USB Microcontroller (MCU) - C8051F32x/43x

C8051F32x/34x USB Microcontrollers

Silicon Labs' USB Microcontrollers (MCUs), with embedded full-speed USB 2.0, make it easy to implement industry standard USB connectivity. USBXpress development software is available to provide a complete host and device side software solution.

The USB MCUs feature an on-board universal serial bus (USB) 2.0 function controller with an integrated transceiver and on-chip clock recovery. No external resistors, crystal, voltage regulator, EEPROM, or other components are required. On-chip resources include a high-speed 8051 CPU with up to 64 kB Flash, UARTs, SMBus, SPI, timers, counters, and PWM generators. On-chip analog features include a multi-channel 10-bit ADC, voltage reference, internal oscillator, comparators, and a temperature sensor. Available in 28-pin QFN, 32-pin LQFP, or 48-pin TQFP packages, these devices provide a single-chip solution for embedded USB applications.

C8051F32x-F34x Common Specs

25-48 MIPS 8051 CPU
16-64 kB Flash memory
1536-5376 B RAM
USB 2.0
Integrated transceiver

Intergrated clock recovery
1 kB buffer RAM
Full (12 Mbps), or low-speed operation
Control endpoint plus six bi-directional endpoint pipes

10-bit, 200 ksps ADC
Two asynchronous comparators
Voltage reference
Temperature sensor
15-40 digital I/O

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Find the Right C8051F32x-F34x Device Select Columns

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Part Number	MCU Core	MHz	Flash (kB)	RAM (kB)	Dig I/O Pins	ADC 1	Timers (16-bit)	PCA Channels	ADC 2	DAC	Comparators	UART	SPI	I2C	EMIF	Vdd (min)	Vdd (max)	Package Type	Package Size (mm)	Internal Osc.	Debug Interface	Other
C8051F320 (NRND) Buy	8051	25	16	2.25	25	10-bit, 17-ch., 200 ksps	4	5	—	—	2	1	1	1	0	4	5.25	QFP32	7x7	±1.5	C2	— —
C8051F321 Buy	8051	25	16	2.25	21	10-bit, 13-ch., 200 ksps	4	5	—	—	2	1	1	1	0	4	5.25	QFN28	5x5	±1.5	C2	— —
C8051F326 Buy	8051	25	16	1.5	15	—	2	0	—	—	0	1	0	0	0	2.7	5.25	QFN28	5x5	±1.5	C2	Separate I/O Supply Pin —
C8051F327 Buy	8051	25	16	1.5	15	—	2	0	—	—	0	1	0	0	0	2.7	5.25	QFN28	5x5	±1.5	C2	Fixed I/O Supply Pin —
C8051F340-GQ (NRND) Buy	8051	50	64	4.25	40	10-bit, 20-ch., 200 ksps	4	5	—	—	2	2	1	1	1	2.7	5.25	QFP48	7x7	±1.5	C2	— —
C8051F341-GQ (NRND) Buy	8051	50	32	2.25	40	10-bit, 20-ch., 200 ksps	4	5	—	—	2	2	1	1	1	2.7	5.25	QFP48	7x7	±1.5	C2	— —
C8051F342-GM Buy	8051	50	64	4.25	25	10-bit, 21-ch., 200 ksps	4	5	—	—	2	1	1	1	0	2.7	5.25	QFN32	5x5	±1.5	C2	— —
C8051F342-GQ (NRND) Buy	8051	50	64	4.25	25	10-bit, 21-ch., 200 ksps	4	5	—	—	2	1	1	1	0	2.7	5.25	QFP32	7x7	±1.5	C2	— —
C8051F346-GM Buy	8051	25	64	4.25	25	10-bit, 21-ch., 200 ksps	4	5	—	—	2	1	1	1	0	2.7	5.25	QFN32	5x5	±1.5	C2	— —
C8051F34A-GM Buy	8051	50	64	4.25	25	10-bit, 21-ch., 200 ksps	4	5	—	—	2	2	1	1	0	2.7	5.25	QFN32	5x5	±1.5	C2	— —
C8051F34A-GQ (NRND) Buy	8051	50	64	4.25	25	10-bit, 21-ch., 200 ksps	4	5	—	—	2	2	1	1	0	2.7	5.25	QFP32	7x7	±1.5	C2	— —
C8051F34B-GQ (NRND) Buy	8051	50	32	2.25	25	10-bit, 21-ch., 200 ksps	4	5	—	—	2	2	1	1	0	2.7	5.25	QFP32	7x7	±1.5	C2	— —

C8051F32x/34x USB Microcontrollers

C8051F32x-F34x Common Specs

Find the Right C8051F32x-F34x Device Select Columns

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