AT90PWM1-16MU Atmel, AT90PWM1-16MU Datasheet - Page 224

• Manufacturer Part Number: AT90PWM1-16MU
• Description: IC AVR PWM 8KB FLASH 16MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® 90PWM Lightingr

Specifications of AT90PWM1-16MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 19
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 32-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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AT90PWM1
Table 79. Pin Name Mapping
Table 80. Pin Values Used to Enter Programming Mode
Table 81. XA1 and XA0 Coding
Table 82. Command Byte Bit Coding
Signal Name in
Programming Mode
RDY/BSY
OE
WR
BS1
XA0
XA1
PAGEL
BS2
DATA
XA1
0
0
1
1
Command Byte
1000 0000
0100 0000
0010 0000
0001 0000
PAGEL
XA1
XA0
BS1
Pin
XA0
0
1
0
1
Action when XTAL1 is Pulsed
Load Flash or EEPROM Address (High or low address byte determined by
BS1).
Load Data (High or Low data byte for Flash determined by BS1).
Load Command
No Action, Idle
Pin Name
Command Executed
Chip Erase
Write Fuse bits
Write Lock bits
Write Flash
PB[7:0]
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PE2
Prog_enable[3]
Prog_enable[2]
Prog_enable[1]
Prog_enable[0]
Symbol
I/O
I/O
O
I
I
I
I
I
I
I
Function
0: Device is busy programming, 1: Device is
ready for new command
Output Enable (Active low)
Write Pulse (Active low)
Byte Select 1 (“0” selects Low byte, “1” selects
High byte)
XTAL Action Bit 0
XTAL Action Bit 1
Program memory and EEPROM Data Page
Load
Byte Select 2 (“0” selects Low byte, “1” selects
2’nd High byte)
Bi-directional Data bus (Output when OE is
low)
Value
0
0
0
0
4378C–AVR–09/08