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PDF ( 数据手册 , 数据表 ) STC89LE516RD

零件编号 STC89LE516RD
描述 MCU
制造商 STC MCU
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STC89LE516RD 数据手册, 描述, 功能
STC89Cxx series MCU
STC89LExx series MCU
Data Sheet







STC89LE516RD pdf, 数据表
1.5 Pin Package Drawings
LQFP-44 OUTLINE PACKAGE
D
D1
44 34
1 33
11
12
b
e
23
22
0.05MAX
GATE PLANE
SEATING PLANE
θ0
L
L1
VARIATIONS (ALL DIMENSIONS SHOWN IN MM
SYMBOLS MIN.
NOM
MAX.
A - - 1.60
A1 0.05 - 0.15
A2 1.35 1.40 1.45
c1 0.09 - 0.16
D 12.00
D1 10.00
E 12.00
E1 10.00
e 0.80
1 b(w/o plating) 0.25 0.30 0.35
L 0.45 0.60 0.75
L1 1.00REF
θ0 00 3.50 70
NOTES:
1.JEDEC OUTLINE:MS-026 BSB
2.DIMENSIONS D1 AND E1 D0 NOT
INCLUDE MOLD PROTRUSION.
ALLOWBLE PROTRUSION IS
0.25mm PER SIDE. D1 AND E1 ARE
MAXIMUM PLASTIC BODY SIZE
DIMENSIONS IMCLUDING MOLD
MISMATCH.
3.DIMENSION b DOES NOT INCLUDE
DAMBAR PROTRUSION.ALLOWBLE
DAMBAR PROTRUSION SHALL NOT
CAUSE THE LEAD WIDTH TO EXCEED
THE MAXIMUN b DIMNSION BY MORE
THAN 0.08mm.







STC89LE516RD equivalent, schematic
main:
MOV R3, #0
main_loop:
MOV A, R3
CPL A
MOV P1, A
ACALL delay
INC R3
MOV A, R3
SUBB A, #18H
JC main_loop
MOV P1, #0FFH
CLR IT0
; SETB IT0
SETB EX0
CLR IT1
; SETB IT1
SETB EX1
SETB EA
;P1 LED increment mode changed
;start to run program
;close all LED, MCU go into power-down mode
;low electrical level trigger external interrupt 0
;negative edge trigger external interrupt 0
;enable external interrupt 0
;low electrical level trigger external interrupt 1
;negative edge trigger external interrupt 1
;enable external interrupt 1
;set the global enable
;if don't so, power-down mode cannot be wake up
;MCU will go into idle mode or power-down mode after the following instructions
MOV PCON, #00000010B
;Set PD bit, power-down mode (PD = PCON.1)
; NOP
; NOP
; NOP
;
MOV PCON, #00000001B
;Set IDL bit, idle mode (IDL = PCON.0)
MOV P1, #0DFH
;1101,1111
NOP
NOP
NOP
WAIT1:
SJMP WAIT1
;dynamically stop
END
2.2 RESET Control
In STC89xx series, there are 5 sources to generate internal reset. They are RESET pin, On-chip power-on-reset,
Watch-Dog-Timer, software reset, and On-chip MAX810 POR timing delay.
2.2.1 Reset pin
The RST pin, which is the input to Schmitt Trigger, is input pin for chip reset. A level change of
RESET pin have to keep at least 24 cycles plus 10us in order for CPU internal sampling use. When
this signal is brought high for at least two machine cycles plus 10 us, the internal registers are loaded
with appropriate values for an orderly system start-up. For normal operation, RST is low.










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