IC AT89S

IC
Regarding the in-system programming procedure, ATMEL currently recommends the
following ISP waveforms for implementing the ISP programming algorithm in the
AT89S-series devices:
These waveforms should be used in addition to the serial downloading waveforms
shown in the respective device datasheets.
AT89S8252
24XX
XXXX
AT89LS8252
12XX
XXXX
AT89S53
24XX
XXXX
AT89LS53
12XX
XXXX
RST
(>2 machine cycles)
A (<1/2 machine cycle)
(>1 machine cycle)
SCK 7 6
GND
VCC
This glitch MAY occur in certain systems because when RST
goes high, port 1 pins will be driven with a strong pullup for
one clock cycle; if the glitch does occur, it can be interpreted
incorrectly as the first SCK pulse of a serial data stream.
So the falling edge of RST at point A is necessary to
clean-up the internal state machine.
should be powered

ICAT89S825324PU AT90CAN12816AU AT90CAN12816MU AT90CAN6416MU AT90PWM316SQ AT90PWM3B16MU AT90S120012SI AT90S120012SI