PCA9536
- Available in the Texas Instruments NanoFree™ Package
- Low standby current consumption of 1 µA Max
- I2C to parallel port expander
- Operating power-supply voltage range of 2.3 V to 5.5 V
- 5-V Tolerant I/O ports
- 400-kHz fast I2C bus
- Input and output configuration register
- Polarity inversion register
- Internal power-on reset
- No glitch on power up
- Power-up with all channels configured as inputs
- Noise filter on SCL/SDA inputs
- Latched outputs with high-current drive maximum capability for directly driving LEDs
- Latch-up performance exceeds 100 mA per JESD 78, class II
- ESD Protection exceeds JESD 22
- 2000-V Human-body model (A114-A)
- 200-V Machine model (A115-A)
- 1000-V Charged-device model (C101)
This 4-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.3-V to 5.5-V VCC operation. It provides general-purpose remote I/O expansion for most microcontroller families through the I2C interface [serial clock (SCL), serial data (SDA)].
The PCA9536 features 4-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active high or active low) registers. At power on, the I/Os are configured as inputs with a weak pullup to VCC. However, the system controller can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. If no signals are applied externally to the PCA9536, the voltage level is 1, or high, because of the internal pullup resistors. The data for each input or output is stored in the corresponding Input Port or Output Port register. The polarity of the Input Port register can be inverted with the Polarity Inversion register and the system controller reads all registers.
The system controller resets the PCA9536 in the event of a timeout or other improper operation by utilizing the power-on reset feature, which puts the registers in their default state and initializes the I2C/SMBus state machine.
The device outputs (latched) have high-current drive capability for directly driving LEDs, but has low current consumption.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | PCA9536 Remote 4-Bit I2C and SMBus I/O Expander with Configuration Registers datasheet (Rev. H) | PDF | HTML | 2022/03/28 |
| Application note | I2C Dynamic Addressing | 2019/04/25 | ||
| Selection guide | Logic Guide (Rev. AB) | 2017/06/12 | ||
| Application note | Choosing the Correct I2C Device for New Designs | PDF | HTML | 2016/09/07 | |
| Application note | Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) | 2015/12/02 | ||
| Application note | Understanding the I2C Bus | PDF | HTML | 2015/06/30 | |
| Application note | Maximum Clock Frequency of I2C Bus Using Repeaters | 2015/05/15 | ||
| Application note | I2C Bus Pull-Up Resistor Calculation | PDF | HTML | 2015/02/13 | |
| Application note | Programming Fun Lights With TI's TCA6507 | 2007/11/30 | ||
| Application note | Semiconductor Packing Material Electrostatic Discharge (ESD) Protection | 2004/07/08 |
설계 및 개발
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| 패키지 | 핀 | 다운로드 |
|---|---|---|
| SOIC (D) | 8 | 옵션 보기 |
| VSSOP (DGK) | 8 | 옵션 보기 |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
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