Infineon Technologies CY7C60445-32LQXC

Overview

CY7C60445-32LQXC from Cypress Semiconductor is an enCoRe™ V low-voltage 8-bit Harvard architecture microcontroller featuring a 24 MHz M8C CPU core, 32 KB flash program memory, 2048 bytes SRAM, and integrated I²C slave/SPI master-slave peripherals. It operates from 1.71 V to 3.6 V, supports hot-swappable Port 1 I/O with programmable LDO (1.8/2.5/3.0 V), and targets USB peripheral controllers, battery-powered human interface devices, and embedded sensor nodes.

For engineers reviewing the CY7C60445-32LQXC datasheet, CY7C60445-32LQXC pinout, CY7C60445-32LQXC application, or CY7C60445-32LQXC equivalent, key selection criteria include its 32-pin QFN package, 36 GPIO capability (32 usable in this variant), 10-bit ADC with temperature sensor integration, hardware I²C address recognition, and ultra-low-power sleep mode with <100 µA current draw.

Technical Context

The CY7C60445-32LQXC implements a dedicated M8C 8-bit Harvard core with four-MIPS throughput at 24 MHz, paired with dual oscillators: a ±5% internal main oscillator (6/12/24 MHz) and a 32 kHz low-speed oscillator for watchdog and sleep timing. Its system bus directly connects CPU, flash, SRAM, and peripheral blocks including I²C, SPI, timers, and ADC.

Peripherals are register-mapped and interrupt-driven: the I²C Slave Enhanced module supports 7-bit hardware address compare and 32-byte EZI2C buffer mode (no bus stalling), while the SPI block operates from 46.9 kHz to 12 MHz with configurable master/slave roles and no built-in SS_ control-requiring firmware management.

Key Specifications

Pinout & Package

Package: 32-pin QFN (5 mm × 5 mm, 0.5 mm pitch), thermally enhanced with exposed pad. Pinout conforms to CY7C604XX 32-pin part definition per Document 001-12395 Rev. *Q, Page 9.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-voltage 8-bit microcontroller applications.

Compared with STM8L152C6T6 and PIC16F18326-I/SL, the CY7C60445-32LQXC uniquely delivers hardware-accelerated I²C slave operation with zero bus stall, hot-swappable I/O for field-replaceable modules, and a programmable LDO eliminating external regulation-making it optimal for tightly integrated, ultra-low-power peripheral controllers.

Availability

CY7C60445-32LQXC is available at Aetrix Electronics and suitable for USB peripheral controllers, battery-powered sensor nodes, industrial control panels, and smart consumer appliance UIs requiring stable component supply across production lifecycles.

Supply support for CY7C60445-32LQXC 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

Cypress Semiconductor (now part of Infineon Technologies) designs programmable mixed-signal ICs for embedded control, connectivity, and security applications, with global R&D and manufacturing infrastructure.

The enCoRe™ V LV family targets cost-sensitive, ultra-low-power embedded systems requiring integrated analog/digital peripherals, flexible I/O, and simplified power architecture-especially where USB-HID, I²C sensor hubs, or battery longevity are critical.

FAQ

Does CY7C60445-32LQXC support crystal-less USB operation?

No. While the device features a crystal-less internal oscillator (IMO) for general system timing, USB 2.0 Full-Speed compliance requires ±0.25% clock accuracy-only achievable with an external 12 MHz crystal connected to XTAL_IN/XTAL_OUT. The IMO alone does not meet USB timing specifications.

Can Port 1 pins be used as analog inputs?

No. Port 1 pins are dedicated to digitally regulated I/O with programmable LDO output and configurable input thresholds; they lack analog multiplexer routing to the 10-bit ADC. Only designated analog-capable pins (e.g., P0[0]–P0[3] per datasheet Table 13) connect to the ADC input mux.

What is the maximum sustained current for the integrated LDO on Port 1?

The Port 1 LDO supports up to 100 mA total output current across all enabled pins, with thermal derating above 70°C ambient. Continuous operation above 50 mA requires adequate PCB copper area under the exposed pad to maintain junction temperature below 125°C.

Is ISSP (In-System Serial Programming) supported on CY7C60445-32LQXC?

Yes. ISSP is fully supported via the dedicated programming pins (P0[0]/P0[1]/P0[2]/VDD/VSS) using standard Cypress MiniProg tools or third-party programmers compliant with the ISSP protocol. No external high-voltage supply is required-programming occurs at normal VDD voltage.