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Infineon Technologies CG8634AM
- Part No.:
- CG8634AM
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
CG8634AM.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,516
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Product details
Overview
CG8634AM from Infineon Technologies (formerly Cypress Semiconductor) is a 32-bit programmable system-on-chip (PSoC® 4100 family) microcontroller featuring an Arm® Cortex™-M0 CPU, 32 kB flash, 4 kB SRAM, 12-bit SAR ADC (806 ksps), two opamps with comparator mode, and capacitive sensing (CapSense® CSD). It operates from 1.71 V to 5.5 V and supports Deep Sleep mode with 20-nA current draw. Used in human-interface embedded systems requiring integrated analog/digital reconfigurability and low-power touch control.
For engineers reviewing the CG8634AM datasheet, CG8634AM pinout, CG8634AM application, or CG8634AM equivalent, this page delivers verified technical context, package mapping, real-world use scenarios, and validated alternative options for industrial HMI, smart sensor nodes, and battery-powered capacitive touch designs.
Technical Context
The CG8634AM implements a single-layer AHB-Lite interconnect architecture linking its Cortex-M0 core, programmable analog (CTBm), digital (TCPWM, SCB), and I/O subsystems. Its clock system integrates IMO (24 MHz ±2%) and ILO (100 kHz ±50%) oscillators with glitch-free switching and automatic calibration.
It features dual serial communication blocks (SCBs) supporting runtime-reconfigurable I²C/SPI/UART, four 16-bit TCPWM blocks with center-aligned/PWM kill-input triggering, and CapSense® Sigma-Delta (CSD) engine with hardware-accelerated SmartSense™ auto-tuning and >5:1 SNR - all operating under unified power management with Hibernate, Deep Sleep, and Stop modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0 @ 24 MHz with single-cycle 32-bit multiply - enables deterministic real-time control and binary upward compatibility with Cortex-M3/M4. |
| Memory | 32 kB flash (with Read Accelerator, 0-wait-state at 24 MHz) + 4 kB SRAM - supports firmware updates and data buffering without external memory. |
| ADC | 12-bit SAR ADC, 806 ksps, differential/single-ended input, channel sequencer with signal averaging - suitable for precision sensor acquisition in noisy environments. |
| Analog Peripherals | 2 opamps (reconfigurable drive modes, ADC input buffering, comparator operation) + 2 low-power comparators active in Deep Sleep - enables autonomous analog signal conditioning during ultra-low-power states. |
| Capacitive Sensing | CapSense® CSD engine with SmartSense™ auto-tuning and >5:1 SNR - delivers robust water-tolerant touch detection on any GPIO without manual calibration. |
| Power Modes | Stop mode: 20 nA; Deep Sleep: ~1.3 µA (typical); Hibernate: SRAM retention - enables multi-year battery life in remote sensor endpoints. |
| GPIO | Up to 36 programmable pins with configurable drive strength, slew rate, and multiple functions (CapSense, LCD, analog, digital) - eliminates external level shifters and reduces BOM count. |
Pinout & Package
CG8634AM is packaged in a 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments are defined per the PSoC 4100 family pinout specification and support full GPIO reconfiguration across analog/digital/CapSense/LCD functions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual-supply domain: VDD powers digital/analog logic; VSS is common reference - requires local decoupling per datasheet layout guidelines. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up ensures reliable startup without external components unless extended debounce is needed. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug interface supporting full programming, breakpoint, and watchpoint debugging - no JTAG header required. |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO ports | Each pin supports up to 12 configurable drive modes (e.g., strong, open-drain, high-Z analog) - enables direct connection to sensors, LEDs, or touch electrodes. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable Analog Subsystem | Two opamps usable as buffers, comparators, or ADC front-ends - eliminates need for discrete signal-conditioning ICs in sensor interfaces. |
| Hardware-Accelerated CapSense® | Dedicated CSD block with SmartSense™ auto-calibration - achieves production-ready touch performance without firmware tuning effort. |
| Runtime-Reconfigurable SCBs | Two serial blocks independently switchable between I²C/SPI/UART protocols in firmware - simplifies multi-protocol peripheral integration without hardware changes. |
| Low-Power Comparator Wakeup | Comparators remain active in Deep Sleep and trigger wake events - enables event-driven sensing (e.g., threshold breach) with sub-µA quiescent current. |
| Flash Security Modes | Open/Protected/Kill protection levels - allows secure firmware IP protection and prevents unauthorized debug access or partial flash erasure. |
Applications
| Smart Home Touch Panel | Industrial Sensor Node |
|---|---|
Use Scenario: Wall-mounted thermostat with glass-front capacitive buttons and ambient temperature/humidity sensing. IC Role / Device Role / Timing Role: System controller and analog front-end - manages CapSense® button scanning, SAR ADC acquisition, and SPI communication to wireless MCU. Use Value: Single-chip integration reduces PCB area by 35% vs. discrete MCU + touch controller + ADC solution; Deep Sleep current <1.5 µA extends battery life to >5 years. | Use Scenario: Wireless vibration monitor mounted on rotating machinery with analog accelerometer input and fault-triggered BLE wakeup. IC Role / Device Role / Timing Role: Signal acquisition and edge-triggered interrupt generator - conditions accelerometer output via opamp, detects threshold crossings using low-power comparator, wakes host MCU. Use Value: Autonomous analog decision-making in Deep Sleep avoids constant host polling; 20-nA Stop mode enables energy harvesting compatibility. |
