ST72F621J4T1 STMicroelectronics, ST72F621J4T1 Datasheet - Page 10

• Manufacturer Part Number: ST72F621J4T1
• Description: IC MCU 8BIT LS 16K 44-TQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F621J4T1

• 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: 44-TQFP, 44-VQFP
• 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
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• On-chip Adc: 10 bit, 8 Channel
• For Use With: 497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 497-2111

ST7262xxx
Note 1: Peripheral not present on all devices. Refer to
2.1 PCB LAYOUT RECOMMENDATION
In the case of DIP20 devices the user should lay-
out the PCB so that the DIP20 ST7262 device and
the USB connector are centered on the same axis
ensuring that the D- and D+ lines are of equal
length. Refer to
Figure 6. Recommended PCB Layout for USB Interface with DIP20 package
10/139
43 4
44 5
Pin n°
-
-
-
-
Figure 6
-
-
-
-
PD3
PD2
Pin Name
Ground
USBDM
I/O C
I/O C
USB Connector
10
1
2
3
4
5
6
7
8
9
Level
T
T
Doc ID 6996 Rev 5
20
19
18
17
16
15
14
13
12
11
“Device Summary” on page
Port / Control
Input
x
x
Ground
USBVCC
USBDP
Output
1.5KOhm pull-up resistor
x
x
Function
Port D3
Port D2
reset)
(after
Main
1.
Alternate Function