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PDF ST62T08C Data sheet ( Hoja de datos )
| Número de pieza | ST62T08C | |
| Descripción | (ST62T08C / ST62T09C / ST62T10C / ST62T20C / ST62E20C) 8-BIT OTP/EPROM MCUs | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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ST62T08C/T09C
ST62T10C/T20C/E20C
8-BIT OTP/EPROM MCUs WITH A/D CONVERTER,
OSCILLATOR SAFEGUARD, SAFE RESET AND 20 PINS
s 3.0 to 6.0V Supply Operating Range
s 8 MHz Maximum Clock Frequency
s -40 to +125°C Operating Temperature Range
s Run, Wait and Stop Modes
s 5 Interrupt Vectors
s Look-up Table capability in Program Memory
s Data Storage in Program Memory:
User selectable size
s Data RAM: 64bytes
s User Programmable Options
s 12 I/O pins, fully programmable as:
– Input with pull-up resistor
– Input without pull-up resistor
– Input with interrupt generation
– Open-drain or push-pull output
– Analog Input (except ST62T08C)
s 4 I/O lines can sink up to 20mA to drive LEDs or
TRIACs directly
s 8-bit Timer/Counter with 7-bit programmable
prescaler
s Digital Watchdog
s Oscillator Safe Guard
s Low Voltage Detector for Safe Reset
s 8-bit A/D Converter with up to 8 analog inputs
s On-chip Clock oscillator can be driven by Quartz
Crystal Ceramic resonator or RC network
s Power-on Reset
s One external Non-Maskable Interrupt
s ST626x-EMU2 Emulation and Development
System (connects to an MS-DOS PC via a
parallel port)
DEVICE SUMMARY
DEVICE
ST62T08C
ST62T09C
ST62T10C
ST62T20C
ST62E20C
OTP
(Bytes)
1036
1036
1836
3884
-
EPROM
(Bytes)
-
-
-
-
3884
I/O Pins
12
12
12
12
12
Analog
inputs
-
4
8
8
8
September 1998
PDIP20
PSO20
CDIP20W
(See end of Datasheet for Ordering Information)
Rev. 2.6
1/70
89
1 page  
ST62T08C/T09C ST62T10C/T20C/E20C
1.2 PIN DESCRIPTIONS
VDD and VSS. Power is supplied to the MCU via
these two pins. VDD is the power connection and
VSS is the ground connection.
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/VPP. The TEST must be held at VSS for nor-
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.
TIMER. This is the timer I/O pin. In input mode it is
connected to the prescaler and acts as external
timer clock input or as control gate input for the in-
ternal timer clock. In output mode the timer pin out-
puts the data bit when a time-out occurs. The user
can select as option the availability of an on-chip
pull-up at this pin.
PA0-PA3. These 4 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. PA0-
PA3 can also sink 20mA for direct LED driving.
PB0-PB7. These 8 lines are organized as one I/O
port (B). 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. PB0-
PB3 can be used as analog input to the A/D con-
verter on the ST62T10C, T20C and E20C, while
PB4-PB7 can be used as analog inputs for the A/D
converter on the ST62T09C, T10C, T20C and
E20C.
Figure 2. ST62T08C,T09C, T10C, T20C and
E20C Pin Configuration
VDD
TIMER
OSCin
OSCout
NMI
VPP/TEST
RESET
Ain*/PB7
Ain*/PB6
Ain*/PB5
1
2
3
4
5
6
7
8
9
10
20 VSS
19 PA0/20 mA Sink
18 PA1/20 mA Sink
17 PA2/20 mA Sink
16 PA3/20 mA Sink
15 PB0/Ain*
14 PB1/Ain*
13 PB2/Ain*
12 PB3/Ain*
11 PB4/Ain*
*Analog input availability depend on device
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5 Page 
ST62T08C/T09C ST62T10C/T20C/E20C
PROGRAMMING MODES (Cont’d)
1.4.2 Program Memory
EPROM/OTP programming mode is set by a
+12.5V voltage applied to the TEST/VPP pin. The
programming flow of the
ST62T08C,T09C,T10C,T20C/E20C is described
in the User Manual of the EPROM Programming
Board.
Table 2. ST62T08C, T09C Program Memory Map
Device Address
0000h-0B9Fh
0BA0h-0F9Fh
0FA0h-0FEFh
0FF0h-0FF7h
0FF8h-0FFBh
0FFCh-0FFDh
0FFEh-0FFFh
Description
Reserved
User ROM
Reserved
Interrupt Vectors
Reserved
NMI Interrupt Vector
Reset Vector
Table 3. ST62T10C Program Memory Map
Device Address
0000h-087Fh
0880h-0F9Fh
0FA0h-0FEFh
0FF0h-0FF7h
0FF8h-0FFBh
0FFCh-0FFDh
0FFEh-0FFFh
Description
Reserved
User ROM
Reserved
Interrupt Vectors
Reserved
NMI Interrupt Vector
Reset Vector
Table 4. ST62T20C,E20C Program Memory Map
Device Address
0000h-007Fh
0080h-0F9Fh
0FA0h-0FEFh
0FF0h-0FF7h
0FF8h-0FFBh
0FFCh-0FFDh
0FFEh-0FFFh
Description
Reserved
User ROM
Reserved
Interrupt Vectors
Reserved
NMI Interrupt Vector
Reset Vector
Note: OTP/EPROM devices can be programmed
with the development tools available from STMi-
croelectronics (ST62E2X-EPB or ST622X-KIT).
1.4.3 EPROM Erasing
The EPROM of the windowed package of the
MCUs may be erased by exposure to Ultra Violet
light. The erasure characteristic of the MCUs is
such that erasure begins when the memory is ex-
posed to light with a wave lengths shorter than ap-
proximately 4000Å. It should be noted that sun-
lights and some types of fluorescent lamps have
wavelengths in the range 3000-4000Å.
It is thus recommended that the window of the
MCUs packages be covered by an opaque label to
prevent unintentional erasure problems when test-
ing the application in such an environment.
The recommended erasure procedure of the
MCUs EPROM is the exposure to short wave ul-
traviolet light which have a wave-length 2537A.
The integrated dose (i.e. U.V. intensity x exposure
time) for erasure should be a minimum of 30W-
sec/cm2. The erasure time with this dosage is ap-
proximately 30 to 40 minutes using an ultraviolet
lamp with 12000µW/cm2 power rating. The
ST62E20C should be placed within 2.5cm (1Inch)
of the lamp tubes during erasure.
11/70
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11 Page | ||
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| PDF Descargar | [ Datasheet ST62T08C.PDF ] | |
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