CY8C3646AXE-170 - 48MHz 8-Bit PSoC 3 MCU, 64KB Flash | Infineon
Teilenummer: CY8C3646AXE-170 ✓ AktivCY8C3646AXE-170 Übersicht
What is a PSoC 3? A programmable system-on-chip (PSoC) is an MCU family that integrates a CPU core, embedded flash and SRAM, and configurable analog and digital peripheral blocks onto a single die. The 8051 core inside the CY8C36xx family executes at up to 48 MHz, while on-chip programmable blocks let a design route analog sensors, comparators, timers, serial interfaces, and USB connectivity onto dedicated silicon instead of discrete components. In the system hierarchy, a PSoC 3 sits between a plain 8-bit microcontroller and an application-specific mixed-signal SoC: it is a microcontroller with configurable analog and digital peripherals rather than a fixed-function device.
Key features of the CY8C3646AXE-170 include 64 KB of flash for firmware and bootloader code, 8-bit CPU architecture with multi-cycle multiplier hardware for efficient 16-bit and 32-bit math, and a supply range from 0.5 V to 5.5 V that covers both 3.3 V and 5 V system rails. The -170 suffix designates the -40 C to +85 C industrial temperature grade, and the AXE package code designates the 100-pin TQFP industrial package.
Because the CY8C3646 family is part of the wider CY8C36xx platform, designers can reuse the same toolchain, PSoC Creator software, and peripheral configuration approach across multiple CY8C36xx devices while changing flash density and pin count to fit the end product. The wide range of on-chip peripherals reduces external component count and simplifies PCB layout in space-constrained designs.
Typical applications include human interface devices, capacitive touch keypads, battery-powered portable measurement equipment, industrial control panels, sensor conditioning and data logging modules, and USB-connected debug or programming accessories. Because the device carries 100 leads, it exposes a large number of general purpose I/O and dedicated peripheral pins for mixed analog and digital signal chains.
One design consideration worth noting: the 100-lead TQFP body is 14 x 14 mm, which is larger than the 48-pin or 32-pin alternatives in the family. Plan the footprint and pin escaping early in the layout stage if the enclosure is tight, and confirm that the 0.5 mm lead pitch suits the assembly process.
This page consolidates parametric detail, drop-in alternatives in the same 100-TQFP footprint, a package-confirmed comparison table, and practical design notes so that engineers can qualify the CY8C3646AXE-170 quickly before committing to a PCB spin.
Drop-in-Alternativen für CY8C3646AXE-170 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
CY8C3647AXE-170
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
CY8C3667AXE-170
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
CY8C3645AXE-170
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
CY8C3644AXE-170
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
CY8C3643AXE-170
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
CY8C3646AXE-170 Grenzwerte & elektrische Eigenschaften
| Manufacturer | Infineon Technologies (formerly Cypress Semiconductor) |
| Product Family | PSoC 3, CY8C36xx |
| CPU Core | 8051-compatible, 8-bit |
| Maximum CPU Frequency | 48 MHz |
| Flash Memory | 64 KB (64K x 8) |
| Supply Voltage Range | 0.5 V to 5.5 V |
| Gehäuse | 100-TQFP (14 x 14 mm) |
| Lead Pitch | 0.5 mm |
| Temperature Grade | Industrial (-40 C to +85 C) |
| Montageart | Surface Mount |
| Programmable Peripheral Architecture | Configurable analog and digital blocks (PSoC 3) |
| Product Type | 8-bit Microcontroller IC |
| RoHS-Status | Compliant (RoHS-compliant part listed) |
| Betriebstemperaturbereich | -40 C to +85 C |
| Development Toolchain | PSoC Creator, PSoC Programmer |
| Lebenszyklusstatus | Active |
CY8C3646AXE-170 100-tqfp (14 x 14 mm) Pinbelegungsleitfaden
Pinbelegung für CY8C3646AXE-170 (100-tqfp (14 x 14 mm)-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für CY8C3646AXE-170.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
CY8C3646AXE-170 ist geeignet für 6 Anwendungs: Industrial Control Panel with Capacitive Touch Keys, Battery-Powered Portable Sensor Node, USB Connected Programmer and Debug Probe, Data Logger with Multi-Channel Analog Acquisition, Automotive Interior Lighting and Accessory Controller, Home Automation Gateway and Relay Controller.
