力芯微全集成电平转换解决方案

2025-10-17 11:23:06

方案海报

在移动智能设备追求极致性能与轻薄设计的今天,高速存储接口的稳定性和集成度至关重要。力芯微推出的ET4857,是一款完全符合SD 3.0标准的高集成度、双向自动方向控制电平转换器。它不仅是连接主机处理器与存储卡的桥梁,更是一站式的信号完整性、电源管理和系统保护专家,助力您的产品在竞争中脱颖而出。

其核心价值在于解决现代移动设备中低电压主机(1.2V-1.8V)与标准电压存储卡(1.8V/3.0V)之间的通信障碍。且集成了电平转换器、LDO、EMI滤波器和高强度ESD保护于一体,是嵌入式存储接口的“全能卫士”。与NVT4857完全兼容。

产品特性

  • 支持高达 208MHz 的时钟频率

  • 符合 SD3.0 规范的电压转换,以支持 SDR104、SDR50、DDR50、SDR25、SDR12、高速模式和默认速度模式

  • 支持 1.2V 至 1.8V 的主机侧接口电压

  • 用于时钟同步的反馈通道

  • 支持100mA 负载的LDO为卡侧的 I/O 提供电源

  • 采用“先断后接”架构的推挽式输出级实现了低功耗

  • 通过 VSD 实现自动启用和禁用

  • 内部集成上拉和下拉电阻:无需外部电阻

  • 集成式电磁干扰滤波器可抑制数字输入/输出的高次谐波。

  • 在卡侧集成 8kV 的 ESD 保护,符合 IEC 61000-4-2 标准

  • 电平转换缓冲器能够将静电放电应力隔离在主机之外(采用零钳位原理)

管脚定义

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典型应用

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新品预发布

为了满足更小封装,更低工作电压范围和SD卡超频应用,力芯微即将推出300MHZ时钟频率的SD3.0电平转换ET4860,性能领先友商产品NXS0506/NVT4858,敬请期待。

管脚定义

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电平转换-产品选型

STATUS

P/N

Description

VCC(V)

P/N

PACKAGE

MP

ET5014

4-bit bidirectional level translator

VCCA:1.2~5.0
VCCB:1.2~5.0

NXB0104
NLSX5014
TXB0304

QFN12(1.7X2)
QFN14(3.5X3.5)

MP

ET5014L

4-bit bidirectional level translator

VCCA:1.08~5.0
VCCB:1.08~5.0

NXB0104
NLSX5014
TXB0304

QFN12(1.7X2)

MP

ET2102

2-bit level translator for IIC

VCCA:1.65~5.0
VCCB:1.65~5.0

FXMAR2102

QFN8(1.2X1.4)
SOT23-8
DFN8(1.4X1)
DFN8(1.35*1.7)
MSOP8

MP

ET2104

4-bit level translator for IIC

VCCA:1.65~5.0
VCCB:1.65~5.0

FXMAR2104

CSP12
TSSOP14
QFN12(1.8X1.8)
QFN12(2X2)
QFN14(3.5X3.5)

MP

ET4557

SIM card interface level translator

SIM:1.62~3.6
HOST:1.08~1.98

NXT4557

QFN10(1.4X1.8-0.55)

MP

ET4559

SIM card interface level translator

SIM:1.62~3.6
HOST:1.08~1.98

NXT4559

FOWLP9

MP

ET4857

SD 3.0-compliantdual voltage level translator

VSD:2.9~3.6
 VCCA:1.1~2.0

NVT4857

CSP20

Developing

ET4860

SD 3.0-compliantdual voltage level translator

VCCB:1.7~3.6
 VCCA:1.1~2.0

NXS0506
NVT4858

CSP16

MP

ET74AVCH8T245

8-bit dual supply translating transceiver with configurable voltage translation

VCCA:0.8~3.6
VCCB:0.8~3.6

74AVCH8T245

QFN24

MP

ET74LVCH8T245

8-bit dual supply translating transceiver with configurable voltage translation

VCCA:1.65~5.5
VCCB:1.65~5.5

74LVCH8T245

SSOP24
TSSOP24
QFN24

MP

ET74AVCH4T245

4-bit dual supply translating transceiver with configurable voltage translation

VCCA:0.8~3.6
VCCB:0.8~3.6

74AVCH4T245

SOP16
TSSOP16
QFN16L(2.6X1.8)

