NXP Semiconductors MPC5644A, Reference Manual, Page: 28 / 1735

Introduction
MPC5644A Microcontroller Reference Manual, Rev. 6
28 Freescale Semiconductor
1.2 MPC5644A and MPC5642A Device Comparison
Table 1-1 summarizes the features MPC5644A and MPC5642A microcontrollers.
Table 1-1. MPC5644A and MPC5642A comparison
Feature MPC5644A MPC5642A
Process 90 nm
Core e200z4 e200z4
SIMD Yes
VLE Yes
Cache 8 KB instruction
Non-Maskable Interrupt (NMI) NMI & Critical Interrupt
MMU 24 entry
MPU 16 entry
Crossbar switch 5

4 4

4
Core performance 0–150 MHz 0–150 MHz
Windowing software watchdog Yes
Core Nexus Class 3+ Class 3+
SRAM 192 KB 128 KB
Flash 4 MB 2 MB
Flash fetch accelerator 4

256-bit
External bus 16-bit (incl 32-bit muxed) 4

128-bit
Calibration bus 16-bit (incl 32-bit muxed) None
DMA 64 ch.
DMA Nexus None
Serial 3
eSCI_A Yes (MSC Uplink)
eSCI_B Yes (MSC Uplink)
eSCI_C Yes
CAN 3
CAN_A 64 buf
CAN_B 64 buf
CAN_C 64 buf
SPI 3