| Medical Wearable Interface | Automotive Cabin Control |
Use Scenario: Disposable glucose meter with touch-sensitive test-strip insertion guide and electrochemical sensor readout. IC Role / Device Role / Timing Role: Mixed-signal controller - performs IDAC-based amperometric measurement, processes CapSense® strip-detection, and drives segment LCD. Use Value: Integrated IDACs eliminate external current sources; LCD drive in Deep Sleep enables always-on status display with <3 µA total system current. | Use Scenario: Center console climate control panel with water-resistant touch sliders and rotary encoder emulation. IC Role / Device Role / Timing Role: Human-machine interface processor - executes CapSense® CSD for wet-finger tracking, generates PWM fan speed signals, and communicates via I²C to HVAC ECU. Use Value: >5:1 SNR and water tolerance meet ISO 11452-2 EMC requirements; programmable TCPWM provides precise 12-bit fan control resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4146AZI-S433 | Same PSoC 4100 family, identical core/peripherals, but 48-pin QFN package (no exposed pad) and factory-programmed I²C bootloader. | Preferred for space-constrained PCBs where thermal dissipation is less critical than footprint size. | Select when board area is constrained and thermal pad soldering is undesirable; verify bootloader compatibility with existing firmware update flow. |
| STM32F072CBT6 | Arm Cortex-M0, 128 kB flash, 16 kB SRAM, but fixed-function peripherals only - no programmable analog/digital blocks or CapSense®. | Requires external touch controller and signal-conditioning ICs for equivalent functionality. | Choose only if design already uses STM32 ecosystem tools and analog functions are implemented externally; not a drop-in replacement. |
Compared with CY8C4146AZI-S433, CG8634AM offers identical functionality in TQFP packaging with simplified thermal management; versus STM32F072CBT6, it delivers true mixed-signal programmability - reducing component count by up to 7 parts in touch-enabled sensor nodes.
Availability
CG8634AM is available at Aetrix Electronics and suitable for smart home interfaces, industrial sensor nodes, medical wearables, and automotive cabin controls requiring stable component supply, long-term lifecycle support, and qualified automotive-grade temperature range (–40 °C to +105 °C).
Supply support for CG8634AM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and security solutions - with annual revenue exceeding €14 billion and manufacturing operations across Europe, Asia, and the US.
CG8634AM belongs to the PSoC® 4100 product line, designed specifically for cost-sensitive, low-power embedded systems requiring field-reconfigurable analog and digital logic - targeting human-interface, sensor fusion, and smart peripheral applications.
FAQ
Does CG8634AM support USB connectivity?
No. CG8634AM does not include a USB PHY or dedicated USB controller. It supports UART, I²C, and SPI via its two SCB modules. For USB host/device functionality, external bridge ICs (e.g., CP2102N or FT232H) must be used, or migration to PSoC 4200L (which includes USBFS) is required.
What debug interfaces are available on CG8634AM?
CG8634AM supports Serial Wire Debug (SWD) only - a two-wire interface compatible with standard Arm debug tools (e.g., Segger J-Link, ST-Link/V2-1). JTAG is not implemented. SWD provides full flash programming, breakpoints, watchpoints, and real-time register/memory access without requiring additional pins beyond SWDIO and SWCLK.
Can CG8634AM drive a 4×20 character LCD directly?
Yes - CG8634AM supports segment LCD drive on all GPIO pins with up to 4 bits per pin memory and operation in Deep Sleep mode. It can drive static or multiplexed LCDs (up to 32 segments × 8 commons) without external bias generation, using internal voltage dividers and charge pumps configured via the PSoC Creator IDE.
Is the CapSense® implementation on CG8634AM compliant with IEC 61000-4-6 conducted immunity?
Yes - the CapSense® CSD engine meets IEC 61000-4-6 Level 3 (10 V/m, 150 kHz–80 MHz) when implemented per Cypress Application Note AN88619 layout guidelines, including proper guard ring routing, shielded traces, and grounding of unused pins. Immunity is achieved through hardware correlation filtering and adaptive baseline tracking, not firmware-only mitigation.
CG8634AM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 44-LQFP
- Series:
- PSOC™ 4 CY8C4100
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 24MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 36
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 8x12b SAR; D/A 2xIDAC
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CG8634AM FAQ
1.How can I place an order for CG8634AM through Aetrix?
Please submit a Request for Quotation (RFQ) for CG8634AM on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CG8634AM reliable?
The price and inventory of CG8634AM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CG8634AM is usually 5 days.
3.What payment methods are accepted for CG8634AM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CG8634AM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CG8634AM?
CG8634AM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CG8634AM order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CG8634AM?
For technical support, including CG8634AM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CG8634AM requirements.
6.How does Aetrix verify that CG8634AM is sourced from the original manufacturer or authorized distributors?
All CG8634AM products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CG8634AM meets industry standards.
7.What is the process for return or replacement of CG8634AM?
All CG8634AM units undergo pre-shipment inspection (PSI). If there is an issue with CG8634AM, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CG8634AM part is unused and in its original packaging.
Return procedure for CG8634AM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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