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P89C51/89C52/89C54/89C58 FLASH ISP (IAP) P89C51Rx2 89C66x 80C51 CMOS 8 80C51
FLASH
MTP 89C51 ROM/EPROM RAM() (ISP) (IAP) PWM /(PCA) MTP= 4K 128 UART 89C52/54/58 8K/16K/32K 256 UART ISP/IAP 89C51Rx2 16K-32K 512-1K UART 89C66x 16K-64K 512-8K UART+I C
2
ISP=() IAP= FLASH
P89C5xUBxx/ P89C5xUFxx P89C5xBxx/ P89C5xFxx U P89C5xxxx ( U) PQFP (P89C5xUxBB) PQFP LQFP (P89C5xUxBB) PLCC=AA PQFP=BB PDIP=PN FLASH / 100 PLCC=A LQFP=BD PDIP=P 10,000 / ICC(MAX)= ICC(MAX)= (0.55*FREQ.+8.0)mA ICC(MAX)= (0.3*FREQ.+2.0)mA 1
P89C5xUxxx
(0.9*FREQ.+20)mA ICC(MAX)= (0.37*FREQ.+1.0)mA
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80C51 FLASH 33MHz RAM 64K 4 6 4 8 I/O UART DPTR EMI ( ALE) 3 16
4K P89C51BA P89C51BP P89C51BN P89C51BBD 8K P89C52BA P89C52BP P89C52BN P89C52BBD 16K P89C54BA P89C54BP P89C54BN P89C54BBD 32K P89C58BA P89C58BP DIP40 P89C58BN P89C58BBD LQFP44 0 70 5V 0 33 0 70 5V 0 33 PLCC44 0 70 5V 0 33 V (MHz)
(P89C5x) P89C51 P89C52 P89C54 P89C58 (B) B=0 F= 40 70 +85 BD=LQFP A=PLCC P=PDIP
2
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PLCC CLCC
3
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LQFP
Vss Vcc P0.0-0.7 DIP 20 40 39-32 LCC 22 44 43-36 QFP 16 38 37-30 I I I/O P0
P0 1 P0
1 P1.0-1.7 1-8 2-9 40-44 1-3 I/O P1 P1 I/O P1 1 P1 P1 2 / 2 /( ) 2 3 T2EX(P1.1) / 2 //
P1
1 2
( DC ) T2(P1.0)
4
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P2.0-2.7
I/O
P2 I/O P2 1 P2 8 (MOV
P2
( DC )
16 (MOVX @DPTR) 1 P3.0-3.7 10-17 11, 13-19 5, 7-13 I/O P3 P3 I/O P3 P3 1 @Ri),P2 P2
P3
( DC ) 89C51/89C52/89C54/89C58 P3 10 11 12 13 14 15 16 17 RST 9 11 13 14 15 16 17 18 19 10 5 7 8 9 10 11 12 13 4 I RxD(p3.0) TxD(P3.1) INT0(P3.2) INT1(P3.3) T0(P3.4) T1(P3.5) WR(P3.6) RD(P3.7) 0 0 1
2
Vss Vcc ALE 30 33 27 O ALE 1/6 ALE ALE SFR auxlilary.0 ALE MOVX PSEN 29 32 27 O PSEN EA/Vpp 31 35 29 I
PSEN
PSEN EA 1FFFH(8k RST 7FFFH(32k )
/ EA ) 0FFFH(4k ) 3FFFH(16k )
EA FLASH 12V (Vpp) XTAL1 XTAL2 19 18 21 20 15 14 I O 1 2
: "latch-up", Vpp Vcc+0.5, Vss- 0.5
5
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ACC* AUXR# AUXR1# B* DPTR DPH DPL 1 B 83H 82H AF IE* A8H EA BF IP* B8H B7 IPH# B7H 87 P0* P0 80H AD7 97 P1* P1 90H A7 P2* P2 A0H AD15 B7 P3* P3 B0H RD A6 AD14 B6 WR A5 AD13 B5 T1 86 AD6 96 B6 BE AE AD ET2 BD PT2H B5 PT2H 85 AD5 95
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P89C51/89C52/89C54/89C58
E0H 8EH A2H F0H F7 F6 F5 F4 GF2 F3 0 F2 F1 E7 E6 E5 E4 E3 E2 E1 E0 AO DPS F0 00H xxxxxxx0B1 02H1 00H
00H 00H AC ES BC PSH B4 PSH 84 AD4 94 AB ET1 BBB PT1H B3 PT1H 83 AD3 93 AA EX1 BA PX1H B2 PX1H 82 AD2 92 A9 ET0 B9 PT0H B1 PT0H 81 AD1 91 T2EX A4 AD12 B4 T0 A3 AD11 B3 INT1 A2 AD10 B2 INT0 A1 AD9 B1 TxD A8 EX0 B8 PX0H B0 PX0H 80 AD0 90 T2 A0 AD8 B0 RxD FFH FFH FFH FFH xx000000B xx000000B 0x000000B
PCON#1
87H
SMOD1 D7
SMOD0 D6 AC D5 F0
POF2 D4 RS1
GF1 D3 RS0
GF0 D2 OV
PD D1
IDL D0 P
00xxx000B
PSW*
D0H CBH CAH A9H B9H 99H
CY
000000x0B 00H 00H 00H 00H xxxxxxxxB
RACAP2H# 2 RACAP2L# 2 SADDR# SADEN# SBUF
9F SCON* SP 98H 81H 8F TCON* 88H TF1 8F T2CON* T2MOD# TH0 TH1 TH2# 2 2 0 1 2 C8H C9H 8CH 8DH CDH TF2 SM0/FE
9E SM1
9D SM2
9C REN
9B TB8
9A RB8
99 TI
98 RI 00H 07H
8E TR1 8E EXF2
8D TF0 8D RCLK
8C TR0 8C TCLK
8B IE1 8B EXEN2
8A IT1 8A TR2
89 IE0 89 C/T2 T2OE
88 IT0 88 CP/RL2 DCEN 00H xxxxxx00B 00H 00H 00H 00H
6
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TL0 TL1 TL2# TMOD
0 1 2
8AH 8BH CCH 89H GATE C/T M1 M0 GATE C/T M1 M0
00H 00H 00H 00H
* SFR # SFR 80C51 SFR 1 2
FLASH EPROM
P89C51/52/54/58 10000 FLASH FLASH EPROM 10000 / 10 EA=0 64K
XTAL1 XTAL2 XTAL2 XTAL1
RST 24 RST 3 RST EA
Vcc RST VIH1(min.) I/O 1 2
0MHz() RAM SFR 2 CPU CPU RAM SFR
7
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( 2)
2.0 RAM SFR Vcc
SFR RAM SFR RAM Vcc ( 10ms ) INT0 INT1 RETI 2 ALE 1 1 0 0 PSEN 1 1 0 0 0 1 2 3
2 RAM I/O Idle Idle I/O ONCE ONCE() 1 2 PSEN RST ALE P0 I/O CPU ALE PSEN ALE ONCE
TM
ONCE
P1.0 50% P1.0 I/O 1 2 / 2 16MHz 50% 61Hz~4MHz
/ 2 ,C/T2(T2CON.1) T2MOD T20E 2 TR2(T2CON.2) 2 4 RCAP2H,RCAP2L 65536 RCAP2H,RCAP2L RCAP2H RCAP2L 16
2 2
8
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2
2 2 16 / T2CON C/T2 2 T2CON 3 T2CON EXEN2 EXEN2 0 T2CON C/T2 TF2 IE 2 T2EX T2CON EXF2 EXEN2 1 2 16 2