Industrial Control Panel with Capacitive Touch Keys
The CY8C3646AXE-170 suits an HMI panel that mixes capacitive touch sensing with discrete button inputs and indicator control. At 48 MHz the 8-bit core has ample headroom for debounce, filtering, and UI state, while the 100-lead TQFP exposes enough GPIO and dedicated peripheral pins to drive LEDs, buzzers, and row/column key scanning without a companion I/O expander. The PSoC 3 programmable blocks can host the touch sensing front end and comparators on-die, which reduces external analog parts. The 0.5 V to 5.5 V supply range lets the panel run directly from a 3.3 V or 5 V rail.
Empfohlen
Battery-Powered Portable Sensor Node
For a compact, battery-operated sensor node, the CY8C3646AXE-170 offers a 48 MHz core with 64 KB of flash for firmware, data buffering, and OTA bootloader code. The wide 0.5 V to 5.5 V operating range allows operation from a single cell regulator output or a 3 V coin cell without a separate level shifter, and the deep low-power modes of the PSoC 3 platform help extend runtime between service intervals. On-chip configurable analog blocks can condition the sensor signal and drive a baseline-compensated comparator, trimming board area.
Empfohlen
USB Connected Programmer and Debug Probe
The CY8C3646AXE-170 is a natural fit for a USB-connected programming and debug accessory built around the PSoC 3 platform, since the family's USB device block and SWD interface support both host-side control and target flashing. The 64 KB of flash is ample for a bootloader plus test firmware, and the 100-lead TQFP keeps the SWD header, USB transceiver interface, and status indicators on one device. Running at 48 MHz the device drives a USB peripheral bus and handles enumeration quickly while leaving CPU headroom for protocol translation.
Empfohlen
Data Logger with Multi-Channel Analog Acquisition
In a multi-channel data logger, the CY8C3646AXE-170 provides 48 MHz of 8-bit processing for sampling, filtering, and timestamp buffering, with 64 KB of flash storing configuration parameters and log headers. The PSoC 3 analog blocks can be configured as successive-approximation ADCs, delta-sigma ADCs, or comparators, so slow thermocouple channels and fast sensor channels can share one device. The 100-lead TQFP provides ample routing resources for balanced analog inputs alongside digital channels.
Empfohlen
Automotive Interior Lighting and Accessory Controller
The CY8C3646AXE-170 works well in interior accessory controllers where ambient lighting, door locks, and small motors are sequenced and monitored. The 48 MHz core handles PWM generation for dimming channels and debounced switch inputs concurrently, while the 100-lead TQFP gives enough pins for multiple MOSFET gate drives and diagnostic feedback lines. The 0.5 V to 5.5 V range supports both 5 V and 3.3 V vehicle body subsystems. For safety-critical or under-hood functions, specify an AEC-Q100-qualified ordering variant instead of this industrial grade.
