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ST7232AK1B1 Fiches technique(PDF) 9 Page - STMicroelectronics

No de pièce ST7232AK1B1
Description  8-BIT MCU WITH 8K FLASH/ROM, ADC, 4 TIMERS, SPI, SCI INTERFACE
Download  154 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

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PIN DESCRIPTION (Cont’d)
For external pin connection guidelines, refer to See “ELECTRICAL CHARACTERISTICS” on page 111.
Legend / Abbreviations for Table 1:
Type:
I = input, O = output, S = supply
Input level:
A = Dedicated analog input
In/Output level: C = CMOS 0.3VDD/0.7VDD
CT= CMOS 0.3VDD/0.7VDD with input trigger
Output level:
HS = 20mA high sink (on N-buffer only)
Port and control configuration:
– Input:
float = floating, wpu = weak pull-up, int = interrupt 1), ana = analog ports
– Output:
OD = open drain 2), PP = push-pull
Refer to “I/O PORTS” on page 40 for more details on the software configuration of the I/O ports.
The RESET configuration of each pin is shown in bold. This configuration is valid as long as the device is
in reset state.
Table 1. Device Pin Description
Pin N°
Pin Name
Level
Port
Main
function
(after
reset)
Alternate Function
Input
Output
14
VAREF
S
Analog Reference Voltage for ADC
25
VSSA
S
Analog Ground Voltage
3
6
PF0/MCO/AIN8
I/O CT
X
ei1
X
X
X
Port F0
Main clock
out (fOSC/2)
ADC Analog
Input 8
4
7
PF1 (HS)/BEEP
I/O CT HS
X
ei1
X
X
Port F1
Beep signal output
58
PF4/OCMP1_A/
AIN10
I/O CT
X
XX
X
X
Port F4
Timer A Out-
put Com-
pare 1
ADC Analog
Input 10
6
9
PF6 (HS)/ICAP1_A
I/O CT HS
X
X
X
X
Port F6
Timer A Input Capture 1
710
PF7 (HS)/
EXTCLK_A
I/O CT HS
X
XX
X
Port F7
Timer A External Clock
Source
811
PC0/OCMP2_B/
AIN12
I/O CT
X
XX
X
X
Port C0
Timer B Out-
put Com-
pare 2
ADC Analog
Input 12
912
PC1/OCMP1_B/
AIN13
I/O CT
X
XX
X
X
Port C1
Timer B Out-
put Com-
pare 1
ADC Analog
Input 13
10 13 PC2 (HS)/ICAP2_B
I/O CT HS
X
X
X
X
Port C2
Timer B Input Capture 2
11 14 PC3 (HS)/ICAP1_B
I/O CT HS
X
X
X
X
Port C3
Timer B Input Capture 1
12 15
PC4/MISO/ICCDA-
TA
I/O CT
X
XX
X
Port C4
SPI Master
In / Slave
Out Data
ICC Data In-
put
13 16 PC5/MOSI/AIN14
I/O CT
X
XX
X
X
Port C5
SPI Master
Out / Slave
In Data
ADC Analog
Input 14
14 17 PC6/SCK/ICCCLK
I/O CT
X
XX
X
Port C6
SPI Serial
Clock
ICC Clock
Output
1


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