,

, STC11F01-35C-SOP16 RMB 1.99 STC10F04-35C-LQFP44 R MB 2. 99

, STC12C5A08AD-35C-LQFP44,RMB 7.5

, STC12C5201AD-SOP16,RMB 2.49 STC12C5202AD-LQFP32,RMB 3.99

0.1uF 0.1uF 0.1uF STC 89 E 2 PROM Data Flash MAX810 1280 IAP SRAM STC UART 3 STC 89LE54 RD+ STC 89LE58 RD+ STC3232,STC232,MAX232,SP232 1 C1+ Vcc 16 2 V+ GND 15 3 C1- T1OUT 14 4 C2+ R1IN 13 5 C2- R1OUT 12 6 V- T1IN 11 7 T2OUT T2IN 10 8 R2IN R2OUT 9 8/16/32/64k 8051 10uF + Vcc Gnd PC_RxD (COM Pin2) PC_TxD (COM Pin3) MCU_RxD (P3.0) MCU_TxD (P3.1) A / D XTAL2 XTAL1 P3.0 IAP P I 4 S EMI P VCC P3.1 89C52RC 89C58RD+ 89LE52RC 89LE516RD+ GND RESET ISP Vcc + Vcc 8 I/O P4 A/D I E 2 P A ROM P, + P4.0P4.3 STC 89C51 RC 4K 512 2K+ STC 89C52 RC 8K 512 2K + STC 89C53 RC 15K 512 STC 89C54 RD+ 16K 1280 16K+ STC 89C58 RD+ 32K 1280 16K+ STC 89LE51 RC 4K 512 2K+ STC 89LE52 RC 8K 512 2K+ STC 89LE53 RC 15K 512 16K 1280 16K+ 32K 1280 16K+ STC 89LE516RD+ 64K 1280 STC 89C55 RD+ 20K 1280 16K+ STC 89C516 RC 64K 1280 P0 P1 P2 P3

STC 90C51 0.1uF STC 90C51 RC STC 90C52 RC STC 90LE54 RD+ 0.1uF E 2 PROM Data Flash 0.1uF 4K 512 2K+ 8K 512 2K + STC 90C53 RC 15K 512 STC 90C54 STC 90C55 STC 90C58 RD+ RD+ 16K 1280 16K+ RD+ 20K 1280 16K+ 32K 1280 16K+ STC 90C516 RC 64K 1280 STC 90LE51 RC 4K 512 2K+ STC 90LE58 RD+ MAX810 1280 IAP SRAM STC UART 3 STC3232,STC232,MAX232,SP232 1 C1+ Vcc 16 2 V+ GND 15 3 C1- T1OUT 14 4 C2+ R1IN 13 5 C2- R1OUT 12 6 V- T1IN 11 7 T2OUT T2IN 10 8 R2IN R2OUT 9 8/16/32/64k IAP ISP P0 8 P1 + P2 8051 16K 1280 16K+ 32K 1280 16K+ 10uF Vcc + Gnd PC_RxD (COM Pin2) PC_TxD (COM Pin3) MCU_RxD (P3.0) MCU_TxD (P3.1) A / D XTAL2 XTAL1 P3.0 P I 4 S EMI P STC 90LE52 RC 8K 512 2K+ STC 90LE53 RC STC 90LE516RD+ 15K 512 64K 1280 VCC P3.1 89C52RC 89C58RD+ 89LE52RC 89LE516RD+ GND RESET Vcc + Vcc P4.0P4.3 I/O P4 A/D I E 2 P A ROM P, P3

, 20-lead, 0.300" Wide, Plastic Dual Inline Package (PDIP-20) Dimensions in Inches and (Millimeters) JEDEC STANDARD MS-001 AD, 20-lead, 0.300" Wide, Plastic Gull WIng Small Outline (SOIC-20 / SOP-20) Dimensions in Inches and (Millimeters)

0 /8

0 3. 5 7 0 1 1 1 2 1 3 1 1 1 2 1 3

0.1uF 0.1uF + Vcc 0.1uF 1 2 3 4 5 6 7 8 C1+ VCC V+ C2+ C1- C2- V- T2OUT R2IN GND T1OUT R1IN R1OUT T1IN T2IN R2OUT 16 15 14 13 12 11 10 9 + Vcc Gnd PC_RxD (COM Pin2) PC_TxD (COM Pin3) + Vcc

0.1uF 0.1uF Vcc 0.1uF 1 C1+ Vcc 16 Vcc + 2 V+ GND 15 3 C1- T1OUT 14 4 C2+ R1IN 13 5 C2- R1OUT 12 6 V- T1IN 11 7 T2OUT T2IN 10 8 R2IN R2OUT 9 + Gnd PC_RxD (COM Pin2) PC_TxD (COM Pin3) + Vcc

0.1uF 0.1uF Vcc 0.1uF 1 2 3 4 5 6 7 C1+ VCC V+ C2+ C1- C2- V- T2OUT GND T1OUT R1IN R1OUT T1IN T2IN 16 15 14 13 12 11 10 + Vcc Gnd PC_RxD (COM Pin2) PC_TxD (COM Pin3) + 8 R2IN R2OUT 9 Vcc + VCC

12 / 1 / 12 6 6 6 6 6 6 4 8 6 6 8 4 8 4 8 6 6 6 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 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

1 / 4 L 4 6 6 8 L 6 8 8 8 8 4.8 6 6 4.8 6 4.8 12 1 / 0 12 0 3 1 12 1 3 12 3 8 8 8 8 4 8 8 8 6 6 4.8

I/O ( 8051 I/O, 20mA, 230µA, 250uA150uA 20mA, (Open Drain) I/O ( 8051 I/O, 20mA, 230µA, 250uA150uA 20mA (Open Drain) I/O P1.x A/D 8051 I/O, 20mA, 230µA, 250uA150uA 20mA I/O A/D (Open Drain) I/O A/D I/O ( 8051 I/O, 20mA, 230µA, 250uA150uA 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, 230µA 20mA I/O A/D (Open Drain) I/O A/D 1

/ ) = 1024 x Vin / Vcc Vin 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

0.1uF Vcc PC_RxD (COM Pin2) PC_TxD (COM Pin3) Gnd Vcc Vcc 0.1uF 0.1uF 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Vcc Gnd T1OUT R1IN R1OUT T1IN T2IN R2OUT C1+ V+ C1- C2+ C2+ V- T2OUT R2IN + + +

SPI SPCTL 85h

SPI SPSTAT 84h SPI SPSTAT 84h SPI SPDAT 86h

SPI

STC810 89C51RC 89C54RD+ 89C58RD+ 89LE516AD Vcc 1 GND VCC 3 RESET 2 RESET STC708 VCC MR RESET RESET VCC RESET 100K GND NC <1.25V PFI PFO Interrupt PFO=0 RESET VCC STC89C51RC STC813L STC89C52RC STC89C53RC STC89C54RD+ MR WDO STC89C58RD+ STC89C516RD+ VCC RESET RESET 100K GND WDI I/O <1.25V PFI PFO Interrupt PFO=0 uc / DSP STC809 uc / DSP 1 GND Vcc VCC 3 RESET 2 RESET STC706S VCC uc / DSP MR WDO VCC RESET RESET 100K GND WDI I/O <1.25V PFI PFO Interrupt PFO=0 10K STC6342 VCC VCC RESET RESET GND MR uc / DSP <1.25V PFI PFO Interrupt PFO=0