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80C32 Datasheet(PDF) 36 Page - NXP Semiconductors |
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80C32 Datasheet(HTML) 36 Page - NXP Semiconductors |
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36 / 62 page  Philips Semiconductors Product specification 80C52/80C54/80C58 CMOS single-chip 8-bit microcontrollers 1996 Aug 16 6 PLASTIC LEADED CHIP CARRIER PIN FUNCTIONS LCC 6140 7 17 39 29 18 28 Pin Function 1 NC* 2 P1.0/T2 3 P1.1/T2EX 4 P1.2 5 P1.3 6 P1.4 7 P1.5 8 P1.6 9 P1.7 10 RST 11 P3.0/RxD 12 NC* 13 P3.1/TxD 14 P3.2/INT0 15 P3.3/INT1 Pin Function 16 P3.4/T0 17 P3.5/T1 18 P3.6/WR 19 P3.7/RD 20 XTAL2 21 XTAL1 22 VSS 23 NC* 24 P2.0/A8 25 P2.1/A9 26 P2.2/A10 27 P2.3/A11 28 P2.4/A12 29 P2.5/A13 30 P2.6/A14 Pin Function 31 P2.7/A15 32 PSEN 33 ALE 34 NC* 35 EA 36 P0.7/AD7 37 P0.6/AD6 38 P0.5/AD5 39 P0.4/AD4 40 P0.3/AD3 41 P0.2/AD2 42 P0.1/AD1 43 P0.0/AD0 44 VCC SU00741A * DO NOT CONNECT PLASTIC QUAD FLAT PACK PIN FUNCTIONS PQFP 44 34 1 11 33 23 12 22 Pin Function 1 P1.5 2 P1.6 3 P1.7 4 RST 5 P3.0/RxD 6 NC* 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 Pin Function 16 VSS 17 NC* 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 NC* 29 EA 30 P0.7/AD7 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 NC* 40 P1.0/T2 41 P1.1/T2EX 42 P1.2 43 P1.3 44 P1.4 SU00742A * DO NOT CONNECT PIN DESCRIPTIONS PIN NUMBER MNEMONIC DIP LCC QFP TYPE NAME AND FUNCTION VSS 20 22 16 I Ground: 0V reference. VCC 40 44 38 I Power Supply: This is the power supply voltage for normal, idle, and power-down operation. P0.0–0.7 39–32 43–36 37–30 I/O Port 0: Port 0 is an open-drain, bidirectional I/O port. Port 0 pins that have 1s written to them float and can be used as high-impedance inputs. Port 0 is also the multiplexed low-order address and data bus during accesses to external program and data memory. In this application, it uses strong internal pull-ups when emitting 1s. Port 0 also outputs the code bytes during program verification. External pull-ups are required during program verification. P1.0–P1.7 1–8 2–9 40–44, 1–3 I/O Port 1: Port 1 is an 8-bit bidirectional I/O port with internal pull-ups. Port 1 pins that have 1s written to them are pulled high by the internal pull-ups and can be used as inputs. As inputs, port 1 pins that are externally pulled low will source current because of the internal pull-ups. (See DC Electrical Characteristics: IIL). Port 1 also receives the low-order address byte during program memory verification. Alternate functions include: 1 2 40 I/O T2 (P1.0): Timer/Counter 2 external count input/Clockout 2 3 41 I T2EX (P1.1): Timer/Counter 2 Reload/Capture/Direction Control 3 4 42 I 4 5 43 I/O 5 6 44 I/O 6 7 1 I/O 7 8 2 I/O 8 9 3 I/O P2.0–P2.7 21–28 24–31 18–25 I/O Port 2: Port 2 is an 8-bit bidirectional I/O port with internal pull-ups. Port 2 pins that have 1s written to them are pulled high by the internal pull-ups and can be used as inputs. As inputs, port 2 pins that are externally being pulled low will source current because of the internal pull-ups. (See DC Electrical Characteristics: IIL). Port 2 emits the high-order address byte during fetches from external program memory and during accesses to external data memory that use 16-bit addresses (MOVX @DPTR). In this application, it uses strong internal pull-ups when emitting 1s. During accesses to external data memory that use 8-bit addresses (MOV @Ri), port 2 emits the contents of the P2 special function register. |
Número de pieza similar - 80C32 |
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Descripción similar - 80C32 |
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