ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 404

• Manufacturer Part Number: ATMEGA128RFA1-ZU
• Description: IC AVR MCU 2.4GHZ XCEIVER 64QFN
• Manufacturer: Atmel
• Series: ATMEGAr

Specifications of ATMEGA128RFA1-ZU

• Frequency: 2.4GHz
• Data Rate - Maximum: 2Mbps
• Modulation Or Protocol: 802.15.4 Zigbee
• Applications: General Purpose
• Power - Output: 3.5dBm
• Sensitivity: -100dBm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Current - Receiving: 12.5mA
• Current - Transmitting: 14.5mA
• Data Interface: PCB, Surface Mount
• Memory Size: 128kB Flash, 4kB EEPROM, 16kB RAM
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VFQFN, Exposed Pad
• Rf Ic Case Style: QFN
• No. Of Pins: 64
• Supply Voltage Range: 1.8V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Svhc: No SVHC (15-Dec-2010)
• Rohs Compliant: Yes
• Processor Series: ATMEGA128x
• Core: AVR8
• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 128 KB
• Data Ram Size: 16 KB
• Interface Type: JTAG
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 38
• Number Of Timers: 6
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVR128RFA1-EK1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

404
ATmega128RFA1
• Bit 2 – Res - Reserved Bit
This bit is reserved for future use. A read access always will return zero. A write access
does not modify the content.
• Bit 1:0 – TWPS1:0 - TWI Prescaler Bits
These bits can be read and written and control the bit rate of the prescaler.
Table 25-9 TWPS Register Bits
Register Bits
Register Bits
TWPS1:0
Value
Value
0xC0
0xC8
0x58
0x60
0x68
0x70
0x78
0x80
0x88
0x90
0x98
0xA0
0xA8
0xB0
0xB8
0xF8
0x00
Description
returned.
Data byte has been received; NOT ACK has
been returned.
Own SLA+W has been received; ACK has
been returned.
Arbitration lost in SLA+R/W as Master; own
SLA+W has been received; ACK has been
returned.
General call address has been received;
ACK has been returned.
Arbitration lost in SLA+R/W as Master;
general call address has been received;
ACK has been returned.
Previously addressed with own SLA+W; data
has been received; ACK has been returned.
Previously addressed with own SLA+W; data
has been received; NOT ACK has been
returned.
Previously addressed with general call; data
has been received; ACK has been returned.
Previously addressed with general call; data
has been received; NOT ACK has been
returned.
A STOP condition or repeated START
condition has been received while still
addressed as Slave.
Own SLA+R has been received; ACK has
been returned.
Arbitration lost in SLA+R/W as Master; own
SLA+R has been received; ACK has been
returned.
Data byte in TWDR has been transmitted;
ACK has been received.
Data byte in TWDR has been transmitted;
NO ACK has been received.
Last data byte in TWDR has been
transmitted (TWEA = 0); ACK has been
received.
No relevant state information available;
TWINT = 0.
Description
1
8266A-MCU Wireless-12/09