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參數(shù)資料
| 型號： | C505C |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| 中文描述： | 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存 |
| 文件頁數(shù)： | 56/88頁 |
| 文件大小： | 1224K |
| 代理商： | C505C |
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C505/C505C/C505A/C505CA
Data Sheet
52
12.00
The following
Table 11
contains the functional description of all C505A-4E/C505CA-4E pins which
are required for OTP memory programming.
Table 11
Pin Definitions and Functions in Programming Mode
Symbol
Pin Number
I/O
*)
Function
RESET
4
I
Reset
This input must be at static
“
1
“
(active) level during the whole
programming mode.
PMSEL0
PMSEL1
5
7
I
I
Programming mode selection pins
These pins are used to select the different access modes in
programming mode. PMSEL1,0 must satisfy a setup time to the
rising edge of PALE. When the logic level of PMSEL1,0 is
changed, PALE must be at low level.
PMSEL1
PMSEL0
Access Mode
PSEL
8
I
Basic programming mode select
This input is used for the basic programming mode selection
and must be switched according
Figure 28
.
PRD
9
I
Programming mode read strobe
This input is used for read access control for OTP memory read,
Version Register read, and lock bit read operations.
PALE
10
I
Programming address latch enable
PALE is used to latch the high address lines. The high address
lines must satisfy a setup and hold time to/from the falling edge
of PALE. PALE must be at low level when the logic level of
PMSEL1,0 is changed.
XTAL2
14
O
XTAL2
Output of the inverting oscillator amplifier.
XTAL1
15
I
XTAL1
Input to the oscillator amplifier.
V
SS
16
–
Circuit ground potential
must be applied in programming mode.
V
DD
17
–
Power supply terminal
must be applied in programming mode.
*) I = Input
O= Output
0
0
Reserved
0
1
Read version bytes
1
0
Program/read lock bits
1
1
Program/read OTP memory byte
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