參數(shù)資料
型號： AT87C51RC2-SLSUL
廠商： International Rectifier
英文描述： High Performance 8-bit Microcontroller
中文描述： 高性能8位微控制器
文件頁數(shù)： 18/85頁
文件大?。?/td> 762K
代理商： AT87C51RC2-SLSUL
18
4188E–8051–08/06
AT/TS8xC51Rx2
address bits (DPL) with data. MOVX @ Ri and MOVX @DPTR will generate either read or
write signals on P3.6 (WR) and P3.7 (RD).
The stack pointer (SP) may be located anywhere in the 256 bytes RAM (lower and upper RAM)
internal data memory. The stack may not be located in the XRAM.
Figure 6-1.
Internal and External Data Memory Address
Table 6-1.
Auxiliary Register
AUXR
XRAM
256 bytes
Upper
128 bytes
Internal
Ram
indirect accesses
Lower
128 bytes
Internal
Ram
direct or indirect
accesses
Special
Function
Register
direct accesses
80
80
00
FF(RA, RB, RC)/2FF (RD)
FF
00
FF
External
Data
Memory
0000
0100 (RA, RB, RC) or 0300 (RD)
FFFF
AUXR
Address 08EH
-
-
-
-
-
-
EXTRAM
AO
Reset value
X
X
X
X
X
X
0
0
Symbol
Function
-
Not implemented, reserved for future use.
(1)
1.
User software should not write 1s to reserved bits. These bits may be used in future 8051 family
products to invoke new features. In that case, the reset or inactive value of the new bit will be 0,
and its active value will be 1. The value read from a reserved bit is indeterminate.
AO
Disable/Enable ALE
AO
Operating Mode
0
ALE is emitted at a constant rate of 1/6 the oscillator frequency (or 1/3 if X2 mode
is used)
1
ALE is active only during a MOVX or MOVC instruction
EXTRAM
Internal/External RAM (00H-FFH) access using MOVX @ Ri/ @ DPTR
EXTRAM
Operating Mode
0
Internal XRAM access using MOVX @ Ri/ @ DPTR
1
External data memory access
相關(guān)PDF資料
PDF描述
AT87C51RC2-SLSUM High Performance 8-bit Microcontroller
AT87C51RD2 High Performance 8-bit Microcontroller
AT87C51RD2-3CSUL High Performance 8-bit Microcontroller
AT87C51RD2-3CSUM High Performance 8-bit Microcontroller
AT87C51RD2-RLTUL High Performance 8-bit Microcontroller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT87C51RC2-SLSUM 功能描述:8位微控制器 -MCU 71RCX2 LYNX 32K OTP PCA DBLE D RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT87C51RD2 制造商:IRF 制造商全稱:International Rectifier 功能描述:High Performance 8-bit Microcontroller
AT87C51RD2-3CSUL 功能描述:8位微控制器 -MCU C52 0.5 m X 2 OTP 0.5 NV 3.3V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT87C51RD2-3CSUM 功能描述:8位微控制器 -MCU C72X2 C52 0.5 m X 2 OTP 0.5 NV RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT87C51RD2-RDTUL 功能描述:8位微控制器 -MCU C52 0.5 mX 2 OTP 3.3V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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