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MX10E8050X Datasheet(PDF) 4 Page - Macronix International |
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MX10E8050X Datasheet(HTML) 4 Page - Macronix International |
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4 / 88 page  4 P/N:PM0887 MX10E8050I / Specifications subject to change without notice, contact your sales representatives for the most update information. PRELIMINARY MX10E8050IA REV. 1.6, MAR. 28, 2005 Mnemonic Pin Number Type Name and Function PDIP PLCC LQFP V ss 20 22 16 I Ground: 0 volt reference V cc 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, bi-directional I/O port. Port 0 pins 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 accessed to external program and data memory. In this application, it uses strong internal pull-ups when emitting 1s. P1.0~1.7 1-8 2-9 40-44 I/O Port1: Port 1 is an 8-bit bi-directional I/O port with internal 1-3 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. Note that P1.6 and P1.7 are open drain pins for I2C function. Alternate functions for port 1 include: 1 2 40 I/O T2(P1.0): Timer/Counter 2 external count input/clock out 2 3 41 I T2EX(P1.1): Timer/Counter 2 Reload / Capture / Direction control 3 4 42 I SDA (P1.7): Data line for I2C 4 5 43 I/O SCL (P1.6): Clock line for I2C 5 6 44 I/O 6 7 1 I/O 7 8 2 I/O 8 9 3 I/O P2.0~2.7 21-28 24-31 18-25 I/O Port 2 : Port 2 is an 8-bit bi-directional I/O port with internal pull-ups. Port2 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 pulled low will source current because of the internal pull-ups. Port 2 emits the high ordered 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 using 8-bit addresses (MOVX@R I), port 2 emits the contents of P2 special `function register. P3.0~3.7 10-17 11, 5, I/O Port 3: Port 3 is an 8-bit bi-directional I/O port with internal |
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