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GMS81C50 bảng dữ liệu(PDF) 13 Page - Hynix Semiconductor

tên linh kiện GMS81C50
Giải thích chi tiết về linh kiện  8-BIT SINGLE CHIP MICROCONTROLLERS
PDF  99 Pages
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nhà sản xuất  HYNIX [Hynix Semiconductor]
Trang chủ  http://www.skhynix.com/kor/main.do
Logo HYNIX - Hynix Semiconductor

GMS81C50 bảng dữ liệu(HTML) 13 Page - Hynix Semiconductor

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GMS81C50 Series
HYUNDAI
10
5. PIN FUNCTION
VDD: Supply voltage.
VSS: Circuit ground.
TEST: Used for shipping inspection of the IC. For normal
operation, it should be connected to VDD.
RESET: Reset the MCU.
XIN: Input to the inverting oscillator amplifier and input to
the internal main clock operating circuit.
XOUT: Output from the inverting oscillator amplifier.
R00~R07: R0 is an 8-bit CMOS bidirectional I/O port. R0
pins 1 or 0 written to the Port Direction Register can be
used as outputs or inputs.
R10~R17: R1 is an 8-bit CMOS bidirectional I/O port. R1
pins 1 or 0 written to the Port Direction Register can be
used as outputs or inputs.
In addition, R1 serves the functions of the various follow-
ing special features.
R20~R22, R30~R37 : R2 & R3 is a 8-bit CMOS bidirec-
tional I/O port. Each pins 1 or 0 written to the their Port Di-
rection Register can be used as outputs or inputs.
R40 : R40 is 1-bit CMOS bidirectional I/O port. This pin 1
or 0 written to the its Port Direction Register can be used
as outputs or inputs.
Port pin
Alternate function
R11
R12
R14
R15
R16
R17
INT1 (External Interrupt input 1)
INT2 (External Interrupt input 2)
/EC (Event Counter input )
T2 (Timer / Counter input 2)
T1 (Timer / Counter input 1)
T0 (Timer / Counter input 0)



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