RP2040-E4

Part: RP2040 — Raspberry Pi (Trading) Ltd.

Type: Microcontroller

Description: Low-cost, high-performance microcontroller featuring dual ARM Cortex-M0+ processors running up to 133 MHz, 264 KB on-chip SRAM, and support for up to 16 MB off-chip Flash memory.

Operating Conditions:

• Supply voltage: 1.8–3.3 V (IOVDD)
• Max CPU frequency: Up to 133 MHz

Absolute Maximum Ratings:

• Max supply voltage: 3.63 V (IOVDD)

Key Specs:

• Processor: Dual ARM Cortex-M0+
• Max CPU frequency: 133 MHz
• On-chip SRAM: 264 KB
• Max off-chip Flash support: 16 MB
• GPIO pins: 30 multi-function
• ADC: 4-channel, 12-bit
• DMA channels: 8
• PIO state machines: 8

Features:

• Dual ARM Cortex-M0+ processors
• 264KB on-chip SRAM
• Support for up to 16MB off-chip Flash
• DMA controller
• 2 × SPI, 2 × I2C, 2 × UART
• 16 × PWM channels
• USB 1.1 Host/Device controller and PHY
• 8 × Programmable I/O (PIO) state machines
• 4-channel 12-bit ADC with internal temperature sensor
• Low-power sleep and dormant modes
• On-chip voltage regulator
• Accurate on-chip clock
• 30 multi-function GPIO pins

Package:

The ARM Cortex-M0+ processor features and benefits are:

• Tight integration of system peripherals reduces area and development costs.

• Thumb instruction set combines high code density with 32-bit performance.

• Support for single-cycle I/O access.

• Power control optimization of system components.

• Integrated sleep modes for low-power consumption.

• Fast code execution enables running the processor with a slower clock or increasing sleep mode time.

• Optimized code fetching for reduced flash and ROM power consumption.

• Hardware multiplier.

• Deterministic, high-performance interrupt handling for time-critical applications.

• Deterministic instruction cycle timing.

• Support for system level debug authentication.

• Serial Wire Debug reduces the number of pins required for debugging.

Name	Description
GPIOx	General-purpose digital input and output. RP2040 can connect one of a number of internal peripherals to each GPIO, or control GPIOs directly from software.
GPIOx/ADCy	General-purpose digital input and output, with analogue-to-digital converter function. The RP2040 ADC has an analogue multiplexer which can select any one of these pins, and sample the voltage.
QSPIx	Interface to a SPI, Dual-SPI or Quad-SPI flash device, with execute-in-place support. These pins can also be used as software-controlled GPIOs, if they are not required for flash access.
USB_DM and USB_DP	USB controller, supporting Full Speed device and Full/Low Speed host. A 27Ω series termination resistor is required on each pin, but bus pullups and pulldowns are provided internally.
XIN and XOUT	Connect a crystal to RP2040's crystal oscillator. XIN can also be used as a single-ended CMOS clock input, with XOUT disconnected. The USB bootloader requires a 12 MHz crystal or 12 MHz clock input.
RUN	Global asynchronous reset pin. Reset when driven low, run when driven high. If no external reset is required, this pin can be tied directly to IOVDD.
SWCLK and SWDIO	Access to the internal Serial Wire Debug multi-drop bus. Provides debug access to both processors, and can be used to download code.
TESTEN	Factory test mode pin. Tie to GND.
GND	Single external ground connection, bonded to a number of internal ground pads on the RP2040 die.
IOVDD	Power supply for digital GPIOs, nominal voltage 1.8 V to 3.3 V

Table 1. The function of each pin is briefly described here. Full electrical specifications can be found in Chapter 5.

Table 2. General Purpose Input/Output (GPIO) Bank 0 Functions

Name	Description
USB_VDD	Power supply for internal USB Full Speed PHY, nominal voltage 3.3 V
ADC_AVDD	Power supply for analogue-to-digital converter, nominal voltage 3.3 V
VREG_VIN	Power input for the internal core voltage regulator, nominal voltage 1.8 V to 3.3 V
VREG_VOUT	Power output for the internal core voltage regulator, nominal voltage 1.1 V, 100 mAmax current
DVDD	Digital core power supply, nominal voltage 1.1 V. Can be connected to VREG_VOUT, or to some other board-level power supply.

