Interm pw 9242n timer
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Page 1
Micom Data 1 Specifications 5 Electrical Parts List 6. 7 Top and Bottom View of P.C. Board 8 Wiring Diagram 11 Block Diagram 12 Schematic Diagram 13, 14 Exploded View of Cabinet & Chassis / Mechanical Parts List 15, 16 Assy Drawing 17, 18 CONTENTS
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MICOM DATA 1 AT89C52 8-BIT MICROCONTROLLER WITH 8K BYTES FLASH FEATURES - Compatible with MCS-51 TM‚ Products - 8K Bytes of In-System Reprogrammable Flash Memory - Endurance: 1,000 Write/Erase Cycles - Fully Static Operation: 0 Hz to 24 MHz - Three-level Program Memory Lock - 256 x 8-bit Internal RAM - 32 Programmable I/O Lines - Three 16-bit Timer/Counters - Eight Interrupt Sources - Programmable Serial Channel - Low-power Idle and Power-down Modes DESCRIPTION The AT89C52 is a low-power, high-performance CMOS 8-bit microcomputer with 8K bytes of Flash programmable and erasable read only memory (PEROM). The device is manufactured using Atmels high- density nonvolatile memory technology and is compatible with the industry-standard 80C51 and 80C52 instruction set and pinout. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C52 is a powerful microcomputer which provides a highly-flexible and cost- effective solution to many embedded control applications. PIN CONFIGURATIONS PQFP/TQFP 1 2 3 4 5 6 7 8 9 10 1133 32 31 30 29 28 27 26 25 24 23 P1.5 P1.6 P1.7 RST (RXD) P3.0 NC (TXD) P3.1 (INT0) P3.2 (INT1) P3.3 (T0) P3.4 iT1) P3.5P0.4 (AD4) P0.5 (AD5) P0.6 (AD6) P0.7 (AD7) EA/VPP NC ALE/PROG PSEN P2.7 (A15) P2.6 (A14) P2.5 (A13) 44 43 42 41 40 39 38 37 36 35 34 12 13 14 15 16 17 18 19 20 21 22 (WR) P3.6 (RD) P3.7 XTAL2 XTAL1 GND NC (A8) P2.0 (A9) P2.1 (A10) P2.2 (A11) P2.3 (A12) P2.4P1.4 P1.3 P1.2 P1.1 (T2 EX) P1.0 (T2) NC VCC P0.0 (AD0) P0.1 (AD1) P0.2 (AD2) P0.3 (AD3) PDIP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2040 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 (T2) P1.0 (T2 EX) P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 RST (RXD) P3.0 (TXD) P3.1 (INT0) P3.2 (INT1) P3.3 (T0) P3.4 (T1) P3.5 (WR) P3.6 (RD) P3.7 XTAL2 XTAL1 GNDVCC P0.0 (AD0) P0.1 (AD1) P0.2 (AD2) P0.3 (AD3) P0.4 (AD4) P0.5 (AD5) P0.6 (AD6) P0.7 (AD7) EA/VPP ALE/PROG PSEN P2.7 (A15) P2.6 (A14) P2.5 (A13) P2.4 (A12) P2.3 (A11) P2.2 (A10) P2.1 (A9) P2.0 (A8) PLCC 7 8 9 10 11 12 13 14 15 16 1739 38 37 36 35 34 33 32 31 30 29 P1.5 P1.6 P1.7 RST (RXD) P3.0 NC (TXD) P3.1 (INT0) P3.2 (INT1) P3.3 (T0) P3.4 (T1) P3.5P0.4 (AD4) P0.5 (AD5) P0.6 (AD6) P0.7 (AD7) EA/VPP NC ALE/PROG PSEN P2.7 (A15) P2.6 (A14) P2.5 (A13) 6 5 4 3 2 1 44 43 42 41 40 18 19 20 21 22 23 24 25 26 27 28 (WR) P3.6 (RD) P3.7 XTAL 2 XTAL1 GND NC (A8) P2.0 (A9) P2.1 (A10) P2.2 (A11) P2.3 (A12) P2.4P1.4 P1.3 P1.2 P1.1 (T2 EX) P1.0 (T2) NC VCC P0.0 (AD0) P0.1 (AD1) P0.2 (AD2) P0.3 (AD3)