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R5F64166DFD Datasheet(PDF) 19 Page - Renesas Technology Corp

Part # R5F64166DFD
Description  RENESAS MCU
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

R5F64166DFD Datasheet(HTML) 19 Page - Renesas Technology Corp

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REJ03B0253-0110
Rev.1.10
Page 19 of 95
Jun 23, 2010
R32C/116 Group
1. Overview
1.5
Pin Definitions and Functions
Table 1.14 to Table 1.18 show the pin definitions and functions.
Notes:
1.
Pins
INT6 to INT8 are available in the 144-pin package only.
2.
Pins D16 to D31 are available in the 144-pin package only.
Table 1.14
Pin Definitions and Functions (1/4)
Function
Symbol
I/O
Description
Power supply
VCC, VSS
I
Applicable as follows: VCC = 3.0 to 5.5 V, VSS = 0 V
Connecting pins
for decoupling
capacitor
VDC0, VDC1
A decoupling capacitor for internal voltage should be
connected between VDC0 and VDC1
Analog power
supply
AVCC, AVSS
I
Power supply for the A/D converter. AVCC and AVSS
should be connected to VCC and VSS, respectively
Reset input
RESET
I
The MCU is reset when this pin is driven low
CNVSS
CNVSS
I
This pin should be connected to VSS via a resistor
Debug port
NSD
I/O
This pin is to communicate with a debugger. It should be
connected to VCC via a resistor of 1 to 4.7 k
Ω
Main clock input
XIN
I
Input/output for the main clock oscillator. A crystal, or a
ceramic resonator should be connected between pins XIN
and XOUT. An external clock should be input at the XIN
while leaving the XOUT open
Main clock output XOUT
O
Sub clock input
XCIN
I
Input/output for the sub clock oscillator. A crystal oscillator
should be connected between pins XCIN and XCOUT. An
external clock should be input at the XCIN while leaving the
XCOUT open
Sub clock output XCOUT
O
BCLK output
BCLK
O
BCLK output
Clock output
CLKOUT
O
Output of the clock with the same frequency as low speed
clocks, f8, or f32
External interrupt
input
INT0 to INT8 (1)
I
Input for external interrupts
NMI input
P8_5/
NMI
I
Input for NMI
Key input interrupt
KI0 to KI3
I
Input for the key input interrupt
Bus control pins
D0 to D7
I/O
Input/output of data (D0 to D7) while accessing an external
memory space with a separate bus
D8 to D15
I/O
Input/output of data (D8 to D15) while accessing an
external memory space with 16-bit or 32-bit separate bus
D16 to D31 (2)
I/O
Input/output of data (D16 to D31) while accessing an
external memory space with 32-bit separate bus
A0 to A23
O
Output of address bits A0 to A23
A0/D0 to A7/D7
I/O
Output of address bits (A0 to A7) and input/output of data
(D0 to D7) by time-division while accessing an external
memory space with multiplexed bus
A8/D8 to
A15/D15
I/O
Output of address bits (A8 to A15) and input/output of data
(D8 to D15) by time-division while accessing an external
memory space with 16-bit or 32-bit multiplexed bus


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