參數(shù)資料
型號: KS88P4716
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: new SAM87RC family of 8-bit single-chip CMOS microcontrollers offers a fast and efficient CPU, a wide range of integrated peripherals, and various mas
中文描述: 新SAM87RC家庭的8位單芯片CMOS微控制器提供了快速,高效的CPU,一個廣泛的集成外設(shè),以及各種馬航
文件頁數(shù): 25/26頁
文件大?。?/td> 180K
代理商: KS88P4716
KS88C4708/C4716/P4716 (Preliminary Spec)
KS88P4716 OTP
16-3
Table 16-1. Descriptions of Pins Used to Read/Write the EPROM
Main Chip
During Programming
Pin Name
P4.3
Pin Name
SDAT
Pin No.
9(3)
I/O
I/O
Function
Serial data pin. Output port when reading and
input port when writing. Can be assigned as a
Input/push-pull output port.
Serial clock pin. Input only pin.
Power supply pin for EPROM cell writing
(indicates that OTP enters into the writing mode).
When 12.5 V is applied, OTP is in writing mode
and when 5 V is aplied, OTP is in reading mode.
(Option)
Chip Initialization
Logic power supply pin. V
DD
should be tied to
+5 V during programming.
P4.2
TEST
SCLK
V
PP
10(4)
14(16)
I
I
RESET
RESET
18(12)
11(5)/12(6)
I
V
DD
/V
SS
V
DD
/V
SS
NOTE:
( ) means 44 QFP package.
Table 16-2. Comparison of KS88P4716 and KS88C4708/C4716 Features
Characteristic
Program Memory
Operating Voltage (V
DD
)
OTP Programming Mode
KS88P4716
KS88C4708/C4716
8/16-Kbyte mask ROM
1.8 V to 5.5 V
16-Kbyte EPROM
1.8 V to 5.5 V
V
DD
= 5 V, V
PP
(EA) = 12.5 V
42 SDIP/44 QFP
User Program 1 time
Pin Configuration
EPROM Programmability
42 SDIP/44 QFP
Programmed at the factory
OPERATING MODE CHARACTERISTICS
When 12.5 V is supplied to the V
PP
(TEST) pin of the KS88P4716, 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 16-3 below.
Table 16-3. Operating Mode Selection Criteria
V
DD
V
PP
(TEST)
5 V
12.5 V
12.5 V
12.5 V
REG/
MEM
ADDRESS
(A15–A0)
R/W
MODE
5 V
0
0
0
1
0000H
0000H
0000H
0E3FH
1
0
1
0
EPROM read
EPROM program
EPROM verify
EPROM read protection
NOTE
:
"0" means Low level; "1" means High level.
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