STR71XF_08 Datasheet, PDF (13/78 Pages) STMicroelectronics – ARM7TDMI™ 32-bit MCU with Flash, USB, CAN 5 timers, ADC, 10 communications interfaces

STR71xF
System architecture
Table 4.
Pin n°
STR710 pin description
Input
Pin name
Output
P0.10/U1.RX/
1 A1 U1.TX/
SC.DATA
I/O pd C_T X 4mA T
2 B2 RD
O ⁵⁾
X
3
C2
P0.11/BOOT.1
/U1.TX
I/O pd
C_T
4 C3 P0.12/SC.CLK I/O pd C_T
5 D1 V_SS
S
6 D2 V₃₃
S
4mA X X
4mA X X
7 B1 P2.0/CS.0
I/O ⁸⁾ C_T
8mA X X
8 C1 P2.1/CS.1
I/O
pu
2)
C_T
8mA X X
9
D3
P0.13/U2.RX/
T2.OCMPA
I/O pu C_T X 4mA X
X
10
D4
P0.14/U2.TX/
T2.ICAPA
I/O pu C_T
11 E1 P2.2/CS.2
12 E2 P2.3/CS.3
I/O
pu
2)
C_T
I/O
pu
2)
C_T
4mA X X
8mA X X
8mA X X
Main
function
(after
reset)
Alternate function
UART1:
Receive Data
input
UART1: Transmit
data output.
Note: This pin may be used for
Port 0.10 ^{Smartcard DataIn/DataOut or single}
wire UART (half duplex) if
programmed as Alternate Function
Output. The pin will be tri-stated
except when UART transmission is in
progress
External Memory Interface: Active low read signal
for external memory. It maps to the OE_N input of
the external components.
Select Boot
Port 0.11 Configuration
input
UART1: Transmit
data output.
Port 0.12 Smartcard reference clock output
Ground voltage for digital I/Os⁴⁾
Supply voltage for digital I/Os⁴⁾
Port 2.0
External Memory Interface: Select
Memory Bank 0 output
Note: This pin is forced to output
push-pull 1 mode at reset to allow
boot from external memory
Port 2.1
External Memory Interface: Select
Memory Bank 1 output
UART2:
Port 0.13 Receive Data
input
Timer2: Output
Compare A output
UART2:
Port 0.14 Transmit data
output
Timer2: Input
Capture A input
Port 2.2
External Memory Interface: Select
Memory Bank 2 output
Port 2.3
External Memory Interface: Select
Memory Bank 3 output
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