Integrated Circuits (ICs)

CY8C3666LTI-027

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INFINEON

MCU 8-BIT 8051 RISC 64KB FLASH 2.5V/3.3V/5V 68-PIN QFN EP TRAY

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DocumentsTechnical Data Sheet EN

Integrated Circuits (ICs)

CY8C3666LTI-027

Active

INFINEON

MCU 8-BIT 8051 RISC 64KB FLASH 2.5V/3.3V/5V 68-PIN QFN EP TRAY

Deep-Dive with AI

DocumentsTechnical Data Sheet EN

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	CY8C3666LTI-027

Connectivity	I2C, SPI, LINbus, USB, EBI/EMI, UART/USART
Core Processor	8051
Core Size	8-Bit
Data Converters	A/D 16x12b, D/A 4x8b
EEPROM Size	2K x 8
Mounting Type	Surface Mount
Number of I/O [custom]	38
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Oscillator Type	Internal
Package / Case	68-VFQFN Exposed Pad
Peripherals	DMA, LCD, PWM, CapSense, WDT, POR
Program Memory Size	64 KB
Program Memory Type	FLASH
RAM Size	8 K
Speed	67 MHz
Supplier Device Package	68-QFN (8x8)
Voltage - Supply (Vcc/Vdd) [Max]	5.5 V
Voltage - Supply (Vcc/Vdd) [Min]	1.71 V

CY8C3666 Series

Part	Oscillator Type	Program Memory Size	Mounting Type	RAM Size	Connectivity	Speed	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Data Converters	Core Size	Package / Case	Core Processor	Supplier Device Package	Number of I/O	Program Memory Type	EEPROM Size	Peripherals	Operating Temperature [Max]	Operating Temperature [Min]	Number of I/O [custom]	Grade	Qualification
INFINEON CY8C3666LTI-011	Internal	64 KB	Surface Mount	8 K	EBI/EMI I2C LINbus SPI UART/USART	67 MHz	1.71 V	5.5 V	A/D 16x12b D/A 4x8b	8-Bit	48-VFQFN Exposed Pad	8051	48-QFN (7x7)	25	FLASH	2K x 8	CapSense DMA POR PWM WDT	85 C	-40 ¯C
INFINEON CY8C3666AXI-202	Internal	64 KB	Surface Mount	8 K	EBI/EMI I2C LINbus SPI UART/USART	67 MHz	1.71 V	5.5 V	A/D 16x12b D/A 4x8b	8-Bit	100-LQFP	8051	100-TQFP (14x14)	62	FLASH	2K x 8	CapSense DMA LCD POR PWM WDT	85 C	-40 ¯C
INFINEON CY8C3666LTI-203	Internal	64 KB	Surface Mount	8 K	EBI/EMI I2C LINbus SPI UART/USART	67 MHz	1.71 V	5.5 V	A/D 16x12b D/A 4x8b	8-Bit	68-VFQFN Exposed Pad	8051	68-QFN (8x8)		FLASH	2K x 8	CapSense DMA LCD POR PWM WDT	85 C	-40 ¯C	38
INFINEON CY8C3666AXI-036	Internal	64 KB	Surface Mount	8 K	EBI/EMI I2C LINbus SPI UART/USART USB	67 MHz	1.71 V	5.5 V	A/D 16x12b D/A 4x8b	8-Bit	100-LQFP	8051	100-TQFP (14x14)	62	FLASH	2K x 8	CapSense DMA LCD POR PWM WDT	85 C	-40 ¯C
INFINEON CY8C3666AXI-036	Internal	64 KB	Surface Mount	8 K	EBI/EMI I2C LINbus SPI UART/USART USB	67 MHz	1.71 V	5.5 V	A/D 16x12b D/A 4x8b	8-Bit	100-LQFP	8051	100-TQFP (14x14)	62	FLASH	2K x 8	CapSense DMA LCD POR PWM WDT	85 C	-40 ¯C
INFINEON CY8C3666LTI-027	Internal	64 KB	Surface Mount	8 K	EBI/EMI I2C LINbus SPI UART/USART USB	67 MHz	1.71 V	5.5 V	A/D 16x12b D/A 4x8b	8-Bit	68-VFQFN Exposed Pad	8051	68-QFN (8x8)		FLASH	2K x 8	CapSense DMA LCD POR PWM WDT	85 C	-40 ¯C	38
INFINEON CY8C3666LTI-027T	Internal	64 KB	Surface Mount	8 K	EBI/EMI I2C LINbus SPI UART/USART USB	67 MHz	1.71 V	5.5 V	A/D 16x12b D/A 4x8b	8-Bit	68-VFQFN Exposed Pad	8051	68-QFN (8x8)		FLASH	2K x 8	CapSense DMA LCD POR PWM WDT	85 C	-40 ¯C	38
INFINEON CY8C3666PVA-022	Internal	64 KB	Surface Mount	8 K	EBI/EMI I2C LINbus SPI UART/USART USB	67 MHz	1.71 V	5.5 V	A/D 16x12b D/A 4x8b	8-Bit	48-BSSOP (0.295" 7.50mm Width)	8051	48-SSOP	25	FLASH	2K x 8	CapSense DMA POR PWM WDT	85 C	-40 ¯C		Automotive	AEC-Q100
INFINEON CY8C3666AXI-052T	Internal	64 KB	Surface Mount	8 K	EBI/EMI I2C LINbus SPI UART/USART	67 MHz	1.71 V	5.5 V	A/D 16x12b D/A 4x8b	8-Bit	100-LQFP	8051	100-TQFP (14x14)	62	FLASH	2K x 8	CapSense DMA POR PWM WDT	85 C	-40 ¯C
INFINEON CY8C3666AXI-202T	Internal	64 KB	Surface Mount	8 K	EBI/EMI I2C LINbus SPI UART/USART	67 MHz	1.71 V	5.5 V	A/D 16x12b D/A 4x8b	8-Bit	100-LQFP	8051	100-TQFP (14x14)	62	FLASH	2K x 8	CapSense DMA LCD POR PWM WDT	85 C	-40 ¯C

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Arrow	N/A	1	$ 16.02
		10	$ 13.30
		25	$ 12.38
		100	$ 12.05
		260	$ 11.92
Digikey	N/A	80	$ 17.76
		80	$ 17.76
		683	$ 16.29
		683	$ 16.29
Mouser	N/A	1	$ 16.12
		10	$ 13.34
		25	$ 12.39
		100	$ 12.38
		260	$ 12.37
Newark	Each	1	$ 16.79
		5	$ 15.33
		10	$ 14.49
		25	$ 13.99

Description

General part information

CY8C3666 Series

MCU 8-BIT 8051 RISC 64KB FLASH 2.5V/3.3V/5V 68-PIN QFN EP TRAY

Documents

Technical documentation and resources

Technical Data Sheet EN

Datasheet