Intel MCS 51 User Manual

HARDWARE DESCRIPTIONOF THE 8051,8052 AND 80C51
SYATS1 STATS2 STAY53 STATS4 SYATS5 STATS6 STATS1 ~AlS2
Imlmlmlmlnlmlmlmlm lmlmlmlmlnlm,nl
XIAk
ALS: ~
~:
DATA
OATA
I
OATA
4
+aANPLsD
-SAMPLSO
w:
E
1 8
1
P2:
Pet’loul
Pctlour
Pcnoul
270252-29
Figure 36. External Program Memory Fetches
ln,mlPllmlnlml Mlml MlwlPllmlPl IAIF+I
STATS4 STATE 5 SYATS6 SYATE1 SYAYE2 STATS3 STA= 4 SIATE5
XTAL
‘“: ~
~&
1
PCLOUYF
PRoGw NSNORY
OAIA2AMPLS0-
s axrER?4AL
PO:
OPLORRI
If
FLOAT
OUT
P2:
PCHOR
0% ORP2SFRour
PCHOR
P2am
P2am
270252-20
Figure37.ExtemelDateMemoryRead~cle
3-34

Intel MCS 51 Specifications

General

Brand	Intel
Model	MCS 51
Category	Microcontrollers
Language	English