6 SOT886 74AUP1T45GN single transceiver (3-state) 1.1 - 3.6 1.1 - 3.6 +/- 1.9 15.6 -40~125 XSON6 SOT1115 74AUP1T45GS single transceiver (3-state) 1.1 - 3.6 1.1 - 3.6 +/- 1.9 15.6 -40~125 XSON6 SOT1202 74AUP1T45GW single transceiver (3-state) 1.1 - 3.6 1.1 - 3.6 +/- 1.9 15.6 -40~125 TSSOP6 SOT363 74AVC(H)16T245BX 16-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 HXQFN60 SOT1134-2 74AVC(H)16T245DGG 16-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 TSSOP48 SOT362-1 74AVC(H)16T245DGV 16-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 TSSOP48 SOT480-1 SOT702-1 74AVC(H)16T245EV 16-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 VFBGA56 74AVC(H)1T45GM single transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 XSON6 SOT886 74AVC(H)1T45GN single transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 XSON6 SOT1115 SOT1202 74AVC(H)1T45GS single transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 XSON6 74AVC(H)1T45GW single transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 TSSOP6 SOT363 74AVC20T245BX 20-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 3.5 -40~125 HXQFN60 SOT1134-2 74AVC(H)20T245DGG 20-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 3.5 -40~125 TSSOP56 SOT364-1 74AVC(H)20T245DGV 20-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 3.5 -40~125 TSSOP56 SOT481-2 74AVC(H)2T45DC dual-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 VSSOP8 SOT765-1 74AVC2T45DP dual-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 TSSOP8 SOT505-2 SOT996-2 74AVC(H)2T45GD dual-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 XSON8 74AVC(H)2T45GF dual-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 XSON8 SOT1089 74AVC(H)2T45GN dual-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 XSON8 SOT1116 74AVC(H)2T45GS dual-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 XSON8 SOT1203 74AVC(H)2T45GT dual-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 XSON8 SOT833-1 74AVC32T245EC 32-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 LFBGA96 SOT536-1 74AVC(H)4T245BQ 4-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 DHVQFN16 SOT763-1 74AVC(H)4T245D 4-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 SO16 SOT109-1 74AVC(H)4T245GU 4-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 XQFN16 SOT1161-1 74AVC(H)4T245PW 4-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 TSSOP16 SOT403-1 74AVC4TD245BQ 4-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 DHVQFN16 SOT763-1 SOT1161-1 74AVC4TD245GU 4-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 XQFN16 74AVC4TD245PW 4-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 TSSOP16 SOT403-1 74AVC(H)8T245BQ 8-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 DHVQFN24 SOT815-1 74AVC(H)8T245PW 8-bit transceiver (3-state) 0.8 - 3.6 0.8 - 3.6 +/- 12 2.1 -40~125 TSSOP24 SOT355-1 74LVC(H)1T45GF single transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 2.5 -40~125 XSON6 SOT891 74LVC(H)1T45GM single transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 2.5 -40~125 XSON6 SOT886 74LVC(H)1T45GN single transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 2.5 -40~125 XSON6 SOT1115 SOT1202 74LVC(H)1T45GS single transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 2.5 -40~125 XSON6 74LVC(H)1T45GW single transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 2.5 -40~125 TSSOP6 SOT363 74LVC(H)2T45DC dual-bit transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 2.5 -40~125 VSSOP8 SOT765-1 SOT996-2 74LVC(H)2T45GD dual-bit transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 2.5 -40~125 XSON8 74LVC(H)2T45GF dual-bit transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 2.5 -40~125 XSON8 SOT1089 74LVC(H)2T45GM dual-bit transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 2.5 -40~125 XQFN8 SOT902-1 74LVC(H)2T45GN dual-bit transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 2.5 -40~125 XSON8 SOT1116 74LVC(H)2T45GS dual-bit transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 2.5 -40~125 XSON8 SOT1203 74LVC(H)2T45GT dual-bit transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 2.5 -40~125 XSON8 SOT833-1 74LVC(H)8T245BQ 8-bit transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 3.5 -40~125 DHVQFN24 SOT815-1 74LVC(H)8T245PW 8-bit transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 3.5 -40~125 TSSOP24 SOT355-1 74LVC4245ABQ 8-bit transceiver (3-state) 1.2 - 5.5 1.2 - 5.5 +/- 24 3.5 -40~125 DHVQFN24 SOT815-1 74LVC4245AD 8-bit transceiver (3-state) 1.5 - 5.5 1.5 - 3.6 +/- 24 4 -40~125 SO24 SOT137-1 74LVC4245ADB 8-bit transceiver (3-state) 1.5 - 5.5 1.5 - 3.6 +/- 24 4 -40~125 SSOP24 SOT340-1 74LVC4245APW 8-bit transceiver (3-state) 1.5 - 5.5 1.5 - 3.6 +/- 24 4 -40~125 TSSOP24 SOT355-1 Dual supply translators with auto-direction sensing Type number Description NTB0101GF single transceiver (3-state) VCC(A) (V) VCC(B) (V) Output drive (mA) tpd (ns) Tamb (°C) Package type Package drawing 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 XSON6 SOT891 NTB0101GM single transceiver (3-state) 