主頁 接口 I2C、I3C 和 SPI IC I2C 和 SPI 通用 I/O (GPIO)

LM8330

正在供貨

具有 GPIO、PWM 和 IEC61000 ESD 保護的 I2C 兼容鍵盤控制器

產品詳情

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.
下載 觀看帶字幕的視頻 視頻

技術文檔

star =有關此產品的 TI 精選熱門文檔
未找到結果。請清除搜索并重試。
查看全部 8
類型 標題 下載最新的英語版本 日期
* 數據表 LM8330 I2C-Compatible Keypad Controller 數據表 (Rev. A) 2013年 3月 26日
應用手冊 Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 2024年 7月 3日
應用手冊 了解 CMOS 輸出緩沖器中的瞬態驅動強度與直流驅動強度 PDF | HTML 最新英語版本 (Rev.A) PDF | HTML 2024年 5月 15日
應用手冊 Choosing the Correct I2C Device for New Designs PDF | HTML 2016年 9月 7日
應用手冊 Understanding the I2C Bus PDF | HTML 2015年 6月 30日
應用手冊 Maximum Clock Frequency of I2C Bus Using Repeaters 2015年 5月 15日
應用手冊 I2C Bus Pull-Up Resistor Calculation PDF | HTML 2015年 2月 13日
EVM 用戶指南 LM8330EVM User's Guide 2013年 2月 18日

設計和開發

如需其他信息或資源，請點擊以下任一標題進入詳情頁面查看（如有）。

評估模塊 (EVM) 用 GUI

SNVC067 — LM8330 EVM GUI Software

支持的產品和硬件

支持的產品和硬件

產品
I2C 和 SPI 通用 I/O (GPIO)
LM8330 — 具有 GPIO、PWM 和 IEC61000 ESD 保護的 I2C 兼容鍵盤控制器
模擬工具

PSPICE-FOR-TI — PSpice? for TI 設計和仿真工具

PSpice? for TI 可提供幫助評估模擬電路功能的設計和仿真環境。此功能齊全的設計和仿真套件使用 Cadence? 的模擬分析引擎。PSpice for TI 可免費使用，包括業內超大的模型庫之一，涵蓋我們的模擬和電源產品系列以及精選的模擬行為模型。

借助?PSpice for TI 的設計和仿真環境及其內置的模型庫，您可對復雜的混合信號設計進行仿真。創建完整的終端設備設計和原型解決方案，然后再進行布局和制造，可縮短產品上市時間并降低開發成本。?

在?PSpice for TI 設計和仿真工具中，您可以搜索 TI (...)
發送申請
模擬工具

TINA-TI — 基于 SPICE 的模擬仿真程序

TINA-TI 提供了 SPICE 所有的傳統直流、瞬態和頻域分析以及更多。TINA 具有廣泛的后處理功能，允許您按照希望的方式設置結果的格式。虛擬儀器允許您選擇輸入波形、探針電路節點電壓和波形。TINA 的原理圖捕獲非常直觀 - 真正的“快速入門”。

TINA-TI 安裝需要大約 500MB。直接安裝，如果想卸載也很容易。我們相信您肯定會愛不釋手。

TINA 是德州儀器 (TI) 專有的 DesignSoft 產品。該免費版本具有完整的功能，但不支持完整版 TINA 所提供的某些其他功能。

如需獲取可用 TINA-TI 模型的完整列表，請參閱：SpiceRack - 完整列表 

需要 HSpice (...)

用戶指南: PDF
英語版 (Rev.A): PDF
View Options
封裝 引腳 CAD 符號、封裝和 3D 模型
DSBGA (YFQ) 25 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

推薦產品可能包含與 TI 此產品相關的參數、評估模塊或參考設計。

支持和培訓

視頻