可訂購部件
| 型號 | 可訂購的器件編號 | 訂購代碼(12NC) | 封裝 | 從經銷商處購買 |
|---|---|---|---|---|
| NCA9701AGX | NCA9701AGXX | 935691503115 | SOT1233-2 | 訂單產品 |
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Click here for more informationNCA9701AGX
Level translating Fm+ I2C bus repeater/accelerator
The NCA9701A is a dual-channel bidirectional repeater for I2C and SMBus/PMBus applications. It targets the Fast-mode Plus (Fm+) of the I2C protocol, making the true 1 MHz operation possible without violating I2C timing specifications. This is achieved by using edge accelerators added at all NCA9701A ports that speed up the LOW-to-HIGH transitions of I2C input and output signals.
The NCA9701A provides the buffering for both clock (SCL) and data (SDA) I2C signals with the voltage level translation possibility (up and down) at the same time. The unique feature of the IC is the same operating voltage range of 1.08 V to 3.6 V that can be applied at both port A and port B of the device. This offers more flexibility in how the device can be used in the target application. Multiple NCA9701As can be connected in series or in star, and their ports A and B can be exchanged. Only when the I2C clock stretching needs to be supported, the NCA9701A port A must be connected to the I2C Master side and the NCA9701A port B to the I2C Slave side.
The NCA9701A features integrated pull-up resistors of 4.3 k? at each I/O pin. This simplifies the system implementation and reduces BOM count. Though external pull-up resistors are not required, they might be added to shorten the rise times of I2C signals even further.
The NCA9701A provides true signal buffering as the device implementation does not use the pass?-?FET topology. No static or incremental offsets are needed either, and the lock-free operation is guaranteed by an innovative implementation of the buffers. The very low VOL levels on port A and B improve the noise margin in the application and the potential noise components of input signals are filtered out by Schmitt trigger inputs. To reduce EMI, the negative edges of output signals are slew-controlled.
The NCA9701A is well suited for high-performance low-power applications which use the I2C communication protocol.
Features and benefits
Two-channel bidirectional I2C buffer
Voltage level translation from 1.08 V to 3.6 V at both port A and port B with unconstrained combination of the supply voltage levels
Guaranteed 1 MHz operation (true I2C Fast-mode Plus, Fm+)
Support for the I2C Standard-mode (Sm) and Fast-mode (Fm) operation
No static voltage offset
Very low VOL on I/O pins of the port A; VOL regulated to 0.1VCCB on I/O pins of the port B
Input and output rising-edge signal accelerators at all I/Os
Active-HIGH enable input referenced to VCCA supply
Lock-free operation
Glitch-free and sequence-independent IC power-up
Open-drain input/outputs
Series connection and star connection of NCA9701A devices possible
I2C clock stretching support
Compatibility with I2C bus and SMBus protocols
Latch-up performance exceeds 100 mA per JESD 78B Class II
?
ESD protection:
HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2 kV
CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1 kV
Very small footprint
Applications
Smart phones and tablets
Portable medical devices
Portable instrumentation and test equipment
Devices for IoT applications
Power-sensitive applications
參數類型
| 型號 | VCC(B) (V) | VCC(A) (V) | Logic switching levels | Power dissipation considerations | Tamb (°C) | Package name |
|---|---|---|---|---|---|---|
| NCA9701AGX | 1.08?-?3.6 | 1.08?-?3.6 | CMOS | very low | -40~85 | X2SON8 |
封裝
| 型號 | 可訂購的器件編號，（訂購碼(12NC)） | 狀態 | 標示 | 封裝 | 外形圖 | 回流焊/波峰焊 | 包裝 |
|---|---|---|---|---|---|---|---|
| NCA9701AGX | NCA9701AGXX (935691503115) |
Active | z3 |
X2SON8 (SOT1233-2) |
SOT1233-2 | SOT1233-2_115 |
文檔 (5)
| 文件名稱 | 標題 | 類型 | 日期 |
|---|---|---|---|
| NCA9701A | Level translating Fm+ I2C bus repeater/accelerator | Data sheet | 2024-09-11 |
| AN90063 | Questions about package outline drawings | Application note | 2025-06-13 |
| SOT1233-2 | 3D model for products with SOT1233-2 package | Design support | 2021-01-28 |
| SOT1233-2 | plastic thermal enhanced extremely thin small outline package; no leads;8 terminals; body 1.35 x 0.8 x 0.32 mm | Package information | 2022-04-21 |
| SOT1233-2_115 | X2SON8; Reel pack for SMD, 7''; Q1/T1 product orientation | Packing information | 2020-05-12 |
Longevity
The Nexperia Longevity Program is aimed to provide our customers information from time to time about the expected time that our products can be ordered. The NLP is reviewed and updated regularly by our Executive Management Team. View our longevity program here.
模型
| 文件名稱 | 標題 | 類型 | 日期 |
|---|---|---|---|
| SOT1233-2 | 3D model for products with SOT1233-2 package | Design support | 2021-01-28 |
訂購、定價與供貨
| 型號 | Orderable part number | Ordering code (12NC) | 狀態 | 包裝 | Packing Quantity | 在線購買 |
|---|---|---|---|---|---|---|
| NCA9701AGX | NCA9701AGXX | 935691503115 | Active | SOT1233-2_115 | 10,000 |
|
樣品
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