P87C51FB-4B,557 NXP Semiconductors, P87C51FB-4B,557 Datasheet - Page 26
P87C51FB-4B,557
Manufacturer Part Number
P87C51FB-4B,557
Description
Manufacturer
NXP Semiconductors
Datasheet
1.P87C51FB-4B.pdf
(56 pages)
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Part Number:
P87C51FB-4B,557
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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Philips Semiconductors
(8XC51FX and 8XC51RX+ ONLY)
2000 Aug 07
80C51 8-bit microcontroller family
8K–64K/256–1K OTP/ROM/ROMless, low voltage (2.7V–5.5V),
low power, high speed (33MHz)
EXTERNAL INPUT
IDLE
(P1.2/ECI)
OVERFLOW
PCA TIMER/COUNTER
TIMER 0
OSC/12
OSC/4
MODULE 0
MODULE 1
MODULE 2
MODULE 3
MODULE 4
CMOD.0
ECF
CIDL
CF
00
01
10
11
Figure 16. PCA Interrupt System
WDTE
CCAPMn.0
Figure 15. PCA Timer/Counter
CF
CR
DECODE
CR
––
––
ECCFn
26
CCF4
––
––
CCF4
CCF3
––
16–BIT UP COUNTER
CH
CCF3
8XC51RA+/RB+/RC+/RD+/80C51RA+
CCF2
CPS1
CCF2
CCF1
CPS0
IE.6
CL
EC
8XC51FA/FB/FC/80C51FA
OVERFLOW
CCF1
CCF0
ECF
IE.7
EA
MODULES
TO PCA
CMOD
CCON
(D9H)
(D8H)
CCF0
Product specification
TO
INTERRUPT
PRIORITY
DECODER
INTERRUPT
CCON
(D8H)
SU00034
8XC54/58
SU00033
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