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MC908QT2MFQE Datasheet(PDF) 22 Page - Freescale Semiconductor, Inc

No. de Pieza. MC908QT2MFQE
Descripción  M68HC08 Microcontrollers
Descarga  168 Pages
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Fabricante  FREESCALE [Freescale Semiconductor, Inc]
Página de inicio  http://www.freescale.com
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MC908QT2MFQE Datasheet(HTML) 22 Page - Freescale Semiconductor, Inc

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General Description
MC68HC908QY/QT Family Data Sheet, Rev. 6
22
Freescale Semiconductor
1.5 Pin Functions
Table 1-2 provides a description of the pin functions.
Table 1-2. Pin Functions
Pin
Name
Description
Input/Output
VDD
Power supply
Power
VSS
Power supply ground
Power
PTA0
PTA0 — General purpose I/O port
Input/Output
AD0 — A/D channel 0 input
Input
TCH0 — Timer Channel 0 I/O
Input/Output
KBI0 — Keyboard interrupt input 0
Input
PTA1
PTA1 — General purpose I/O port
Input/Output
AD1 — A/D channel 1 input
Input
TCH1 — Timer Channel 1 I/O
Input/Output
KBI1 — Keyboard interrupt input 1
Input
PTA2
PTA2 — General purpose input-only port
Input
IRQ — External interrupt with programmable pullup and Schmitt trigger input
Input
KBI2 — Keyboard interrupt input 2
Input
TCLK — Timer clock input
Input
PTA3
PTA3 — General purpose I/O port
Input/Output
RST — Reset input, active low with internal pullup and Schmitt trigger
Input
KBI3 — Keyboard interrupt input 3
Input
PTA4
PTA4 — General purpose I/O port
Input/Output
OSC2 —XTAL oscillator output (XTAL option only)
RC or internal oscillator output (OSC2EN = 1 in PTAPUE register)
Output
Output
AD2 — A/D channel 2 input
Input
KBI4 — Keyboard interrupt input 4
Input
PTA5
PTA5 — General purpose I/O port
Input/Output
OSC1 — XTAL, RC, or external oscillator input
Input
AD3 — A/D channel 3 input
Input
KBI5 — Keyboard interrupt input 5
Input
PTB[0:7](1)
1. The PTB pins are not available on the 8-pin packages (see note in 12.1 Introduction).
8 general-purpose I/O ports
Input/Output


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