,
STC 89
1280 8/16/32/64k IAP
SRAM
ISP
P0
8051 8 P1
E2PROM STC IAP + P2
Data Flash
P4.0 P4.3 P3
MAX810 I/O P4
A/D
UART A/D
3
EMI P I I E2P
STC 89 4 S A ROM
4K 512
STC 89C51 RC 8K 512 PP
STC 89C52 RC 15K 512
STC 89C53 RC 16K 1280 2K
STC 89C54 RD+ 20K 1280 2K
STC 89C55 RD+ 32K 1280
STC 89C58 RD+ 64K 1280 16K
STC 89C516 RD+ 4K 512 16K
STC 89LE51 RC 8K 512 16K
STC 89LE52 RC 15K 512
STC 89LE53 RC 16K 1280 2K
STC 89LE54 RD+ 32K 1280 2K
STC 89LE58 RD+ 64K 1280
STC 89LE516RD+ 64K 512 16K
STC 89LE516AD 16K
STC
0.1uF STC3232,STC232,MAX232,SP232
10uF
1 C1+ Vcc 16 Vcc
2 V+ GND 15 Gnd
3 C1- T1OUT 14 PC_RxD (COM Pin2)
4 C2+
0.1uF 5 C2- R1IN 13 PC_TxD (COM Pin3)
0.1uF 6 V- R1OUT 12
7 T2OUT MCU_RxD (P3.0)
8 R2IN T1IN 11
T2IN 10 MCU_TxD (P3.1) P3.0 VCC Vcc
R2OUT 9 P3.1 Vcc
XTAL2 89C52RC
89C58RD+
89LE52RC
XTAL1 89LE516RD+
GND RESET
,
, 20-lead, 0.300" Wide, Plastic Dual Inline , 20-lead, 0.300" Wide, Plastic Gull WIng Small
Package (PDIP-20) Outline (SOIC-20 / SOP-20)
Dimensions in Inches and (Millimeters) Dimensions in Inches and (Millimeters)
JEDEC STANDARD MS-001 AD
��
Vcc
0.1uF 1 C1+ Vcc 16 Vcc
0.1uF 2 V+ GND 15 Gnd
3 C1- T1OUT 14 PC_RxD (COM Pin2)
4 C2+ R1IN 13 PC_TxD (COM Pin3)
5 C2-
R1OUT 12
6 V- T1IN 11
0.1uF T2IN 10
7 T2OUT
8 R2IN R2OUT 9
Vcc
Vcc
0.1uF 1 C1+ Vcc 16 Vcc
0.1uF 2 V+ GND 15 Gnd
3 C1- T1OUT 14 PC_RxD (COM Pin2)
4 C2+ R1IN 13 PC_TxD (COM Pin3)
5 C2-
R1OUT 12
6 V- T1IN 11
0.1uF T2IN 10
7 T2OUT
8 R2IN R2OUT 9
Vcc
12 / 1/
12
6
6
6
6
6
6
4
8
6
6
8
4
8
4
8
6
6
8
8
8
8
6
8
4
3
3
3
12 / 1 /
6
4
4
6
6
4
4
6
6
4
4
6
6
4
3
3
6
4
3
3
24
12
9.6
3
12 / 1 /
6
4
4
6
3
6
6
4
4
6
3
6
6
4
4
6
3
6
12
6
12
12
12
12
12
L 12 / 1 /
L
4
0 4
0 6
1 6
1 8
6
8
8
8
8
4.8
6
6
4.8
6
4.8
12
12 / 1 /
12
3
12
3
12
3
8
8
8
8
4
8
8
8
6
6
4.8
I/ O
( 8 0 5 1 I/ O ,
20mA , 2 3 0 �A ,
250uA 160uA
20mA
(Open Drain)
I/ O
( 8051 I/O ,
20mA , 2 3 0 �A ,
250uA 160uA
20mA
(Open Drain)
I/O P1.x A/D
8051 I/O ,
20mA , 230�A ,
250uA 160uA
20mA
I/O A/D
(Open Drain) I/O A/D
I/ O
( 8051 I/O ,
20mA , 2 3 0 �A ,
250uA 160uA
20mA
(Open Drain)
= (12 x Pre-scale x 32768) / 11059200 = Pre-scale x 393216 / 11059200
}
}
I/ O P1.x A/D
8051 I/O ,
20mA ,
2 3 0 �A
(Open Drain)
20mA
I/O A/D
I/O A/D
1
/ ) = 1024 x Vin / Vcc
Vi n Vcc
= 256 x Vin / Vcc
CMOD
CCON
0 0 0 0
Write to CCAPnL Write to CCAPnH
0 1
0 0 1 0 0
0 1
0 0 1 1 0
1 0 0 0 0 1 0
Vcc
0.1uF 1 C1+ Vcc 16 Vcc
0.1uF 2 V+ GND 15 Gnd
3 C1- T1OUT 14 PC_RxD (COM Pin2)
4 C2+ R1IN 13 PC_TxD (COM Pin3)
5 C2-
R1OUT 12
6 V- T1IN 11
0.1uF T2IN 10
7 T2OUT
8 R2IN R2OUT 9
Vcc
SPI SPCTL � 85h
SPI SPSTAT � 84h
SPI SPSTAT � 84h
SPI SPDAT � 86h
SPI
, 20-lead, 0.300" Wide, Plastic Dual Inline , 20-lead, 0.300" Wide, Plastic Gull WIng Small
Package (PDIP-20) Outline (SOIC-20 / SOP-20)
Dimensions in Inches and (Millimeters) Dimensions in Inches and (Millimeters)
JEDEC STANDARD MS-001 AD
��
STC810 STC6344 VCC
RESET
VCC RESET
Interrupt
89C51RC 1 GND
89C54RD+
89C58RD+ 100K GND MR
89LE516AD
Vcc VCC 3
RESET
2 RESET <1.25V PFO
PFI
PFO=0
STC6345 STC813L VCC
STC89C51RC
VCC RESET VCC STC89C52RC
RESET STC89C53RC
10K GND RESET MR WDO STC89C54RD+
Interrupt VCC RESET STC89C58RD+
<1.25V RESET 100K GND STC89C516RD+
uC / DSP PFI WDI RESET
PFI PFO <1.25V PFO
PFO=0 I/O
PFO=0
Interrupt
STC809 STC6342 VCC
RESET
VCC RESET uC / DSP
Interrupt
uC / DSP 1 GND
RESET
10K GND MR
Vcc VCC 3
2 RESET <1.25V
PFI PFO
PFO=0
STC706S VCC STC708 VCC
uC / DSP RESET
MR RESET
RESET Interrupt
MR WDO I/O VCC RESET RESET
VCC RESET Interrupt uC / DSP
GND 100K GND NC
PFI WDI
100K PFO <1.25V
PFO=0
<1.25V PFI PFO
PFO=0
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