ATSTK501 Atmel, ATSTK501 Datasheet - Page 12

• Manufacturer Part Number: ATSTK501
• Description: ADAPTER KIT FOR 64PIN AVR MCU
• Manufacturer: Atmel

Specifications of ATSTK501

• Accessory Type: STK500 Expansion Module
• Processor To Be Evaluated: ATmega103 and ATmega128
• Data Bus Width: 8 bit
• Interface Type: RS-232
• For Use With/related Products: 64-pin megaAVR Devices
• For Use With: ATADAPCAN01 - EXTENSION CAN ADD-ON TO STK500/1ATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q1167170; STK501; STK501

Using the STK501 Top Module
2.5
2-6
External SRAM
Figure 2-8. Connecting JTAG ICE to the STK501
The STK501 contains a footprint where an external SRAM device can be mounted.
Make sure the SRAM device has the same voltage range as the rest of the design.
Caution: Special care should be taken if a low voltage SRAM is used, since High-volt-
age Programming requires a programming voltage higher than 4.5V. Low-voltage
SRAM may be damaged if High-voltage Programming of the target AVR is done.
Table 2-1 shows a list of recommended SRAM devices, and typical range of operation.
It is important that the SRAM device is soldered with the correct orientation as shown in
Figure 2-9.
Note:
Figure 2-9. Pin1 on SRAM Footprint and Pinout
The SRAM is disabled by default. To enable SRAM support, put a jumper
between the SRAMEN and GND pin on the PORTG/AUX connector.
AVR
GND
VCC
WE
CS
A0
A1
A2
A3
D0
D1
D2
D3
A4
A5
A6
A7
®
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
STK501 User Guide
128Kx8
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
A16
A15
A14
A13
OE
D7
D6
GND
VCC
D5
D4
A12
A11
A10
A9
A8