S3C9658 Просмотр технического описания (PDF) - Samsung

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Компоненты Описание

производитель

S3C9658

MICROCONTROLLER

Samsung 

S3C9654/C9658/P9658

S3P9658 OTP

Table 17-1. Descriptions of Pins Used to Read/Write the EPROM

Main Chip

Pin Name

P1.0

P1.1

Pin Name

SDAT

SCLK

During Programming

Pin Number (20 DIP) I/O

Function

5

I/O Serial Data Pin (Output when reading, Input when

writing) Input and Push-pull Output Port can be

assigned

4

I/O Serial Clock Pin (Input Only Pin)

RESET

TEST

VDD/VSS

RESET

VPP

(TEST)

VDD/VSS

16

13

19/2

I 0 V : OTP write and test mode

5 V : Operating mode

I Chip Initialization and EPROM Cell Writing Power

Supply Pin (Indicates OTP Mode Entering) When

writing 12.5 V is applied and when reading.

I Logic Power Supply Pin.

Table 17-2. Comparison of S3P9658 and S3C9654/C9658 Features

Characteristic

Program Memory

Operating Voltage (VDD)

OTP Programming Mode

Pin Configuration

EPROM Programmability

S3P9658

8 K-byte EPROM

4.0 V to 5.25 V

VDD = 5 V, VPP (TEST) = 12.5 V

20/18/16 DIP, 20/18/16 SOP

User Program 1 time

S3C9654/C9658

4/8 K-byte mask ROM

4.0 V to 5.25 V

20/18/16 DIP, 20/18/16 SOP, 16SSOP

Programmed at the factory

OPERATING MODE CHARACTERISTICS

When 12.5 V is supplied to the VPP (RESET) pin of the S3P9658, the EPROM programming mode is entered.

The operating mode (read, write, or read protection) is selected according to the input signals to the pins listed in

Table 14-3 below.

Table 17-3. Operating Mode Selection Criteria

VDD VPP (RESET) REG/MEM Address (A15-A0) R/W

Mode

5V

5V

0

0000H

1 EPROM read

12.5 V

0

0000H

0 EPROM program

12.5 V

0

0000H

1 EPROM verify

12.5 V

1

0E3FH

0 EPROM read protection

NOTE: "0" means Low level; "1" means High level.

17-3

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