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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Part Number

MCU Core

MHz

Flash (kB)

RAM (kB)

Dig I/O Pins

5 Volt Tolerant

ADC 1

USB

Temp Sensor

Timers (16-bit)

PCA Channels

ADC 2

DAC

Comparators

UART

SPI

I2C

HS I2C Slave

I2S

EMIF

CAN

LIN

AES

AEC-Q100

Vdd (min)

Vdd (max)

Package Type

Package Size (mm)

Internal Osc.

VREF

Debug Interface

Other

C8051F320

Buy Dev Kit

8051

2.25

10-bit, 17-ch., 200 ksps

—

5.25

QFP32

7x7

±1.5

—

C8051F321

Buy Dev Kit

8051

2.25

10-bit, 13-ch., 200 ksps

—

5.25

QFN28

5x5

±1.5

—

C8051F326

Buy

8051

1.5

—

2.7

5.25

QFN28

5x5

±1.5

Separate I/O Supply Pin

C8051F327

Buy

8051

1.5

—

2.7

5.25

QFN28

5x5

±1.5

Fixed I/O Supply Pin

C8051F340-GQ

Buy

8051

4.25

10-bit, 20-ch., 200 ksps

—

2.7

5.25

QFP48

7x7

±1.5

—

C8051F341-GQ

Buy

8051

2.25

10-bit, 20-ch., 200 ksps

—

2.7

5.25

QFP48

7x7

±1.5

—

C8051F342-GM

Buy

8051

4.25

10-bit, 21-ch., 200 ksps

—

2.7

5.25

QFN32

5x5

±1.5

—

C8051F342-GQ

Buy

8051

4.25

10-bit, 21-ch., 200 ksps

—

2.7

5.25

QFP32

7x7

±1.5

—

C8051F346-GM

(NRND) Buy

8051

4.25

10-bit, 21-ch., 200 ksps

—

2.7

5.25

QFN32

5x5

±1.5

—

C8051F34A-GM

Buy

8051

4.25

10-bit, 21-ch., 200 ksps

—

2.7

5.25

QFN32

5x5

±1.5

—

C8051F34A-GQ

Buy

8051

4.25

10-bit, 21-ch., 200 ksps

—

2.7

5.25

QFP32

7x7

±1.5

—

C8051F34B-GQ

(NRND) Buy

8051

2.25

10-bit, 21-ch., 200 ksps

—

2.7

5.25

QFP32

7x7

±1.5

—

C8051F32x/34x USB Microcontrollers

C8051F32x-F34x Common Specs

C8051F320/21 8-bit MCU Development Kit

C8051F320/21 8-bit MCU Development Kit

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 Buy Dev Kit	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 Dev Kit	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 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 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 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 (NRND) 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 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

C8051F320/21 8-bit MCU Development Kit

C8051F320/21 8-bit MCU Development Kit

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