LOW VOLTAGE 8-BIT ROM MCU - ST Microelectronics
Description
R
ST6208L/09L ST6210L/20L
LOW VOLTAGE 8-BIT ROM MCUs WITH A/D CONVERTER AND 20 PINS
s s s s s s s
s s
s s
s s s
s s s
2.
4 to 3.
9V Supply Operating Range 4 MHz Maximum Clock Frequency 0 to +70°C Operating Temperature Range Run, Wait and Stop Modes 5 Interrupt Vectors Look-up Table capability in Program Memory Data Storage in Program Memory: User selectable size Data RAM: 64bytes 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 ST6208L) 4 I/O lines can sink up to 12mA to drive LEDs 8-bit Timer/ Counter with 7-bit programmable prescaler Digital Watchdog 8-bit A/D Converter with 8 analog inputs On-chip Clock oscillator can be driven by Quartz Crystal Ceramic resonator or RC network Power-on Reset One external Non-Maskable Interrupt ST626x-EMU2 Emulation and Development System (connects to an MS-DOS PC via an RS232 serial line)
PDIP20
PSO20
(See end of Datasheet for Ordering Information)
DEVICE SUMMARY
DEVICE ST62T08L ST62T09L ST62T10L ST62T20L ROM
(Bytes)
I/O Pins 12 12 12 12
Analog inputs 4 8 8
1036 1036 1836 3884
Rev.
1.
0
November 1997
1/10
1
ST6208L/09L ST6210L/20L
1 GENERAL DESCRIPTION
1.
1 INTRODUCTION The ST6208L/09L/10L/20L are low voltage mask programmed ROM version of ST62T08C/T09C/ T10C/T20C OTP devices.
They offer the same functionality as OTP devices, selecting as ROM options the options defined in the programmable option byte of the OTP version, with the exception of the LVD Reset that is not available.
Figure 1.
Programming wave form 1.
2 ROM READOUT PROTECTION If the ROM READOUT PROTECTION option is selected, a protection fuse can be blown to prevent any access to the program memory content.
In case the user wants to blow this fuse, high voltage must be applied on the TEST pin.
Figure 2.
Programming Circuit
TES T
0 .
5s m in 100 s max
5V 47 m F
15 1 4V typ 10 5
V SS
100nF
t TES T 150 s typ 100mA...
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