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 XSON6 SOT886 NTB0101GS single transceiver (3-state) 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 XSON6 SOT1202 NTB0101GW single transceiver (3-state) 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 TSSOP6 SOT363 NTB0102DP dual-bit transceiver (3-state) 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 TSSOP8 SOT505-2 NTB0102GD dual-bit transceiver (3-state) 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 XSON8 SOT996-2 NTB0102GF dual-bit transceiver (3-state) 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 XSON8 SOT1089 NTB0102GT dual-bit transceiver (3-state) 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 XSON8 SOT833-1 NTB0102GU dual-bit transceiver (3-state) 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 XQFN10 SOT1160-1 NTB0104BQ 4-bit transceiver (3-state) 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 DHVQFN14 SOT762-1 NTB0104GU12 4-bit transceiver (3-state) 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 XQFN12 SOT1174-1 NTB0104UK 4-bit transceiver (3-state) 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 WLCSP12 OL-NTB0104UK NTBA104BQ 4-bit transceiver (3-state) 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 DHVQFN14 SOT762-1 NTBA104GU12 4-bit transceiver (3-state) 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 XQFN12 SOT1174-1 NTBA104GU16 4-bit transceiver (3-state) 1.2 - 3.6 1.65 - 5.5 +/- 0.02 3.8 -40~125 XQFN16 SOT1161-1 NTS0101GF single transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 XSON6 SOT891 NTS0101GM single transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 XSON6 SOT886 NTS0101GS single transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 XSON6 SOT1202 NTS0101GW single transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 TSSOP6 SOT363 NTS0102DP dual-bit transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 TSSOP8 SOT505-2 NTS0102GD dual-bit transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 XSON8 SOT996-2 NTS0102GF dual-bit transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 XSON8 SOT1089 NTS0102GT dual-bit transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 XSON8 SOT833-1 NTS0102GU dual-bit transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 XQFN10 SOT1160-1 NTS0102GU8 dual-bit transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 XQFN8 SOT1309-1 NTS0103GU10 3-bit transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 XQFN10 SOT1160-1 NTS0104BQ 4-bit transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 DHVQFN14 SOT762-1 NTS0104GU12 4-bit transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 XQFN12 SOT1174-1 NTS0104PW 4-bit transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 TSSOP14 SOT402-1 NTS0104UK 4-bit transceiver (3-state) 1.65 - 3.6 2.3 - 5.5 -0.02 4.4 -40~125 WLCSP12 OL-NTS0104UK NTSX2102 dual-bit transceiver (open-drain) 1.65 - 5.5 1.65 - 5.5 -6.0 4 -40~125 XQFN8 SOT902-2 NTSX2102 dual-bit transceiver (open-drain) 1.65 - 5.5 1.65 - 5.5 -6.0 4.0 -40~125 XQFN8 SOT1309-1 NTSX2102 dual-bit transceiver (open-drain) 1.65 - 5.5 1.65 - 5.5 -6.0 4 -40~125 XQFN8 SOT996-2 For more information about our NT auto direction sensing translator portfolio visit http://www.nxp.com/products/logic/family/NT/ Packages Package suffix Package GW GF GW GV GS GM GT GF 5 6 6 6 6 6 8 8 SOT353 SOT891 SOT363 SOT457 SOT1202 SOT886 SOT833 SOT1089 Width (mm) 2.10 1.00 2.10 2.80 1.00 1.00 1.00 1.35 Length (mm) 2.00 1.00 2.00 1.50 1.00 1.45 1.95 1.00 Pitch (mm) 0.65 0.35 0.65 0.95 0.35 0.50 0.50 0.35 GU-8 GM GD DP GU GF UK GU-12 8 8 8 8 10 10 12 12 SOT1309 SOT902 SOT996 SOT505 SOT1160 SOT1081-2 WLCSP12 SOT1174 Package suffix Package Width (mm) 1.40 1.60 3.00 3.00 1.40 1.70 1.60 1.70 Length (mm) 1.20 1.60 2.00 3.00 1.80 1.00 1.20 2.00 Pitch (mm) 0.40 0.50 0.50 0.65 0.40 0.35 0.40 0.40 Package suffix BQ PW GU-16 BQ PW D BQ PW 14 14 16 16 16 16 24 24 SOT762 SOT402-1 SOT1161 SOT763-1 SOT403-1 SOT109-1 SOT815-1 SOT355-1 3.00 5.00 1.80 2.50 6.40 6.00 3.50 6.40 Length (mm) 2.50 4.40 2.60 3.50 5.00 9.90 5.50 7.80 Pitch (mm) 0.50 0.65 0.40 0.50 0.65 1.27 0.50 0.65 Package Width (mm) Package suffix D DGV DGG DGV DGV DGG BQ EC 24 48 48 56 56 56 60 96 SOT137-1 SOT480-1 SOT362-1 SOT481-2 SOT481-2 SOT364-1 SOT1134 SOT536-1 15.50 6.40 8.10 6.40 6.40 8.10 4.00 13.5 Length (mm) 7.50 10.10 12.50 11.30 11.30 14.00 6.00 5.5 Pitch (mm) 1.27 0.40 0.50 0.40 0.40 0.50 0.50 0.8 Package Width (mm) For more information visit http://www.nxp.com/products/logic/level_shifters_translators/ http://www.nxp.com/products/automotive/logic/level_shifters_translators/ MicroPak is a trademark of Fairchild Semiconductors Corporation www.nxp.com © 2013 NXP Semiconductors N.V. All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The Date of release: February 2013 information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and Document order number: 9397 750 17389 may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof Printed in the Netherlands does not convey nor imply any license under patent- or other industrial or intellectual property rights.