Empfohlen
Home Automation Gateway and Relay Controller
A smart-home gateway front end built on the CY8C3646AXE-170 can host the PSoC 3 on-chip USB and serial blocks alongside application firmware in 64 KB of flash, handling commissioning, device pairing, and event routing. The 100-lead package supports many simultaneous peripheral instances, letting one MCU drive relay outputs, sense wall switches, and run an indicator bus without daisy-chained expanders. The 0.5 V to 5.5 V supply range simplifies powering from either 5 V or 3.3 V rails found in mixed-generation gateways.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für CY8C3646AXE-170 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | CY8C3647AXE-170 | CY8C3667AXE-170 | CY8C3645AXE-170 | CY8C3644AXE-170 |
|---|---|---|---|---|---|
| Package | 100-TQFP (14 x 14 mm) | 100-TQFP (14 x 14 mm) - same | 100-TQFP (14 x 14 mm) - same | 100-TQFP (14 x 14 mm) - same | 100-TQFP (14 x 14 mm) - same |
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Product Family | PSoC 3 (CY8C36xx) | PSoC 3 (CY8C36xx) | PSoC 3 (CY8C36xx) | PSoC 3 (CY8C36xx) | PSoC 3 (CY8C36xx) |
| CPU Core | 8051, 8-bit | 8051, 8-bit | 8051, 8-bit | 8051, 8-bit | 8051, 8-bit |
| Maximum Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash Memory | 64 KB | 128 KB (+100%) | 256 KB (+300%) | 48 KB (-25%) | 32 KB (-50%) |
| Supply Voltage Range | 0.5 V to 5.5 V | 0.5 V to 5.5 V | 0.5 V to 5.5 V | 0.5 V to 5.5 V | 0.5 V to 5.5 V |
| Temperature Grade | Industrial (-40 C to +85 C), -170 suffix | Industrial (-170 suffix) | Industrial (-170 suffix) | Industrial (-170 suffix) | Industrial (-170 suffix) |
| Lead Pitch | 0.5 mm | 0.5 mm | 0.5 mm | 0.5 mm | 0.5 mm |
| Programmable Peripheral Blocks | PSoC 3 configurable analog and digital blocks | PSoC 3 configurable analog and digital blocks | PSoC 3 configurable analog and digital blocks | PSoC 3 configurable analog and digital blocks | PSoC 3 configurable analog and digital blocks |
Wichtigste Unterscheidungsmerkmale
- Mid-density flash that fits industrial firmware without excess cost (vs. CY8C3647AXE-170)
- Full 100-pin I/O access in a single 14 x 14 mm body (vs. CY8C3644AXE-170)
- Upgrade path to 256 KB flash without a PCB change (vs. CY8C3667AXE-170)
- Configurable PSoC 3 analog and digital blocks replace external glue (vs. ATMEGA808-AU)
Designhinweise
The 100-lead TQFP body is 14 x 14 mm with a 0.5 mm lead pitch, which sets the minimum trace and gap rules for your fab. Route the SWD programming header on a dedicated 2 x 5 or 1.27 mm pitch footprint reachable by a pogo fixture, and keep it on the board edge or near a test point so production programming does not require disassembly. Place the device centrally so the 100 I/O lines fan out without long stubs into analog sections.
Estimated: with a 3.3 V rail and an average core plus IO load of about 15 mA at 48 MHz, the device dissipates roughly 50 mW of internal power, so no heatsink is needed. The larger concern is rail integrity: place a 100 nF ceramic plus a 1 uF bulk capacitor at each supply pin group, keep the loop between the decoupling capacitor and the pad as short as possible, and provide a clean, low-impedance ground reference plane under the entire device to keep analog and digital return currents from sharing paths.
PSoC 3 devices carry configurable analog blocks whose internal routing competes with fast digital edges. Keep the analog input pins away from the SWD and serial programming lines, guard the analog ground reference with a continuous plane rather than a split, and follow the family datasheet recommendation of placing the crystal or external clock components on the dedicated clock pins with a solid ground connection. Re-check the pin assignment table whenever you change the device configuration, since the peripheral mapping can override the default pins.
The most common mistakes on this part are ordering the wrong package suffix and misjudging the flash density. The AXE suffix designates the 100-lead TQFP industrial package; do not assume a 48-pin or 32-pin CY8C36xx board accepts it without a footprint change. Second, verify that your firmware plus the on-chip configuration blocks fit inside the 64 KB of flash, since PSoC 3 configuration data consumes part of that space and the 48 KB CY8C3645 variant leaves far less headroom for the same application.
Compliance-Informationen
The part is catalogued as a RoHS-compliant component. The -170 suffix denotes the industrial temperature grade, not an automotive qualification, so AEC-Q100 is not applicable to this ordering variant. Request the current declarations via the Request a Quote form for your audit file.
