7534 datasheet(39/55 Pages) RENESAS

39 / 55 page

7534 Group

Rev.2.00

Jun 21, 2004

page 39 of 54

REJ03B0099-0200Z

Note on Power Source Voltage

When the power source voltage value of a microcomputer is less

than the value which is indicated as the recommended operating

conditions, the microcomputer does not operate normally and may

perform unstable operation.

In a system where the power source voltage drops slowly when

the power source voltage drops or the power supply is turned off,

reset a microcomputer when the supply voltage is less than the

recommended operating conditions and design a system not to

cause errors to the system by this unstable operation.

DATA REQUIRED FOR MASK ORDERS

The following are necessary when ordering a mask ROM produc-

tion:

(1) Mask ROM Order Confirmation Form

(2) Mark Specification Form

(3) Data to be written to ROM, in EPROM form

................................... (three identical copies) or one floppy disk

* For the mask ROM confirmation and the mark specifications,

refer to the "Renesas Technology Corp." Homepage

(http://www.renesas.com/en/rom).

ROM PROGRAMMING METHOD

The built-in PROM of the blank One Time PROM version can be

read or programmed with a general-purpose PROM programmer us-

ing a special programming adapter. Set the address of PROM pro-

grammer in the user ROM area.

The PROM of the blank One Time PROM version is not tested or

screened in the assembly process and following processes. To en-

sure proper operation after programming, the procedure shown in

Figure 47 is recommended to verify programming.

Fig. 47 Programming and testing of One Time PROM version

Programming with

PROM programmer

Screening (Caution)

(150

°C for 40 hours)

Verification with PROM

programmer

Functional check in

target device

The screening temperature is far higher

than the storage temperature. Never

expose to 150

°C exceeding 100 hours.

Caution:

Package

32P6U-A

36P2R-A

42P4B

Name of Programming Adapter

PCA7435GPG03

PCA7435FP, PCA7435FPG02

PCA7435SP, PCA7435SPG02

Table 6 Special programming adapter

7534 датащи(PDF) 39 Page - Renesas Technology Corp

7534 датащи(HTML) 39 Page - Renesas Technology Corp

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

датащи скачать

ссылки URL