T2EX 1 0 2 TL2 TH2 RCAP2L RCAP2H EXF2 TF2 2 2 TF2 EXF2 2 1/12 / 2 C/T2 / / DCEN 1 2 T2EX EXEN2 RCAP2L RCAP2H EXF2
TL2 TH2 T2EX T2EX
16 2 EXEN2
DCEN DCEN T2MOD 3 DCEN 0 4 DCEN 0 2 0 16 2 EXEN2 2 5 DCEN 1
2 0FFFFH TF2
RCAP2L RCAP2H
1 16 T2EX 1 0 TF2 EXF2 1 2
T2EX T2EX
1 2 0FFFFH TF2 2 RCAP2L RCAP2H 16 TL2 TH2
T2EX 2 TL2 TH2 RCAP2L RCAP2H 2 TF2 EXF2 0FFFFH TL2 TH2 EXF2 17 2 / EXF2
9
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TF2 TF2 EXF2 T2CON.7 T2CON.6 EXF2 RCLK 2 2 TCLK 1 TF2 2 EXEN2 2 DCEN RCLK TCLK EXEN2 T2CON.5 T2CON.4 T2CON.3 1 TCLK EXEN2 TR2 C/T2
CP/RL2
RCLK
1 T2EX EXF2 1 CPU /
EXF2 2
EXF2
EXF2 2 1 1 1 EXEN2 0 T2EX 2 2 1 RCLK TCLK 0 0
RCLK 3 3 TCLK
2 2 T2EX
TR2 C/T2
T2CON.2 T2CON.1
2 / 1 / 0 1 2 OSC/12 1 T2EX EXEN2
CP/RL2
T2CON.0
/ EXEN2 RCLK 1. 1 TCLK
1 2 T2EX 1 T2CON
/ 2
3 2 RCLK+TCLK 0 0 1 X CP/RL2 0 1 X X TR2 1 1 1 0 16 16
2
2
10
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T2MOD =0C9H
=XXXX XX00B
T2OE 7 6 T2OE DCEN * * 2 2 / 8051 0 5 4 3 2 1
DCEN 0
1

