ST72F621J4B1 STMicroelectronics, ST72F621J4B1 Datasheet - Page 34

• Manufacturer Part Number: ST72F621J4B1
• Description: IC MCU 8BIT LS 16K 42-PDIP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F621J4B1

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI, USB
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 31
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 42-DIP (0.600", 15.24mm)
• Processor Series: ST72F6x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: SCI, SPI, USB
• Maximum Clock Frequency: 12 MHz
• Number Of Programmable I/os: 31
• Number Of Timers: 2
• Operating Supply Voltage: 4 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: 0 C
• On-chip Adc: 10 bit
• For Use With: 497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: In Transition
• Other names: 497-2110-5

ST7262xxx
I/O PORTS (Cont’d)
9.2.5 Port A
Table 9. Port A Description
Figure 26. PA[7:0] Configuration
34/139
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
*Reset State
ALTERNATE INPUT
PORT A
floating
floating
floating
floating
floating
floating
floating
floating
DR SEL
DDR SEL
LATCH
LATCH
Input*
DDR
DR
ALTERNATE
OUTPUT
I/O
1
0
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
ALTERNATE ENABLE
0
Output
1
DIGITAL ENABLE
ANALOG ENABLE
(ADC)
ALTERNATE ENABLE
Doc ID 6996 Rev 5
USBOE
IT1 Schmitt triggered input
AIN0 (ADC)
IT2 Schmitt triggered input
AIN1 (ADC)
IT3 Schmitt triggered input
AIN2 (ADC)
IT4 Schmitt triggered input
AIN3 (ADC)
AIN4 (ADC)
AIN5 (ADC)
AIN6 (ADC)
AIN7 (ADC)
ALTERNATE ENABLE
Signal
ANALOG
SWITCH
Alternate Function
V
P-BUFFER
SS
USBOE = 1 (MISC)
IT1E = 1 (ITRFRE1)
CS[2:0] = 000 (ADCCSR)
IT2E = 1 (ITRFRE1)
CS[2:0] = 001 (ADCCSR)
IT3E = 1 (ITRFRE1)
CS[2:0] = 010 (ADCCSR)
IT4E = 1 (ITRFRE1)
CS[2:0] = 011 (ADCCSR)
CS[2:0] = 100 (ADCCSR)
CS[2:0] = 101 (ADCCSR)
CS[2:0] = 110 (ADCCSR)
CS[2:0] = 111 (ADCCSR)
V
N-BUFFER
DD
Condition
V
DD
DIODES
PAD