Table 3. Feature Differences Between Packages (continued)
Feature
S32R274
S32R372 257 MAPBGA
S32R372 141 MAPBGA
SPI
2 modules
2 modules
2 modules, some chip selects not
available. See device muxing
sheet for details.
IIC
2 modules
2 modules
1 module (IIC1 only).
Serial Inter-Processor
Interface (SIPI)
Yes
None
None
System Timer Module
(STM)
3 modules x 4 channels
2 modules x 4 channels
2 modules x 4 channels
System Timer Module
(STM)
eTimer_0: 6 channels,
eTimer_1: 6 channels
eTimer_1:6 channels
eTimer_1:5 channels
FlexRay
1 module
None
None
FlexCAN
1x FlexCAN, 2x FlexCAN-
FD
2x FlexCAN-FD
2x FlexCAN-FD
Device Power Supply
Internal or External
regulation modes
Internal or External regulation
modes
External regulation mode only
3 Power supply
The S32R family of microcontroller units have a robust power management infrastructure that enables applications to select
among various user modes and to monitor internal voltages for high- and low-voltage conditions. The monitoring capability
is also used to ensure supply voltages and internal voltages are within the required operating ranges before the
microcontroller can exit the reset state and enter operation.
The microcontroller offers a DC-DC voltage regulator function as part of the power management controller (PMC) module.
This regulator can be used to supply the digital low voltage required for the internal logic and other low voltage supplies. The
device can be configured to use either this internal regulation mode or an external 1.25 V regulated power supply to provide
the core voltage. The standard configuration utilizes the internal DC-DC voltage regulator, with the following external supply
voltages:
• 3.3 V for main general purpose I/O, SAR ADC supply and reference, JTAG debug interface, flash memory supply
voltage and external communication interfaces (Ethernet, FlexRay, etc.)
• 3.13 - 5.5 V (required) for the internal DC-DC voltage regulator which supplies 1.25 V for the internal logic, PLL
circuits and low voltage/Nexus Aurora I/O, and MIPI-CSI2.
Detailed information on the power management configurations can be found in the
1. Not available on the S32R372 141BGA Package.
Power supply
S32R27/37 Hardware Design Guide, Rev. 1, 04/2018
NXP Semiconductors
3