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ST7285C Datasheet(HTML) 8 Page - STMicroelectronics

Part No. ST7285C
Description  8-BIT MCU FOR RDS WITH 48K ROM, 3K RAM, ADC, TWO TIMERS, TWO SPIs, I2C AND SCI INTERFACES
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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ST7285C Datasheet(HTML) 8 Page - STMicroelectronics

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ST7285C
33
PF0
I/O Port PF0
-
Software selectable as triggered input, a push
pull output, open drain output, or triggered in-
terrupt input with pull up (Interrupt I2).
34
PF1
I/O Port PF1
-
35
PF2
I/O Port PF2
-
36
PF3
I/O Port PF3
-
37
PF4
I/O Port PF4
-
Software selectable as a triggered input or as
a push pull output.
38
PF5
I/O Port PF5
-
39
PF6
I/O Port PF6
-
40
PF7
I/O Port PF7
-
41
VSSP
Ground for Output Buff-
ers.
-
This pin is connected to pin 1.
42
VDDP
Power Supply for Out-
put Buffers
-
This pin is connected to pin 2.
43
AINT
Reserved
-
Must be tied to 5V
44
ARS
Reserved
-
Must be tied to 5V
45
PG0
I/O Port PG0
-
Software selectable as triggered input or push
pull output.
46
PG1
I/O Port PG1
-
47
PG2
I/O Port PG2
-
48
PG3
I/O Port PG3
-
Software selectable as triggered input, a push
pull output, open drain output, or triggered in-
terrupt input with pull up (Interrupt I1).
49
PG4
I/O Port PG4
-
Software selectable as triggered input or push
pull output. Note that PH0, 1, 2 offer alternate
function capabilities for test purposes.
50
PG5
I/O Port PG5
-
51
PG6
I/O Port PG6
-
52
PG7
I/O Port PG7
-
53
PH0/
RDSQUAL
I/O Port PH0
RDS Quality signal
54
PH1/
RDSCLKOUT
I/O Port PH1
RDS GBS Clock Out
signal
55
PH2/
RDSDATA
I/O Port PH2
RDS GBS Data signal
56
PH3
I/O Port PH3
-
Software selectable as triggered input or high
voltage (10V max) open drain output.
57
PH4
I/O Port PH4
-
58
PH5
I/O Port PH5
-
59
RDSCOMP
RDS Comp Input signal
Used to feed the Demodulator from an external
filter when the internal filter is switched off.
60
RDSFIL
RDS Filtered Output
signal
Used for Demodulator test purposes.
61
RDSREF
RDS Input Reference
62
MPX
RDS input signal
63
VDDA
Analog Power Supply
For RDS and ADC circuits
64
VSSA
Analog Ground
65
PA0/AIN0
I/O Port PA0
Analog input to ADC
Alternate function or I/O. The I/O configuration
is software selectable as triggered input or
push pull output. Note that when a pin is used
as Analog input it must not be configured as an
output to avoid conflicts with the analog volt-
age to be measured.
66
PA1/AIN1
I/O Port PA1
67
PA2/AIN2
I/O Port PA2
68
PA3/AIN3
I/O Port PA3
69
PA4/AIN4
I/O Port PA4
70
PA5/AIN5
I/O Port PA5
71
PA6/AIN6
I/O Port PA6
72
PA7/AIN7
I/O Port PA7
Pin
Pin Name(s)
Basic Function
Alternate Fun ction
Remarks


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