MP

ET74LVCH4T245

4-bit dual supply translating transceiver with configurable voltage translation

VCCA:1.2~5.5
VCCB:1.2~5.5

74LVCH4T245

SOP16
TSSOP16
QFN16L(2.6X1.8)

MP

ET74AVCH2T45

2-bit dual supply translating transceiver with configurable voltage translation

VCCA:0.8~3.6
VCCB:0.8~3.6

74AVCH2T245

TSSOP8
QFN8
MSOP8

MP

ET74LVCH2T45

2-bit dual supply translating transceiver with configurable voltage translation

VCCA:1.2~5.5
VCCB:1.2~5.5

74LVCH2T245

TSSOP8
QFN8
MSOP8

MP

ET74AVCH1T45

Single-bit dual supply translating transceiver with configurable voltage translation

VCCA:0.8~3.6
VCCB:0.8~3.6

74AVCH1T45

DFN6(1.45X1)
SC70-6
SOT23-6

MP

ET74LVCH1T45

Single-bit dual supply translating transceiver with configurable voltage translation

VCCA:1.2~5.5
VCCB:1.2~5.5

74LVCH1T45

DFN6(1.45X1)
SC70-6
SOT23-6

ES

ET74AVCH4T774

4-bit supply translating transceiver with configurable voltage translation

VCCA:0.8~3.6
VCCB:0.8~3.6

74AVCH4T774

TSSOP16

MP

ETF0102

Automotive 2-Bit Bi-directional, Level-Shifting, Voltage Translator for Open-Drain and Push-Pull Applications

VrefA:0.95~3.3
VrefB:1.8~5

LSF0102

DFN8(1.4X1)
SOP8
TSSOP8

ES

ETF0104

Automotive 4-Bit Bi-directional, Level-Shifting, Voltage Translator for Open-Drain and Push-Pull Applications

VrefA:0.95~3.3
VrefB:1.8~5

LSF0104

TSSOP14

ES

ETF0108

Automotive 8-Bit Bi-directional, Level-Shifting, Voltage Translator for Open-Drain and Push-Pull Applications

VrefA:0.95~3.3
VrefB:1.8~5

LSF0108

TSSOP20

ES

ETB0102

2-bit bidirectional voltage level converter with automatic direction detection

VCCA:1.2~3.6
VCCB:1.65~5.5

TXB0102
NXB0102

VSSOP8

ES

ETS0102

Automotive 2-Bit Bi-directional, Level-Shifting, Voltage Translator for Open-Drain and Push-Pull Applications

VCCA:1.65~3.6
VCCB:2.3~5.5

TXS0102
NXS0102

VSSOP8

ES

ETB0104

4-bit bidirectional voltage level converter with automatic direction detection

VCCA:1.2~3.6
VCCB:1.65~5.5

TXB0104
NXB0104

TSSOP14
QFN14

ES

ETS0104

Automotive 4-Bit Bi-directional, Level-Shifting, Voltage Translator for Open-Drain and Push-Pull Applications

VCCA:1.65~3.6
VCCB:2.3~5.5

TXS0104
NXS0104

TSSOP14

ES

ETB0108

8-bit bidirectional voltage level converter with automatic direction detection

VCCA:1.2~3.6
VCCB:1.65~5.5

TXB0108
NXB0108

QFN20

MP

ETS0108

Automotive 8-Bit Bi-directional, Level-Shifting, Voltage Translator for Open-Drain and Push-Pull Applications

VCCA:1.65~3.6
VCCB:2.3~5.5

TXS0108
NXS0108

TSSOP20


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力芯微电子

力芯微是一家专注于电源管理、信号链、驱动及分立器件等产品的研发和销售的芯片设计企业。其产品广泛应用于消费电子、汽车、通信和工业等多个领域,并具有较强的市场竞争力。公司总部位于国家重要的集成电路产业化基地——江苏无锡,并在韩国、上海、深圳等地设有研发中心及市场销售分公司。

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