MX10E80501 查看數據表（PDF） - Macronix International
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MX10E80501 Datasheet PDF : 88 Pages
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PRELIMINARY
MX10E8050I /
MX10E8050IA
Mnemonic
Vss
Vcc
P0.0 ~ 0.7
P1.0~1.7
P2.0~2.7
P3.0~3.7
Pin Number
PDIP PLCC
20
22
40
44
LQFP
16
38
Type
I
I
39-32 43-36 37-30 I/O
1-8
2-9
40-44 I/O
1-3
1
2
40
I/O
2
3
41
I
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
21-28 24-31 18-25 I/O
10-17 11,
5,
I/O
Name and Function
Ground: 0 volt reference
Power Supply: This is the power supply voltage for normal,
idle and power-down operation
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.
Port1: Port 1 is an 8-bit bi-directional 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. Note that P1.6 and
P1.7 are open drain pins for I2C function.
Alternate functions for port 1 include:
T2(P1.0): Timer/Counter 2 external count input/clock out
T2EX(P1.1): Timer/Counter 2 Reload / Capture / Direction
control
SDA (P1.7): Data line for I2C
SCL (P1.6): Clock line for I2C
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 ), port 2 emits the contents of P2 special
I
`function register.
Port 3: Port 3 is an 8-bit bi-directional I/O port with internal
P/N:PM0887 Specifications subject to change without notice, contact your sales representatives for the most update information. REV. 1.6, MAR. 28, 2005
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