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P89C51RB2BA Datasheet(PDF) 23 Page - NXP Semiconductors

Part # P89C51RB2BA
Description  80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
PDF  52 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

P89C51RB2BA Datasheet(HTML) 23 Page - NXP Semiconductors

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Philips Semiconductors
Preliminary specification
89C51RB2/89C51RC2/
89C51RD2
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
1999 Sep 23
23
CF
CR
CCF4
CCF3
CCF2
CCF1
CCF0
––
CCON
(C0H)
CH
CL
OVERFLOW
INTERRUPT
16–BIT UP COUNTER
IDLE
TO PCA
MODULES
CMOD
(C1H)
CIDL
WDTE
––
––
––
CPS1
CPS0
ECF
OSC/6 (6 CLOCK MODE)
OR
OSC/12 (12 CLOCK MODE)
TIMER 0 OVERFLOW
EXTERNAL INPUT
(P1.2/ECI)
DECODE
00
01
10
11
SU01256
OSC/2 (6 CLOCK MODE)
OR
OSC/4 (12 CLOCK MODE)
Figure 15. PCA Timer/Counter
MODULE 0
MODULE 1
MODULE 2
MODULE 3
MODULE 4
PCA TIMER/COUNTER
CF
CR
CCF4
CCF3
CCF2
CCF1
CCF0
––
CMOD.0
ECF
CCAPMn.0
ECCFn
TO
INTERRUPT
PRIORITY
DECODER
CCON
(C0H)
IE.6
EC
IE.7
EA
SU01097
Figure 16. PCA Interrupt System



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