參數(shù)資料
型號: SST89V54RD2-33-C-NJE
廠商: Microchip Technology
文件頁數(shù): 8/92頁
文件大?。?/td> 0K
描述: IC MCU 8BIT 24KB FLASH 44PLCC
標(biāo)準(zhǔn)包裝: 26
系列: FlashFlex®
核心處理器: 8051
芯體尺寸: 8-位
速度: 33MHz
連通性: EBI/EMI,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,WDT
輸入/輸出數(shù): 36
程序存儲器容量: 16KB(16K x 8)
程序存儲器類型: 閃存
EEPROM 大小: 8K x 8
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 3.6 V
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 44-LCC
包裝: 管件
2011 Silicon Storage Technology, Inc.
DS25087A
10/11
16
FlashFlex MCU
SST89V54RD2/RD / SST89V58RD2/RD
Not Recommended for New Designs
A Microchip Technology Company
Table 6:
CPU related SFRs
Symbol
Description
Direct
Addres
s
Bit Address, Symbol, or Alternative Port Function
Reset
Value
MSB
LSB
ACC1
Accumulator
E0H
ACC[7:0]
00H
B1
B Register
F0H
B[7:0]
00H
PSW1
Program Status
Word
D0H
CYAC
F0
RS1
RS0
OVF1
P
00H
SP
Stack Pointer
81H
SP[7:0]
07H
DPL
Data Pointer
Low
82H
DPL[7:0]
00H
DPH
Data Pointer
High
83H
DPH[7:0]
00H
IE1
Interrupt Enable
A8H
EA
EC
ET2
ES
ET1
EX1
ET0
EX0
00H
IEA1
Interrupt
Enable A
E8H
-
EBO
-
xxxx0xxxb
IP1
Interrupt Priority
Reg
B8H
-
PPC
PT2
PS
PT1
PX1
PT0
PX0
x0000000b
IPH
Interrupt Priority
Reg High
B7H
-
PPCH
PT2H PSH
PT1H
PX1H
PT0H
PX0H
x0000000b
IP11
Interrupt Priority
Reg A
F8H
-
PBO
PX3
PX2
-
xxxx0xxxb
IP1H
Interrupt Priority
Reg A High
F7H
-
PBOH PX3H
PX3
-
xxxx0xxxb
PCON
Power Control
87H
SMOD1 SMOD0
BOF
POF
GF1
GF0
PD
IDL
00010000b
AUXR
Auxiliary Reg
8EH
-
EXTRAM
AO
xxxxxxx00b
AUXR1
Auxiliary Reg 1
A2H
-
GF2
0
-
DPS
xxxx00x0b
XICON2
External
Interrupt Control
AEH
X
EX3
IE3
IT3
0
EX2
IE2
IT2
00H
T0-0.0 25087
1. Bit Addressable SFRs
2. X = Don’t care
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