ATMEGA48A-PU Atmel, ATMEGA48A-PU Datasheet - Page 549

• Manufacturer Part Number: ATMEGA48A-PU
• Description: IC MCU AVR 4K FLASH 28PDIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA48A-PU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Controller Family/series: Atmega
• No. Of I/o's: 23
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 512Byte
• Cpu Speed: 20MHz
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

33.3
8271C–AVR–08/10
28M1
Note:
0.4 Ref
(4x)
Package Drawing Contact:
[e-mail]
b
2
3
1
K
The terminal #1 ID is a Laser-marked Feature.
BOTTOM VIEW
Pin 1 ID
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
TOP VIEW
D2
D
R 0.20
TITLE
28M1, 28-pad, 4 x 4 x 1.0 mm Body, Lead Pitch 0.45 mm,
2.4 x 2.4 mm Exposed Pad, Thermally Enhanced
Plastic Very Thin Quad Flat No Lead Package (VQFN)
e
1
2
3
0.45
E2
E
L
A
SYMBOL
A
A1
b
C
D
D2
E
E2
e
L
y
K
GPC
COMMON DIMENSIONS
0.80
0.00
0.17
3.95
2.35
3.95
2.35
0.35
0.00
0.20
MIN
(Unit of Measure = mm)
SIDE VIEW
C
A1
ZBV
y
0.20 REF
NOM
0.90
0.02
0.22
4.00
2.40
4.00
2.40
0.45
0.40
DRAWING NO.
–
–
28M1
MAX
1.00
0.05
0.27
4.05
2.45
4.05
2.45
0.45
0.08
–
10/24/08
NOTE
REV.
B
549