74AVCH20T245
20-bit dual supply translating transceiver with configurable voltage translation; 3-state
The 74AVCH20T245 is a 20-bit, dual supply transceiver that enables bi-directional voltage level translation. The device can be used as two 10-bit transceivers or as a single 20-bit transceiver. It features four 10-bit input-output ports (1An, 1Bn and 2An, 2Bn), two output enable inputs (nOE), two direction inputs (nDIR) and dual supplies (VCC(A) and VCC(B)). VCC(A) and VCC(B) can be independently supplied at any voltage between 0.8 V and 3.6 V making the device suitable for bi?-?directional voltage level translation between any of the low voltage nodes: 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V. The 1An and 2An ports, nOE and nDIR are referenced to VCC(A), the 1Bn and 2Bn ports are referenced to VCC(B). A HIGH on a 1DIR allows transmission from 1An to 1Bn and a LOW on 1DIR allows transmission from 1Bn to 1An. A HIGH on nOE causes the outputs to assume a HIGH impedance OFF-state.
The device is 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, all output ports will assume a high impedance OFF-state. The bus hold circuitry on the powered-up side always stays active.
The 74AVCH20T245 has active bus hold circuitry which is provided to hold unused or floating data inputs at a valid logic level. This feature eliminates the need for external pull-up or pull-down resistors.
Features and benefits
Wide supply voltage range: VCC(A): 0.8 V to 3.6 V; VCC(B): 0.8 V to 3.6 V
Complies with JEDEC standards:
JESD8-12 (0.8 V to 1.3 V)
JESD8-11 (0.9 V to 1.65 V)
JESD8-7 (1.2 V to 1.95 V)
JESD8-5 (1.8 V to 2.7 V)
JESD8-B (2.7 V to 3.6 V)
Maximum data rates:
380 Mbit/s (≥ 1.8 V to 3.3 V translation)
260 Mbit/s (≥ 1.1 V to 3.3 V translation)
260 Mbit/s (≥ 1.1 V to 2.5 V translation)
210 Mbit/s (≥ 1.1 V to 1.8 V translation)
120 Mbit/s (≥ 1.1 V to 1.5 V translation)
100 Mbit/s (≥ 1.1 V to 1.2 V translation)
Suspend mode
Bus hold on data inputs
Latch-up performance exceeds 100 mA per JESD 78 Class II
Inputs accept voltages up to 3.6 V
IOFF circuitry provides partial Power-down mode operation
ESD protection:
HBM: ANSI/ESDA/JEDEC JS-001 class 3B exceeds 8000 V
CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Specified from -40 °C to +85 °C and -40 °C to +125 °C
參數(shù)類型
| 型號(hào) | VCC(A) (V) | VCC(B) (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | Nr of bits | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Package name | Category |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74AVCH20T245DGG | 0.8?-?3.6 | 0.8?-?3.6 | CMOS/LVTTL | ± 12 | 2.1 | 20 | very low | -40~125 | 93 | 21 | TSSOP56 | Bi-directional | Direction controlled |
封裝
| 型號(hào) | 可訂購的器件編號(hào)，（訂購碼(12NC)） | 狀態(tài) | 標(biāo)示 | 封裝 | 外形圖 | 回流焊/波峰焊 | 包裝 |
|---|---|---|---|---|---|---|---|
| 74AVCH20T245DGG | 74AVCH20T245DGG,11 (935286236118) |
Active | AVCH20T245 |
TSSOP56 (SOT364-1) |
SOT364-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT364-1_118 |
環(huán)境信息
| 型號(hào) | 可訂購的器件編號(hào) | 化學(xué)成分 | RoHS | RHF指示符 |
|---|---|---|---|---|
| 74AVCH20T245DGG | 74AVCH20T245DGG,11 | 74AVCH20T245DGG |
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文檔 (7)
| 文件名稱 | 標(biāo)題 | 類型 | 日期 |
|---|---|---|---|
| 74AVCH20T245 | 20-bit dual supply translating transceiver with configurable voltage translation; 3-state | Data sheet | 2024-06-25 |
| AN90063 | Questions about package outline drawings | Application note | 2025-10-22 |
| Nexperia_document_guide_Logic_translators | Nexperia Logic Translators | Brochure | 2021-04-12 |
| SOT364-1 | 3D model for products with SOT364-1 package | Design support | 2020-01-22 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| SOT364-1 | plastic, thin shrink small outline package; 56 leads; 0.5 mm pitch; 14 mm x 6.1 mm x 1.2 mm body | Package information | 2022-06-23 |
| SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
支持
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模型
| 文件名稱 | 標(biāo)題 | 類型 | 日期 |
|---|---|---|---|
| SOT364-1 | 3D model for products with SOT364-1 package | Design support | 2020-01-22 |
Ordering, pricing & availability
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