S7G2 datasheet(14/117 Pages) RENESAS

14 / 117 page

R01DS0262EU0150 Rev.1.50

Page 14 of 117

Sep 24, 2025

S7G2 Datasheet

1. Overview

1.5

Pin Functions

Table 1.17

Pin functions (1 of 5)

Function

Signal

I/O

Description

Power supply

VCC

Input

Power supply pin. Connect this pin to the system power supply. Connect it to

VSS through a 0.1-μF capacitor. Place the capacitor close to the pin.

VCC_DCDC

Input

Switching regulator power supply pin.

VLO

I/O

Switching regulator pin.

VCL0 to VCL2

Input

Connect this pin to VSS through a smoothing capacitor used to stabilize the

internal power supply. Place the capacitor close to the pin.

VCL_F

Input

VSS

Input

Ground pin. Connect to the system power supply (0 V).

VBATT

Input

Backup power pin

Clock

XTAL

Output

Pins for a crystal resonator. An external clock signal can be input through the

EXTAL pin.

EXTAL

Input

XCIN

Input

Input/output pins for the sub-clock oscillator. Connect a crystal resonator

between XCOUT and XCIN.

XCOUT

Output

EBCLK

Output

Outputs the external bus clock for external devices

SDCLK

Output

Outputs the SDRAM-dedicated clock

CLKOUT

Output

Clock output pin

Operating mode

control

Input

Pin for setting the operating mode. The signal level on this pin must not be

changed during operation mode transition on release from the reset state.

System control

RES

Input

Reset signal input pin. The MCU enters the reset state when this signal goes

low.

CAC

CACREF

Input

Measurement reference clock input pin

Interrupt

NMI

Input

Non-maskable interrupt request pin

IRQ0 to IRQ15

Input

Maskable interrupt request pins

KINT

KR00 to KR07

Input

A key interrupt can be generated by inputting a falling edge to the key

interrupt input pins

On-chip emulator

TMS

I/O

On-chip emulator or boundary scan pins

TDI

Input

TCK

Input

TDO

Output

TCLK

Output

This pin outputs the clock for synchronization with the trace data

TDATA0 to TDATA3

Output

Trace data output

SWDIO

I/O

Serial wire debug data input/output pin

SWCLK

Input

Serial wire clock pin

SWO

Output

Serial wire trace output pin

External bus

interface

Output

Strobe signal indicating that reading from the external bus interface space is

in progress, active-low

Output

Strobe signal indicating that writing to the external bus interface space is in

progress, in 1-write strobe mode, active-low

WR0, WR1

Output

Strobe signals indicating that either group of data bus pins (D07 to D00 or

D15 to D08) is valid in writing to the external bus interface space, in byte

strobe mode, active-low

BC0, BC1

Output

Strobe signals indicating that either group of data bus pins (D07 to D00 or

D15 to D08) is valid in access to the external bus interface space, in 1-write

strobe mode, active-low

WAIT

Input

Input pin for wait request signals in access to the external space, active-low

CS0 to CS7

Output

Select signals for CS areas, active-low

A00 to A23

Output

Address bus

D00 to D15

I/O

Data bus

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