ST62E62CD データシートの表示（PDF） - STMicroelectronics

部品番号

コンポーネント説明

メーカー

ST62E62CD

8-BIT OTP/EPROM/FASTROM MCUs WITH A/D CONVERTER, SAFE RESET, AUTO-RELOAD TIMER AND EEPROM

STMicroelectronics 

ST62T52CM-Auto ST62T62CM-Auto

MEMORY MAP (Cont’d)

1.3.2 Program Space

Program Space comprises the instructions to be

executed, the data required for immediate ad-

dressing mode instructions, the reserved factory

test area and the user vectors. Program Space is

addressed via the 12-bit Program Counter register

(PC register).

1.3.2.1 Program Memory Protection

The Program Memory in OTP or EPROM devices

can be protected against external readout of mem-

ory by selecting the READOUT PROTECTION op-

tion in the option byte.

In the EPROM parts, READOUT PROTECTION

option can be disactivated only by U.V. erasure

that also results into the whole EPROM context

erasure.

Note: Once the Readout Protection is activated, it

is no longer possible, even for STMicroelectronics,

to gain access to the OTP contents. Returned

parts with a protection set can therefore not be ac-

cepted.

Figure 4. ST62T52C/T62C Program

Memory Map

0000h

RESERVED*

087Fh

0880h

USER

PROGRAM MEMORY

1836 BYTES

(OTP/EPROM)

0F9Fh

0FA0h

0FEFh

0FF0h

0FF7h

0FF8h

0FFBh

0FFCh

0FFDh

0FFEh

0FFFh

RESERVED*

INTERRUPT VECTORS

RESERVED

NMI VECTOR

USER RESET VECTOR

(*) Reserved areas should be filled with 0FFh

7/72

Share Link: