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LM8330

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具有 GPIO、PWM 和 IEC61000 ESD 保护的 I2C 兼容键盘控制器

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数据表

LM8330

正在供货
数据表 立即订购

产品详情

Number of I/Os 20 Features (x3) PWM, 104-input keypad scan, Reset pin Supply voltage (min) (V) 1.62 Supply voltage (max) (V) 1.98 Addresses 128 Rating Catalog Frequency (max) (MHz) 0.4 Operating temperature range (°C) -30 to 85
Number of I/Os 20 Features (x3) PWM, 104-input keypad scan, Reset pin Supply voltage (min) (V) 1.62 Supply voltage (max) (V) 1.98 Addresses 128 Rating Catalog Frequency (max) (MHz) 0.4 Operating temperature range (°C) -30 to 85
DSBGA (YFQ) 25 4.84 mm² 2.2 x 2.2
  • KEY FEATURES
    • Keypad Matrices of up to of 8 x 12 Keys, Plus 8 Special Function (SF) Keys, for a Full 104 Key Support.
    • Supports General-purpose I/O Expansion on Pins Not Otherwise Used for Keypad or PWM Output.
    • Keypad Matrix and Dedicated Key Support:16-Event Keycode Buffer4-Event Multiple Key Storage Registers
    • Internal Oscillator, No External Clock Required.
    • I2C-compatible ACCESS.bus Slave Interface Standard (100 kHz) and Fast (400 kHz) Modes:7-bit and 10-bit AddressingProgrammable Slave Address(Default 7-bit 0x88, 10-bit 0x088)
    • Three Host-programmable PWM OutputsSmooth LED Brightness ModulationDedicated 31-command Script BuggerRegister-based Command Interpreter with Auto-increment Addressing
    • Key Events, Errors, and Dedicated Hardware Interrupts, Request Host Service by Asserting an IRQ Output
    • Ultra-Low-Power OperationAutomatic HALT Mode: 1.5 µA (typ.)Active Supply Current: 23 µA (typ.)Configurable Wake-Up from HALT Operation
    • IEC61000-4-2 ESD Protection on KPX[7:0] and KPY[10:0] pins
    • ESD Glitch Filter on RESETN Input
    • External Reset for System Control
  • HOST-CONTROLLED FEATURES
    • Reset Input for System Control
    • PWM Scripting for Three PWM Outputs
    • Period of Inactivity That Triggers Entry into HALT Mode
    • Debounce Time for Reliable Key Event Polling
    • Configuration of General Purpose I/O Ports
    • Various Initialization Options (Keypad Size, etc.)
  • KEY DEVICE FEATURES
    • 1.8V ±10% Single-supply Operation
    • On-chip Power-on Reset (POR)
    • −30°C to +85°C Temperature Range
    • Robust IEC ESD Protection: ±8 kV Direct Contact on KPX[7:0] and KPY[10:0] Pins
    • 25-pin DSBGA Package Size: 2 mm x 2 mm x 0.6 mm (0.4 mm Pitch)

All trademarks are the property of their respective owners.

  • KEY FEATURES
    • Keypad Matrices of up to of 8 x 12 Keys, Plus 8 Special Function (SF) Keys, for a Full 104 Key Support.
    • Supports General-purpose I/O Expansion on Pins Not Otherwise Used for Keypad or PWM Output.
    • Keypad Matrix and Dedicated Key Support:16-Event Keycode Buffer4-Event Multiple Key Storage Registers
    • Internal Oscillator, No External Clock Required.
    • I2C-compatible ACCESS.bus Slave Interface Standard (100 kHz) and Fast (400 kHz) Modes:7-bit and 10-bit AddressingProgrammable Slave Address(Default 7-bit 0x88, 10-bit 0x088)
    • Three Host-programmable PWM OutputsSmooth LED Brightness ModulationDedicated 31-command Script BuggerRegister-based Command Interpreter with Auto-increment Addressing
    • Key Events, Errors, and Dedicated Hardware Interrupts, Request Host Service by Asserting an IRQ Output
    • Ultra-Low-Power OperationAutomatic HALT Mode: 1.5 µA (typ.)Active Supply Current: 23 µA (typ.)Configurable Wake-Up from HALT Operation
    • IEC61000-4-2 ESD Protection on KPX[7:0] and KPY[10:0] pins
    • ESD Glitch Filter on RESETN Input
    • External Reset for System Control
  • HOST-CONTROLLED FEATURES
    • Reset Input for System Control
    • PWM Scripting for Three PWM Outputs
    • Period of Inactivity That Triggers Entry into HALT Mode
    • Debounce Time for Reliable Key Event Polling
    • Configuration of General Purpose I/O Ports
    • Various Initialization Options (Keypad Size, etc.)
  • KEY DEVICE FEATURES
    • 1.8V ±10% Single-supply Operation
    • On-chip Power-on Reset (POR)
    • −30°C to +85°C Temperature Range
    • Robust IEC ESD Protection: ±8 kV Direct Contact on KPX[7:0] and KPY[10:0] Pins
    • 25-pin DSBGA Package Size: 2 mm x 2 mm x 0.6 mm (0.4 mm Pitch)

