參數(shù)資料
型號: SAB-C540U-EN
廠商: SIEMENS A G
元件分類: 微控制器/微處理器
英文描述: 8-Bit CMOS Microcontroller
中文描述: 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PQCC44
文件頁數(shù): 43/65頁
文件大?。?/td> 427K
代理商: SAB-C540U-EN
Semiconductor Group
43
1997-10-01
C540U
C541U
Basic Programming Mode Selection
The basic programming mode selection scheme is shown in
figure 23
.
Figure 23
Basic Programming Mode Selection
Stable
Clock
(XTAL1 / XTAL2)
RESET
PSEN
PMSEL1,0
PROG
PRD
PSEL
PALE
EA / V
PP
V
CC
5 V
V
PP
V
IH1
"1"
"0"
0,1
"0"
"1"
"0"
0 V
Ready for Access
Mode Selection
During this Period Signals
are not actively driven
MCT03389
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