ST6369 datasheet(64/71 Pages) STMICROELECTRONICS

64 / 71 page

ST63E69,T69 EPROM/OTP DESCRIPTION.

The ST63E69 is the EPROM version of the

ST6369 ROM product. It is intended for use during

the development of an application, and for pre-pro-

duction

and

small

volume production.

The

ST63T69 OTP has the same characteristics. They

both include EPROM memory instead of the ROM

memory of the ST6369, and so the program and

constants of the program can be easily modified by

the user with the ST63E69 EPROM programming

board from SGS-THOMSON.

The Table 3 is a summary of the EPROM/ROM

map and its reserved area.

From a user point of view (with the following excep-

tions) the ST63E69,T69 products have exactly the

same software and hardware features of the ROM

version. An additional mode is used to configure

the part for programming of the EPROM, this is set

by a +12.5V voltage applied to the TEST/VPP pin.

The programming of the ST63E69,T69 is de-

scribed in the User Manual of the EPROM Pro-

gramming board.

On the ST63E69, all the 7948 bytes of PROGRAM

memory are available for the user, as all the

EPROM memory can be erased by exposure to UV

light. On the ST63T69 (OTP device) a reserved

area for test purposes exists, as for the ST6369

ROM device. In order to avoid any discrepancy be-

tween program functionality when using the

EPROM, OTP and ROM it is recommended not to

use these reserved areas, even when using the

ST63E69.

THE READER IS ASKED TO REFER TO THE

DATASHEET OF THE ST6369 ROM-BASED DE-

VICE FOR FURTHER DETAILS.

EPROM ERASING

The EPROM of the windowed package of the

ST63E69 may be erased by exposure to Ultra Vio-

let light.

The erasure characteristic of the

ST63E69

EPROM is such that erasure begins when the

memory is exposed to light with wave lengths

shorter than approximately 4000Å. It should be

noted that sunlight and some types of fluorescent

lamps have wavelengths in the range3000-4000Å.

It is thus recommended that the window of the

ST63E69 package be covered by an opaque label

to prevent unintentional erasure problems when

testing the application in such an environment.

The recommended erasure procedure of the

ST63E69 EPROM is exposure to short wave ultra-

violet light which has wavelength 2537Å. The inte-

grated dose (i.e. UV intensity x exposure time) for

erasure should be a minimum of 15 W-sec/cm

The erasure time with this dosage is approximately

15 to 20 minutes using an ultraviolet lamp with

12000

µW/cm2 power rating. The ST63E69 should

be placed within 2.5 cm (1 inch) of the lamp tubes

during erasure.

ROM Page

Device Address

Description

PAGE 0

0000H-007FH

0080H-07FFH

Reserved

User ROM

PAGE 1

“STATIC”

0800H-0F9FH

0FA0H-0FEFH

0FF0H-0FF7H

0FF8H-0FFBH

0FFCH-0FFDH

0FFEH-0FFFH

User ROM

Reserved

Interrupt Vectors

Reserved

NMI Vector

Reset Vector

PAGE 2

0000H-000FH

0010H-07FFH

Reserved

User ROM

PAGE 3

0000H-000FH

0010H-07FFH

Reserved

User ROM

Table 3. EPROM/ROM Map

ST63E69,ST63T69

60/67

ST6369 数据表(PDF) 64 Page - STMicroelectronics

ST6369 数据表(HTML) 64 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71

数据表下载

链接网址

ST6369 数据表(PDF) 64 Page - STMicroelectronics

ST6369 数据表(HTML) 64 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71

数据表 下载

链接网址

数据表下载