ST7263BK1 STMicroelectronics, ST7263BK1 Datasheet - Page 45

• Manufacturer Part Number: ST7263BK1
• Description: LOW SPEED USB 8-BIT MCU FAMILY WITH UP TO 32K FLASH/ROM, DFU CAPABILITY, 8-BIT ADC, WDG, TIMER, SCI and I2C
• Manufacturer: STMicroelectronics

Specifications of ST7263BK1

• 4, 8, 16 Or 32 Kbytes Program Memory: high density Flash (HDFlash), FastROM or ROM with Read-Out and Write protection

ST7263Bxx
9.3
9.3.1
Figure 22. PA0, PA3, PA4, PA5, PA6, PA7 and PD[7:4] configuration
ALTERNATE INPUT
I/O port implementation
The hardware implementation on each I/O port depends on the settings in the DDR register
and specific feature of the I/O port such as ADC input or true open drain.
Port A
Table 11.
1. Reset state.
2. Not available on SO24
PA0
PA3
PA4
PA5
PA6
PA7
PORT A
(2)
DR SEL
DDR SEL
LATCH
LATCH
with pull-up
with pull-up
with pull-up
with pull-up
with pull-up
with pull-up
DDR
DR
Port A0, A3, A4, A5, A6, A7 description
Input
ALTERNATE
OUTPUT
(1)
1
0
I/Os
1
push-pull
push-pull
Push-pull
Push-pull
Push-pull
Push-pull
0
Output
Doc ID 7516 Rev 8
ALTERNATE ENABLE
ALTERNATE ENABLE
ALTERNATE ENABLE
MCO (Main Clock output)
Timer EXTCLK
Timer ICAP1
IT1 Schmitt triggered input IT1E = 1 (ITIFRE)
Timer ICAP2
IT2 Schmitt triggered input IT2E = 1 (ITIFRE)
Timer OCMP1
IT3 Schmitt triggered input IT3E = 1 (ITIFRE)
Timer OCMP2
IT4 Schmitt triggered input IT4E = 1 (ITIFRE)
CMOS SCHMITT TRIGGER
Signal
PULL-UP
Alternate function
V
SS
V
N-BUFFER
P-BUFFER
DD
MCO = 1 (MISCR)
CC1 =1
CC0 = 1 (Timer CR2)
OC1E = 1
OC2E = 1
V
DD
Condition
DIODES
PAD
I/O ports
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