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ST72411T1 Datasheet(PDF) 6 Page - STMicroelectronics

No. de pieza ST72411T1
Descripción Electrónicos  8-BIT MCU WITH SMARTCARD INTERFACE, LCD DRIVER, 8-BIT TIMER, SAFE RESET AND SUPPLY MONITORING
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72411T1 Datasheet(HTML) 6 Page - STMicroelectronics

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ST72411R
6/71
PIN DESCRIPTION (Cont’d)
Legend / Abbreviations:
Type:
I = input, O = output, S = supply
Output level:
SC = powered by VSC_PWR smartcard power, HS = high sink (on N-buffer only)
Input level:
C = CMOS : 0.3VDD/0.7VDD, SC = CMOS : 0.3VSC_PWR / 0.7VSC_PWR
Port configuration capabilities:
– Input:float = floating, wpu = weak pull-up, int = interrupt, wpd = weak pull-down
– Output: OD = open drain, T = true open drain, PP = push-pull
Note: Reset configuration of each pin is bold.
Table 1. Device Pin Description
Pin n
°
Pin Name
Level
Port
Main
function
(after
reset)
Alternate function
Inpu t
Outp ut
1 ... 4
S28 ... S31
O
LCD Segment outputs
5
RESET
I/O
Top priority non maskable interrupt.
6
OSC_SEL / ISP_SEL
I
This pin acts as the Remote ISP mode and
oscillator selection.
7
PA7
I/O
C
X
EI0
X
X
Port A7
8
NC
Not Connected
9
PA6
I/O
C
X
EI0
X
X
Port A6
10
NC
Not Connected
11
PA5
I/O
C
X
EI0
X
X
Port A5
12
PA4
I/O
C
X
EI0
X
X
Port A4
13
PA3
I/O
C
X
EI0
X
X
Port A3
14
PA2 / ISPCLK2
I/O
C
X
EI0
X
X
Port A2
ISP Clock line 2
15
PA1 / ISPDATA2
I/O
C
X
EI0
X
X
Port A1
ISP Data line 2
16
PA0 / TIMIO
I/O
C
X
EI0
X
X
Port A0
8-bit Timer I/O
17
NC
Not Connected
18
VREF
1)
I
Analog input for battery power monitoring
19
PB6
I/O
C
X
EI1
X
X
Port B6
20
PB5
I/O
C
X
EI1
X
X
Port B5
21
PB4(SC)
I/O SC
SC
X
EI1
X
X
Port B4 (Smartcard)
22
PB3(SC)
I/O SC
SC
X
EI1
X
X
Port B3 (Smartcard)
23
PB2(SC_CK) /
ISPCLK1
I/O SC
SC
X
EI1
X
X
Port B2 (Smartcard
clock)
ISP Clock line 1
24
PB1(SC_DATA) /
ISPDATA1
I/O SC
SC
X
XX
Port B1 (Smartcard
Data)
ISP Data line 1
EI1
25
PB0(SC)
I/O SC
SC
X
EI1
X
X
Port B0 (Smartcard)
26
SC_PWR
O
Smartcard Regulated Supply Output
27
VDDA
S
Analog Power Supply Voltage
28
VDD
S
Digital Main Supply Voltage


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