ST72C334J2B6 STMicroelectronics, ST72C334J2B6 Datasheet - Page 43

• Manufacturer Part Number: ST72C334J2B6
• Description: 8-bit Microcontrollers - MCU Flash 8K SPI/SCI
• Manufacturer: STMicroelectronics

Specifications of ST72C334J2B6

• Product Category: 8-bit Microcontrollers - MCU
• Core: ST7
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Program Memory Size: 8 KB
• Data Ram Size: 384 B
• On-chip Adc: Yes
• Operating Supply Voltage: 3.2 V to 5.5 V
• Package / Case: SDIP-42
• Mounting Style: Through Hole
• A/d Bit Size: 8 bit
• A/d Channels Available: 8
• Data Rom Size: 256 B
• Interface Type: SCI, SPI
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 32
• Number Of Timers: 4 bit
• Program Memory Type: Flash
• Factory Pack Quantity: 13
• Supply Voltage - Max: 5 V
• Supply Voltage - Min: 3.2 V

I/O PORTS (Cont’d)
12.4 LOW POWER MODES
Table 8. Port Configuration
WAIT
HALT
Mode
Port A
Port B
Port C
Port D
Port E
Port F
Port
No effect on I/O ports. External interrupts
cause the device to exit from WAIT mode.
No effect on I/O ports. External interrupts
cause the device to exit from HALT mode.
PA7:6
PA5:4
PA3
PA2:0
PB4:3
PB7:5, PB2:0
PC7:4, PC1:0
PC3:2
PD7:0
PE7:4
PF7:6
PF4
PF2
PF1:0
PE1:0
Pin name
Description
floating
floating
floating
floating
floating
floating
floating
floating
floating
floating
floating
floating
floating
floating
OR = 0
floating
Input
floating interrupt
floating interrupt
floating interrupt
pull-up interrupt
pull-up interrupt
pull-up interrupt
OR = 1
pull-up
pull-up
pull-up
pull-up
pull-up
pull-up
pull-up
pull-up
12.5 INTERRUPTS
The external interrupt event generates an interrupt
if the corresponding configuration is selected with
DDR and OR registers and the I-bit in the CC reg-
ister is reset (RIM instruction).
External interrupt on
selected external
event
Interrupt Event
ST72334J/N, ST72314J/N, ST72124J
open drain
open drain
open drain
open drain
open drain
open drain
open drain
open drain
open drain
open drain
open drain
open drain
open drain
open drain
OR = 0
true open-drain
Event
Flag
-
Output
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
OR = 1
Control
Enable
DDRx
ORx
Bit
from
Wait
Exit
Yes
High-Sink
Yes
Yes
Yes
Yes
No
No
No
No
from
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Halt
Exit
Yes