PAC5253 datasheet(46/68 Pages) ACTIVE-SEMI

46 / 68 page

PAC5253

Power Application Controller

14. MEMORY SYSTEM

14.1. Features



32kB embedded FLASH



100,000 program/erase cycles



10 years data retention



8kB SRAM

14.2. Block Diagram

14.3. Functional Description

The device has multiple banks of embedded FLASH memory, SRAM memory, as well as peripheral control registers that

are all program-accessible in a flat memory map.

14.3.1. Program and Data FLASH

32kB in 32 pages of 1kB each is available for program or data memory. Each of them can be individually erased or written

to while the microcontroller is executing a program from SRAM.

14.3.2. SRAM

Up to 8kB contiguous array of SRAM is available for non-persistent data storage. The SRAM memory supports word

(4-byte), half-word (2-byte) and byte address aligned access. The microcontroller may execute code out of SRAM for time-

critical applications, or when modifying the contents of FLASH memory.

- 46 -

Rev 1.10‒January 28, 2016

Figure 14-1. Memory System

8kB

SRAM

MEMORY SYSTEM

1kB FLASH

PAGES

FLASH

256B INFO

ROM

INFO ROM

SRAM

PAC5253 Datasheet(PDF) 46 Page - Active-Semi, Inc