ST72321B STMICROELECTRONICS [STMicroelectronics], ST72321B Datasheet - Page 156

• Manufacturer Part Number: ST72321B
• Description: 64/44-pin 8-bit MCU with 32 to 60K Flash/ROM, ADC, five timers, SPI, SCI, I2C interface
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

I/O PORT PIN CHARACTERISTICS (Cont’d)
12.8.2 Output Driving Current
Subject to general operating conditions for V
Figure 80. Typical V
Figure 81. Typical V
Notes:
1. The I
(I/O ports and control pins) must not exceed I
2. The I
I
156/187
IO
Symbol
V
V
(I/O ports and control pins) must not exceed I
OH
OL
0 .9
0 .8
0 .7
0 .6
0 .5
0 .4
0 .3
0 .2
0 .1
1 .4
1 .2
0 .8
0 .6
0 .4
0 .2
1)
2)
IO
IO
1
0
1
0
current sourced must always respect the absolute maximum rating specified in
current sunk must always respect the absolute maximum rating specified in
0
0
Output low level voltage for a standard I/O pin
when 8 pins are sunk at same time
(see
Output low level voltage for a high sink I/O pin
when 4 pins are sunk at same time
(see
Output high level voltage for an I/O pin
when 4 pins are sourced at same time
(see
Figure
Figure 81
Figure 82
0.01
0 .0 0 5
OL
OL
80)
and
and
at V
at V
Ii o (A )
Iio (A )
Parameter
Figure
Figure
DD
DD
0.0 2
=5V (standard)
=5V (high-sink)
Ta = 1 4 0 ° C "
Ta = 9 5 ° C
Ta = 2 5 ° C
Ta = -4 5 °C
0 .0 1
83)
85)
Ta = 1 4 0 °C
Ta = 9 5 °C
Ta = 2 5 °C
Ta = -4 5 ° C
VSS
0 .0 3
VDD
.
0 .0 1 5
DD
. True open drain I/O pins do not have V
, f
CPU
, and T
Figure 82. Typical V
I
I
I
I
I
I
5 .5
4 .5
3 .5
2 .5
IO
IO
IO
IO
IO
IO
A
5
4
3
2
Conditions
=+5mA
=+2mA
=+20mA, T
=+8mA
=-5mA, T
=-2mA
unless otherwise specified.
-0 .0 1
T
T
-0 .0 0 8 -0 .0 0 6 -0 .0 0 4
A
A
A
A
≤85°C
≥85°C
≤85°C
≥85°C
Section 12.2.2
OH
Section 12.2.2
V
V
V
at V
DD
DD
DD
Min
OH
-1.4
-1.6
-0.7
DD
.
V d d = 5 V 1 4 0 ° C m in
V d d = 5 v 9 5 °C m in
V d d = 5 v 2 5 °C m in
V d d = 5 v -4 5 °C m i n
=5V
-0 .0 0 2
and the sum of I
Max
1.2
0.5
1.3
1.5
0.6
and the sum of
0
Unit
V
IO