ATMEGA48A-MMHR Atmel, ATMEGA48A-MMHR Datasheet - Page 550

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

Specifications of ATMEGA48A-MMHR

• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 20MHz
• Number Of I /o: 23
• Eeprom Size: 256 x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Program Memory Size: 4KB (4K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: I²C, SPI, UART/USART
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

33.4
8271C–AVR–08/10
32M1-A
R
P
2325 Orchard Parkway
San Jose, CA 95131
Note: JEDEC Standard MO-220, Fig. 2 (Anvil Singulation), VHHD-2.
P
1
2
3
b
BOTTOM VIEW
K
Pin 1 ID
TOP VIEW
Pin #1 Notch
(0.20 R)
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
D1
D2
D
TITLE
32M1-A, 32-pad, 5 x 5 x 1.0 mm Body, Lead Pitch 0.50 mm,
3.10 mm Exposed Pad, Micro Lead Frame Package (MLF)
e
1
2
3
E2
E1
L
E
K
A2
A
0
A1
A3
SIDE VIEW
SYMBOL
0.08 C
0
A
A1
A2
A3
b
D
D1
D2
E
E1
E2
e
L
P
K
0.80
0.18
4.90
4.70
2.95
4.90
4.70
2.95
0.30
COMMON DIMENSIONS
0.20
MIN
(Unit of Measure = mm)
–
–
–
–
0.20 REF
0.50 BSC
NOM
0.90
0.02
0.65
0.23
5.00
4.75
3.10
5.00
4.75
3.10
0.40
–
–
–
DRAWING NO.
MAX
1.00
0.05
1.00
0.30
5.10
4.80
3.25
5.10
4.80
3.25
0.50
0.60
12 o
–
32M1-A
NOTE
5/25/06
REV.
E
550