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PDF P87CL52X2BBD Data sheet ( Hoja de datos )
| Número de pieza | P87CL52X2BBD | |
| Descripción | 80C51 8-bit microcontroller family | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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INTEGRATED CIRCUITS
P87CL52X2/54X2
80C51 8-bit microcontroller family
8K/16K OTP 256 bytes RAM ROMless low voltage
(1.8 V to 3.3 V), low power, high speed (33 MHz)
Product data
Supersedes data of 2003 Apr 30
2003 May 14
Philips
Semiconductors
1 page  
Philips Semiconductors
80C51 8-bit microcontroller family
8K/16K OTP 256 bytes RAM ROMless low voltage
(1.8 V to 3.3 V), low power, high speed (33 MHz)
Product data
P87CL52X2/54X2
LOGIC SYMBOL
VCC
XTAL1
VSS
ADDRESS AND
DATA BUS
XTAL2
RST
EA/VPP
PSEN
ALE/PROG
RxD
TxD
INT01
INT1
T0
T11
WR
RD
T2
T2EX
ADDRESS BUS
SU01724
NOTE:
1. INT0/P3.2 and T1/P3.5 are absent in the TSSOP38 package.
LOW PROFILE QUAD FLAT PACK
PIN FUNCTIONS
44 34
1 33
LQFP
11 23
Pin Function
1 P1.5
2 P1.6
3 P1.7
4 RST
5 P3.0/RxD
6 NIC*
7 P3.1/TxD
8 P3.2/INT0
9 P3.3/INT1
10 P3.4/T0
11 P3.5/T1
12 P3.6/WR
13 P3.7/RD
14 XTAL2
15 XTAL1
12 22
Pin Function
16 VSS
17 NIC*
18 P2.0/A8
19 P2.1/A9
20 P2.2/A10
21 P2.3/A11
22 P2.4/A12
23 P2.5/A13
24 P2.6/A14
25 P2.7/A15
26 PSEN
27 ALE
28 NIC*
29 EA/VPP
30 P0.7/AD7
* NO INTERNAL CONNECTION
Pin Function
31 P0.6/AD6
32 P0.5/AD5
33 P0.4/AD4
34 P0.3/AD3
35 P0.2/AD2
36 P0.1/AD1
37 P0.0/AD0
38 VCC
39 NIC*
40 P1.0/T2
41 P1.1/T2EX
42 P1.2
43 P1.3
44 P1.4
SU01487
PLASTIC THIN SHRINK SMALL OUTLINE PACK
PIN FUNCTIONS
1 38
TSSOP
19
Pin Function
1 P3.0/RxD
2 P3.1/TxD
3 P3.3/INT1
4 P3.4/T0
5 P3.6/WR
6 P3.7/RD
7 XTAL2
8 XTAL1
9 VSS
10 P2.0/A8
11 P2.1/A9
12 P2.2/A10
13 P2.3/A11
Pin Function
14 P2.4/A12
15 P2.5/A13
16 P2.6/A14
17 P2.7/A15
18 PSEN
19 ALE/PROG
20 EA/VPP
21 P0.7/AD7
22 P0.6/AD6
23 P0.5/AD5
24 P0.4/AD4
25 P0.3/AD3
26 P0.2/AD2
20
Pin Function
27 P0.1/AD1
28 P0.0/AD0
29 VDD
30 P1.0/T2
31 P1.1/T2EX
32 P1.2
33 P1.3
34 P1.4
35 P1.5
36 P1.6
37 P1.7
38 RST
su01725
2003 May 14
5
5 Page 
Philips Semiconductors
80C51 8-bit microcontroller family
8K/16K OTP 256 bytes RAM ROMless low voltage
(1.8 V to 3.3 V), low power, high speed (33 MHz)
Product data
P87CL52X2/54X2
TCON
Address = 88H
Bit Addressable
Reset Value = 00H
76543210
TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0
BIT
TCON.7
TCON.6
TCON.5
TCON.4
TCON.3
TCON.2
TCON.1
TCON.0
SYMBOL
TF1
TR1
TF0
TR0
IE1
IT1
IE0
IT0
FUNCTION
Timer 1 overflow flag. Set by hardware on Timer/Counter overflow.
Cleared by hardware when processor vectors to interrupt routine, or clearing the bit in software.
Timer 1 Run control bit. Set/cleared by software to turn Timer/Counter on/off.
Timer 0 overflow flag. Set by hardware on Timer/Counter overflow.
Cleared by hardware when processor vectors to interrupt routine, or by clearing the bit in software.
Timer 0 Run control bit. Set/cleared by software to turn Timer/Counter on/off.
Interrupt 1 Edge flag. Set by hardware when external interrupt edge detected.
Cleared when interrupt processed.
Interrupt 1 type control bit. Set/cleared by software to specify falling edge/low level triggered
external interrupts.
Interrupt 0 Edge flag. Set by hardware when external interrupt edge detected.
Cleared when interrupt processed.
Interrupt 0 Type control bit. Set/cleared by software to specify falling edge/low level
triggered external interrupts.
SU01516
Figure 3. Timer/Counter 0/1 Control (TCON) Register
OSC
÷ d*
Tn Pin
C/T = 0
C/T = 1
Timer n
Gate bit
TRn
INTn Pin
*d = 6 in 6-clock mode; d = 12 in 12-clock mode.
Control
TLn
(8 Bits)
Reload
THn
(8 Bits)
Figure 4. Timer/Counter 0/1 Mode 2: 8-Bit Auto-Reload
TFn Interrupt
SU01619
2003 May 14
11
11 Page | ||
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