1
3 2 T2MOD
4
2 DCEN=0
5
2
DCEN=1
11
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6 4 2 375K 9.6K 2.8K 2.4K 1.2K 300 110 300 110
2
12MHz 12MHz 12MHz 12MHz 12MHz 12MHz 12MHz 6MHz 6MHz
2 RCAP2H FF FF FF FF FE FB F2 FD F9 RCAP2L FF D9 B2 64 C8 1E AF 8F 57
T2CON 4 TCLK RCLK 1 2 TCLK=0 1 TCLK=1 2 RCLK 1
2
6 2 TH2 2 RCAP2H RCAP2L 16 RCAP2H RCAP2LR 1 3 2 2 16
1 3 =
C/T2*=0 2
12
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2 1 3 = 1/2 [32 [65536
1/12
2
(RCAP2H,RCAP2L)]] 16 TCLK=1
RCAP2H,RCAP2L)=RCAP2H RCAP2L 2
6
T2CON RCLK T2 TH2 TL2
2 TH2 TF2 2 2 EXEN2 T2 T2EX 1 0 EXF2
RCAP2H RCAP2L
2
T2EX
, TH2 TL2 0sc/2 T2 2 1 TH2 TH1 RCAP2 2 RCAP TR2 4 2 2 = T2 2 16 fosc = fosc RCAP2H,RCAP2L=65536-(fosc/32*) / 2 T2CON TR2 TR2 5 6 T2 5 T2 16 16 T2CON 1 00H 01H 34H 24H 14H 08H 09H 36H 26H 16H 2 [32 [65536 (RCAP2H,RCAP2L)]] 2 ,
6
T2 TMOD 1 02H 03H 0AH 0BH 2
16
13
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2./ T2EX(P1.1)
UART
UART UART 80C51 SMOD0 SCON FE FE SM0 SCON.7 PCON.6 FE,SMOD0 0 SCON.7 SM0 UART 9 UART 2 3 SCON SM2 9 1 8 UART SM2 8 RI 8 0 SM2 SADDR SADEN SADEN SADDR 0 SADDR=1100 0000 SADEN=1111 1101 =1100 00X0 1 SADEN SADDR SCON.7 SMOD0 1 SCON.7 8 SCON.7
RI 9 1
SADDR=1100 0000 SADEN=1111 1110 =1100 000X
SADDR 0 0 1 1 0
SADEN
0 0 0 1
1
1 0 0 1 1 0
0 1100 0010
1 1100 0001 2 0
1100 0000
SADDR=1100 0000 SADEN=1111 1001 =1100 0XX0
1
SADDR=1110 0000 SADEN=1111 1010 =1100 0X0X
2
SADDR=1110 0000 SADEN=1111 1100 =1110 00XX
14
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3 0 0=0
1110 0110
1=0 1110 0101 2 2 0 1110 0011 2 1 2 1110 0100 0 1 2 SADDR SADEN 1 FFH SADDR SADEN 00H
UART
SCON Address=98H SM0/FE FE SM0 SM1 7 SMOD0=0/1 FE SMOD 0 1 SM0 0 0 1 1 SM2 9 REN TB8 RB8 TI RI
*
00000000B
SM1 6
*
SM2 5
REN 4
TB8 3
RB8 2
TI 1
RI 0
SM0 8 UART 9 UART 9 UART
SMOD
**
SM1 0 1 0 1 RB8
Mode 0 1 2 3 1
fosc/12 fosc/64 fosc/32
2 3 SM2=1
RI 1 SM2 0 1
SM2=1, RI 0 , 2 3 9 2 3 9 0
0 8 SMOD0 PCON.6 fosc=
**
0 8
7
SCON
15
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8
UART
9
UART
89C51/89C52/89C54/89C58 6 4 3 12 IPH IPH IP IPH.x 0 0 1 1 IP.x 0 1 0 1 0 () 1 2 3 () 4 IE IP IPH( 10 11 12)
IPH 4 IPH SFR B7H IPH
16
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IE0 TP0 IE1 TF1 R1,T1 TF2,EXF2
N(L) Y(T) Y N(L) Y(T) Y N N
1 2
03H 0BH 13H 1BH 23H 2BH
IE(0A8H) EA
7
6
5 ET2
4 ES
3 ET1
2 EX1
1 ET0
0 EX0
=1 =0 IE.7 IE.6 IE.5 IE.4 IE.3 IE.2 IE.1 IE.0 ET2 ES ET1 EX1 ET0 EX0 EA
EA=0 EA=1

