ST62E01C ST Microelectronics, ST62E01C Datasheet - Page 5

• Manufacturer Part Number: ST62E01C
• Description: (ST62T00C / ST62T01C / ST62T03C / ST62E01C) 8-BIT OTP/EPROM MCUs
• Manufacturer: ST Microelectronics

1.2 PIN DESCRIPTIONS
V
these two pins. V
V
OSCin and OSCout. These pins are internally
connected to the on-chip oscillator circuit. A quartz
crystal, a ceramic resonator or an external clock
signal can be connected between these two pins.
The OSCin pin is the input pin, the OSCout pin is
the output pin.
RESET. The active-low RESET pin is used to re-
start the microcontroller. Internal pull-up is provid-
ed at this pin.
TEST/V
mal operation. If TEST pin is connected to a
+12.5V level during the reset phase, the EPROM
programming Mode is entered.
NMI. The NMI pin provides the capability for asyn-
chronous interruption, by applying an external non
maskable interrupt to the MCU. The NMI input is
falling edge sensitive. The user can select as op-
tion the availability of an on-chip pull-up at this pin.
PA1-PA3. These 3 lines are organized as one I/O
port (A). Each line may be configured under soft-
ware control as inputs with or without internal pull-
up resistors, interrupt generating inputs with pull-
up resistors, open-drain or push-pull outputs. PA1-
PA3 can also sink 20mA for direct LED driving.
DD
SS
is the ground connection.
and V
PP
. The TEST must be held at V
SS
. Power is supplied to the MCU via
DD
is the power connection and
SS
for nor-
PB0..PB1,PB3,PB5-PB7. These 6 lines are or-
ganized as one I/O port (B). Each line may be con-
figured under software control as inputs with or
without internal pull-up resistors, interrupt generat-
ing inputs with pull-up resistors, open-drain or
push-pull outputs. PB3,PB5..-PB7 can be used as
analog inputs for the A/D converter on the
ST62T00C, T01C and E01C.
Figure 2. ST62T03C,T00C, T01C, and E01C Pin
Configuration
*Analog input availability depend on device
V
Ain*/PB7
Ain*/PB6
PP
OSCout
RESET
OSCin
/TEST
ST62T00C/T01C ST62T03C/E01C
V
NMI
DD
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PA3/20 mA Sink
PA2/20 mA Sink
PB3/Ain*
PB5/Ain*
PA1/20 mA Sink
PB0
PB1
V
SS
5/70
5