ATSTK525 Atmel, ATSTK525 Datasheet - Page 12
ATSTK525
Manufacturer Part Number
ATSTK525
Description
KIT STARTER FOR AT90USB
Manufacturer
Atmel
Specifications of ATSTK525
Accessory Type
STK500 Expansion Module
Processor To Be Evaluated
AT90USBxxx
Data Bus Width
8 bit
Interface Type
RS-232, USB
Silicon Manufacturer
Atmel
Core Architecture
AVR
Silicon Core Number
AT90USB
Kit Contents
Board Docs
Rohs Compliant
Yes
For Use With/related Products
AT90USB Devices
For Use With
ATEVK525 - ADD ON KIT FOR STK525ATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATSTK525
Manufacturer:
Atmel
Quantity:
135
7608A–AVR–04/06
Using the STK525
2.5.2
2-12
RS-232C
The AT90USBxxx is a microcontroller with an on-chip USART peripheral (USART1).
Only the asynchronous mode is supported by the STK525.
The STK525 is supplied with a RS-232 driver/receiver. One female DB9 connector
assumes the RS-232 connections.
Figure 2-8 . RS-232 DB9 Connector
Figure 2-9 . RS-232 DB9 Connections
Figure 2-10 . Typical PC Connection Layout
RxD (AT90USBxxx)
CTS (AT90USBxxx)
RTS (AT90USBxxx)
TxD (AT90USBxxx)
STK525 / RS-232 DB9
Function
GND
RS-232 DB9 front view
5
9
Pin No
4
8
2
3
5
7
8
3
7
If Hardware Data Flow Control
2
6
1
pin 2
pin 3
pin 4
pin 6
pin 5
pin 7
pin 8
Pin No
STK525 Hardware User Guide
2
3
5
7
8
PC / DB9 serial port
(COM1 or COMx)
RS-TxD
RS-RxD
GND
RS-CTS
RS-RTS
RTS (PC)
CTS (PC)
RxD (PC)
TxD (PC)
Function
GND