2 1 1 0 0 10 IE 5 PT2 =1 =0 4 PS 3 PT1 2 PX1 1 PT0 0 PX0
IP(0B8H)
7
6

IP.7 IP.6 IP.5 IP.4 IP.3 IP.2 IP.1 IP.0

PT2 PS PT1 PX1 PT0 PX0
2 1 1 0 0 11 IP
17
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38730977 4 PSH 3
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PT1H
PT0H

2 1 1 0 0 12 IPH
4 80C51 2
EMI
AO AUXR 7 8EH 6 5 4 3 2 1 0 AUXR.0 ALE
AUXR.0
AO
ALE
DPTR
DPTR AUXR1 7 A2H 6 5 4 3 GF2 : DPS AUXR1 0, DPTR0 DPTR1 DPTR0 DPTR1 DPS 0 1 2 0 1 0 DPS A2H xxxx00x0B 13 2 16 DPTR DPS 2
AUXR1#
DPTR0 DPTR1 DSP GF2 AURX 2 0 DSP INC AUXR1 GF2
18
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13 DPTR DPTR AUXR 1/0 INC MOV MOV MOVX MOVX JMP DPTR DPTR,#data16 A,@A+DPTR A,@DPTR @DPTR A 1 16 DPTR DPTR ACC RAM RAM 16 ACC 16 ACC DPTR 6
@A+DPTR
DPTR
SFRs
EA/Vpp Vss Vss I/O IOL 0 +70 40 65 0 +150 +13.0 +6.5 V V mA W +85
0.5 15 1.5
AC
Tamb=0 +70 40 1/tCLCL 0 +85 33 MHz
19
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DC
Tamb=0 +70 40 +85 ;5V 10%;Vss=0V VIL VIH VIH1 VOL (P0,1,2,3,EA) ,XTAL1,RST ,P1,2,3
8

1
0.2Vcc-0.1 Vcc+0.5 Vcc+0.5 0.4 V V V V
4.5V0.5 0.2Vcc+0.9 0.7Vcc
Vcc=4.5V IOL=1.6mA
2 7.,8
VOL1
,P0 ,ALE,PSEN
3
Vcc=4.5V IOL=3.2mA
2
0.4
V
VOH
,P1,2,3
9
Vcc=4.5V IOH= 30uA
3
Vcc-0.7
V
VOH1
ALE ,PSEN 0 ,P1,2,3
Vcc=4.5V IOH= 3.2mA
Vcc-0.7
V
IIL ITL
VIN=0.4V
6
1
75 650
V V
1 0 ,P1,2,3 ,P0 ( 21):
VIN=2.0V 4
ILI ICC
0.4510
uA
,, ( 25 ) RRST CIO 1) 2)
10
100 125 225 15
uA uA k pF
EA 5V 3 ALE
P0 P2 1 >100pF

0 2 1 0 0 2 ALE 0.8V STROBE ALE IOL 3) 4) 0 2 ALE PSEN VCC--0.7V 1 5) 21 Icc
2 3 1 0 2v
22 25 Icc T 0 0 ICC(MAX)=(0.56 ICC(MAX)=(0.30 ~+70
FREQ.+8.0)mA FREQ.+2.0)mA 80 pF
6) 7) 8)
ALE PSEN 100pF Io IOL 8 IOL IOL IOL
i. ii. iii. iv.
15mA 26 mA 71mA
85
VOL 20
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9)
ALE ALE ALE 25pF
10) 25 pF 15pF EA
AC
AC 5 t A C D H I L ALE Z P PSEN Q R RD t W WR X V
21
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tAVLL= ALE
tllpl= ALE PSEN
14
15
16
22
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17
18
19
AC /
20
21
Icc ()
23
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22
Icc (;)
23
Icc (; )
24
Icc
25
Icc (; Vcc=2V~5.5V)
ROM OTP 8 LB1 LB2 LB3
FLASH
FLASH 8
89C51/89C52/89C54/89C58 3
LB3 LB1
3
MOVC
24
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25
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26
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