SAB80515 Datasheet, PDF (220/270 Pages) Siemens Semiconductor Group – 8-Bit Single-Chip Microcontroller Family

Device Specifications
Pin Definitions and Functions
Symbol Pin
Pin
Input (I) Function
P-LCC-68 P-MQFP-80 Output (O)
P4.0-P4.7 1-3, 5-9 72-74,
I/O
76-80
PE
4
75
I
RESET 10
1
I
V _AREF
11
3
Port 4
is an 8-bit bidirectional I/O port with
internal pullup resistors. Port 4 pins that
have 1’s written to them are pulled high by
the internal pullup resistors, and in that
state can be used as inputs. As inputs,
port 4 pins being externally pulled low will
source current (I_{I L,} in the DC
characteristics) because of the internal
pullup resistors.
Power saving mode enable
A low level on this pin enables the use of
the power saving modes (idle mode and
power-down mode). When PE is held on
high level it is impossible to enter the
power saving modes.
Reset pin
A low level on this pin for the duration of
two machine cycles while the oscillator is
running resets the SAB 80C515. A small
internal pullup resistor permits power-on
reset using only a capacitor connected
to V_SS.
Reference voltage for the A/D converter
V_AGND
12
4
Reference ground for the A/D converter
P6.7-P6.0 13-20
5-12
Port 6
is an 8-bit undirectional input port. Port
pins can be used for digital input if voltage
levels simultaneously meet the
specifications for high/low input voltages
and for the eight multiplexed analog inputs
of the A/D converter.
Semiconductor Group
220