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ST6294 Schematic ( PDF Datasheet ) - STMicroelectronics

Teilenummer ST6294
Beschreibung 8-BIT HCMOS MCU
Hersteller STMicroelectronics
Logo STMicroelectronics Logo 




Gesamt 26 Seiten
ST6294 Datasheet, Funktion
ST6294
8-BIT HCMOS MCU WITH
A/D CONVERTER, EEPROM & AUTO-RELOAD TIMER
PRELIMINARY DATA
3 to 6.0V Supply Operating Range
8 MHz Maximum Clock Frequency
-25 to +85°C Operating Temperature Range
Run, Wait & Stop Modes
5 different interrupt vectors
Look-up table capability in ROM
User ROM:
3868 bytes
Data ROM:
User selectable size
(in program ROM)
Data RAM:
128 bytes
EEPROM:
128 bytes
PDIP28, PSO28 packages
21 fully software programmable I/O as:
– Input with pull-up resistor
– Input without pull-up resistor
– Input with interrupt generation
– Open-drain or push-pull outputs
– Analog Inputs
8 I/O lines can sink up to 20mA for direct LED or
TRIAC driving
8 bit counter with a 7-bit programmable prescaler
(Timer1)
8 bit auto-reload timer with 7-bit programmable
prescaler (AR Timer)
Digital Watchdog
8 bit A/D Converter with up to 13 analog inputs
8 bit Synchronous Peripheral Interface (SPI)
On-chip clock oscillator (Quartz Crystal or Ce-
ramic)
Power-on Reset
Clock output
9 powerful addressing modes
The development tool of the ST6294 microcon-
trollers consists of the ST626x-EMU emulation
and development system connected via a stand-
ard RS232 serial line to an MS-DOS Personal
Computer
1
PDIP28
1
PSO28
(Ordering Information at the end of the datasheet)
October 1993
This is Preliminary Data from SGS-THOMSON. Details are subject to change without notice.
1/26






ST6294 Datasheet, Funktion
ST6294
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Test Conditions
TA Operating Temperature
VDD Operating Supply Voltage
fINT Internal Frequency (3)
8 Suffix Version
fOSC= 4MHz
fINT = 4MHz
fOSC = 8MHz
fINT = 8MHz
VDD = 3V
VDD = 4.5V
Pin Injection Current (positive)
IINJ+
Digital Input (1)
Analog Inputs (2)
VDD = 4.5 to 5.5V
Min.
-25
3.0
4.5
0
0
Value
Typ.
Max.
85
6.0
6.0
4.0
8.0
Unit
°C
V
V
MHz
MHz
+5 mA
Pin Injection Current (negative)
IINJ- Digital Input (1)
VDD = 4.5 to 5.5V
Analog Inputs
-5 mA
Notes :
1. A current of ± 5mA can be forced on each pin of the digital section without affecting the functional behaviour of the device. For a positive
current injected into one pin, a part of this current (10%) can be expected to flow from the neighbouring pins.
2. If a total current of +1 mA is flowing into the single analog channel or if the total current flowing into all the analog inputs is of 1mA, all the
resulting conversions are shifted by +1 LSB. If a total positive current is flowing into the single analog channel or if the total current
flowing into all the analog inputs is of 5mA, all the resulting conversions are shifted by +2 LSB.
3. An oscillator frequency above 1MHz is recommended for reliable A/D results.
Maximum Operating FREQUENCY (Fmax) Versus SUPPLY VOLTAGE (VDD)
Maximum FREQUENCY ( MHz )
8
7
6
5
4
3
2
1
3 3.5 4 4.5 5
SUPPLY VOLTAGE ( VD D )
The shaded area is outside the ST6294 operating range, device functionality is not guaranteed.
6/26
5.5 6
VR001 807

6 Page









ST6294 pdf, datenblatt
ST6294
PACKAGE MECHANICAL DATA
Figure 4. 28-Pin Dual in Line Plastic (B), 600-Mil Width
Dim.
mm
inches
Min Typ Max Min Typ Max
A 2.2
4.8 0.086
0.189
A1 0.51
1.77 0.010
0.069
B 0.38
0.58 0.015
0.023
B1 0.97
1.52 0.055
0.065
C 0.2
0.3 0.008
0.009
D 35.06
36.22 1.400
1.425
D1 – – – – – –
E 16.3 0.641
E1 12.9
0.508
K1 – – – – – –
K2 – – – – – –
L 3.18
4.44 1.25
0.174
e1 2.54
0.10
Number of Pins
N 28
Figure 5. 28-Lead Small Outline Plastic (M), 300-Mil Width
Dim.
mm
inches
Min Typ Max Min Typ Max
A 2.05
2.55 0.081
0.10
A1 0.1
0.3 0.004
.0118
B 0.35
0.49 .0138
.0192
C 0.23
0.32 .0091
.0125
D 17.7
18.1 .6969
.7125
D1 – – – – – –
E 10.0
10.65 0.394
0.419
E1 7.40
7.60 .2914
.2992
E2 – – – – – –
L 0.40
1.27 0.016
0.050
e 1.27
0.05
α––– –––
Number of Pins
N 28
12/26

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