st72324bk STMicroelectronics, st72324bk Datasheet - Page 17

• Manufacturer Part Number: st72324bk
• Description: 3 V/5 V Range 8-bit Mcu With 4/8 Kbyte Rom, 10-bit Adc, Four Timers And Spi
• Manufacturer: STMicroelectronics

ST72323 ST72323L
Table 1.
1. I = input, O = output, S = supply.
2. C = CMOS 0.3V
3. On the chip, each I/O port has 8 pads. Pads that are not bonded to external pins are in input pull-up configuration after
4. HS = 20 mA high sink (on N-buffer only)
5. float = floating, wpu = weak pull-up, int = interrupt 1), ana = analog ports
6. OD = open drain 2), PP = push-pull.
7. In the open drain output column, “T” defines a true open drain I/O (P-Buffer and protection diode to VDD are not
8. It is mandatory to connect all available V
9. In the interrupt input column, “eiX” defines the associated external interrupt vector. If the weak pull-up column (wpu) is
10. OSC1 and OSC2 pins connect a crystal/ceramic resonator, or an external source to the on-chip oscillator; see
4
5
CT= CMOS 0.3V
reset. The configuration of these pads must be kept at reset state to avoid added current consumption.
implemented).
merged with the interrupt column (int), then the I/O configuration is pull-up interrupt input, else the configuration is floating
interrupt input.
Pin description
4
5 29 32 34 PB3
Pin no.
Device pin description (continued)
SeeSection 8: I/O ports on page
and
DD
DD
/0.7V
PB2
/0.7V
Section 11.5: Clock and timing characteristics
Pin name
DD
DD
with input trigger
DD
I/O C
I/O C
and V
Level
49. and
T
T
DD_x
(2)
pins to the supply voltage and all V
Section 11: Electrical characteristics on page 114
X
X
Input
ei2
for more details.
ei2
Port
(5)
(3)
Output
X
X
(6)
X Port B2
X Port B3
function
reset)
(after
Main
SS
and V
SSA
Alternate function
pins to ground.
Pin description
for more details.
Section 2:
17/167