Parameter	Symbol	Minimum	Maximum	Units	Comment
Pin Input Leakage Current	I IN		1	μ A
Input Voltage High @IOVDD=1.8V	V IH	0.65 * IOVDD	IOVDD + 0.3	V
Input Voltage High @IOVDD=2.5V	V IH	1.7	IOVDD + 0.3	V
Input Voltage High @IOVDD=3.3V	V IH	2	IOVDD + 0.3	V
Input Voltage Low @IOVDD=1.8V	V IL	-0.3	0.35 * IOVDD	V

characteristics

Parameter	Symbol	Minimum	Maximum	Units	Comment
Input Voltage Low @IOVDD=2.5V	V IL	-0.3	0.7	V
Input Voltage Low @IOVDD=3.3V	V IL	-0.3	0.8	V
Input Hysteresis Voltage@ IOVDD=1.8V	V HYS	0.1 * IOVDD		V	Schmitt Trigger enabled
Input Hysteresis Voltage@ IOVDD=2.5V	V HYS	0.2		V	Schmitt Trigger enabled
Input Hysteresis Voltage@ IOVDD=3.3V	V HYS	0.2		V	Schmitt Trigger enabled
Output Voltage High@ IOVDD=1.8V	V OH	1.24	IOVDD	V	I OH = 2, 4, 8 or 12mA depending on setting
Output Voltage High@ IOVDD=2.5V	V OH	1.78	IOVDD	V	I OH = 2, 4, 8 or 12mA depending on setting
Output Voltage High@ IOVDD=3.3V	V OH	2.62	IOVDD	V	I OH = 2, 4, 8 or 12mA depending on setting
Output Voltage Low@ IOVDD=1.8V	V OL	0	0.3	V	I OL = 2, 4, 8 or 12mA depending on setting
Output Voltage Low@ IOVDD=2.5V	V OL	0	0.4	V	I OL = 2, 4, 8 or 12mA depending on setting
Output Voltage Low@ IOVDD=3.3V	V OL	0	0.5	V	I OL = 2, 4, 8 or 12mA depending on setting
Pull-Up Resistance	R PU	50	80	kΩ
Pull-Down Resistance	R PD	50	80	kΩ
Maximum Total IOVDD current	I IOVDD_MAX		50	mA	Sum of all current being sourced by GPIO and QSPI pins
Maximum Total VSS current due to IO (IOVSS)	I IOVSS_MAX		50	mA	Sum of all current being sunk into GPIO and QSPI pins
Parameter	Symbol	Minimum	Maximum	Units	Comment
Pin Input Leakage Current	I IN		1	μ A

Table 633. Oscillator pin characteristics when using a Square Wave input

Parameter	Symbol	Minimum	Maximum	Units	Comment
Single Ended Input Voltage High	V IHSE	2		V
Single Ended Input Voltage Low	V ILSE		0.8	V
Differential Input Voltage High	V IHDIFF	0.2		V
Differential Input Voltage Low	V ILDIFF		-0.2	V
Output Voltage High	V OH	2.8	USB_VDD	V
Output Voltage Low	V OL	0	0.3	V
Pull-Up Resistance - RPU2	R PU2	0.873	1.548	kΩ
Pull-Up Resistance - RPU1&2	R PU1&2	1.398	3.063	kΩ
Pull-Down Resistance	R PD	14.25	15.75	kΩ
Parameter	Symbol	Minimum	Maximum	Units	Comment
ADC Input Voltage Range	V PIN_ADC	0	ADC_AVDD	V
Effective Number of Bits	ENOB	9		bits	Simulated
Resolved Bits			12	bits
ADC Input Impedance	R IN_ADC	100		kΩ
Parameter	Symbol	Minimum	Maximum	Units	Comment
Input Voltage High	V IH	0.65*IOVDD	IOVDD + 0.3	V	XIN only. XOUT floating
Input Voltage Low	V IL	0	0.35*IOVDD	V	XIN only. XOUT floating

See Section 2.16 for more details on the Oscillator, and Minimal Design Example for information on crystal usage.

Parameter	Symbol	Minimum	Maximum	Units	Comment
I/O Supply Voltage	IOVDD	-0.5	3.63	V
Voltage at IO	V PIN	-0.5	IOVDD + 0.5	V

Parameter	Symbol	Minimum	Typical	Maximum	Units	Comment
Case	T C	-20		85	°C
Temperature

The regulator must have 1 μ F capacitors placed close to its input (VREG_VIN) and output (VREG_VOUT) pins.