All trademarks are the property of their respective owners.

The LM8330 I/O - Expander and Keypad Controller is a dedicated device designed to unburden a host processor from scanning a matrix-addressed keypad and to provide flexible and general purpose, host programmable input/output functions. Three independent Pulse Width Modulation (PWM) timer outputs are provided for dynamic LED brightness modulation.

It communicates with a host processor through an I2C-compatible ACCESS.bus serial interface. It can communicate in Standard (100 kHz) and Fast-Mode (400 kHz) in slave Mode only.

All available input/output pins can alternately be used as an input or an output in a keypad matrix or as a host-programmable general-purpose input or output.

Any pin programmed as an input can also sense hardware interrupts. The interrupt polarity (“high-to-low” or “low-to-high” transition) is thereby programmable.

The LM8330 follows a predefined register-based set of commands. Upon startup (power-on) a configuration file must be sent from the host to set up the hardware of the device.

The LM8330 is available in a 25-bump lead-free DSBGA package size 2.0 mm x 2.0 mm x 0.6 mm (0.4 mm pitch).

The LM8330 has integrated ASIP (Application Specific Integrated Passives) on the KPX[7:0] and KPY[10:0] pins. These pins are designed to tolerate IEC61000-4-2 level 4 ESD: ±8 kV direct contact.

The LM8330 I/O - Expander and Keypad Controller is a dedicated device designed to unburden a host processor from scanning a matrix-addressed keypad and to provide flexible and general purpose, host programmable input/output functions. Three independent Pulse Width Modulation (PWM) timer outputs are provided for dynamic LED brightness modulation.

It communicates with a host processor through an I2C-compatible ACCESS.bus serial interface. It can communicate in Standard (100 kHz) and Fast-Mode (400 kHz) in slave Mode only.

All available input/output pins can alternately be used as an input or an output in a keypad matrix or as a host-programmable general-purpose input or output.

Any pin programmed as an input can also sense hardware interrupts. The interrupt polarity (“high-to-low” or “low-to-high” transition) is thereby programmable.

The LM8330 follows a predefined register-based set of commands. Upon startup (power-on) a configuration file must be sent from the host to set up the hardware of the device.

The LM8330 is available in a 25-bump lead-free DSBGA package size 2.0 mm x 2.0 mm x 0.6 mm (0.4 mm pitch).

The LM8330 has integrated ASIP (Application Specific Integrated Passives) on the KPX[7:0] and KPY[10:0] pins. These pins are designed to tolerate IEC61000-4-2 level 4 ESD: ±8 kV direct contact.
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类型 标题 下载最新的英语版本 日期
* 数据表 LM8330 I2C-Compatible Keypad Controller 数据表 (Rev. A) 2013年 3月 26日
应用手册 Choosing the Correct I2C Device for New Designs PDF | HTML 2016年 9月 7日
应用手册 Understanding the I2C Bus PDF | HTML 2015年 6月 30日
应用手册 Maximum Clock Frequency of I2C Bus Using Repeaters 2015年 5月 15日
应用手册 I2C Bus Pull-Up Resistor Calculation PDF | HTML 2015年 2月 13日
EVM 用户指南 LM8330EVM User's Guide 2013年 2月 18日

设计和开发

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评估模块 (EVM) 用 GUI

SNVC067 — LM8330 EVM GUI Software

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支持的产品和硬件

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I2C 通用 I/O (GPIO)
LM8330 — 具有 GPIO、PWM 和 IEC61000 ESD 保护的 I2C 兼容键盘控制器
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用户指南: PDF
英语版 (Rev.A): PDF
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包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
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  • 持续可靠性监测
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  • 封装厂地点

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