Atmel ATmega48A User Manual

551
8271D–AVR–05/11
ATmega48A/PA/88A/PA/168A/PA/328/P
34.4 32M1-A
2325 Orchard Parkway
San Jose, CA 95131
TITLE
DRAWING NO.
R
REV.
32M1-A, 32-pad, 5 x 5 x 1.0 mm Body, Lead Pitch 0.50 mm,
E
32M1-A
5/25/06
3.10 mm Exposed Pad, Micro Lead Frame Package (MLF)
COMMON DIMENSIONS
(Unit of Measure = mm)
SYMBOL
MIN
NOM
MAX
NOTE
D1
D
E1
E
e
b
A3
A2
A1
A
D2
E2
0.08
C
L
1
2
3
P
P
0
1
2
3
A 0.80 0.90 1.00
A1 – 0.02 0.05
A2 – 0.65 1.00
A3 0.20 REF
b 0.18 0.23 0.30
D
D1
D2 2.95 3.10 3.25
4.90 5.00 5.10
4.70 4.75 4.80
4.70 4.75 4.80
4.90 5.00 5.10
E
E1
E2 2.95 3.10 3.25
e 0.50 BSC
L 0.30 0.40 0.50
P – – 0.60
– – 12
o
Note: JEDEC Standard MO-220, Fig. 2 (Anvil Singulation), VHHD-2.
TOP VIEW
SIDE VIEW
BOTTOM VIEW
0
Pin 1 ID
Pin #1 Notch
(0.20 R)
K 0.20 – –
K
K

Atmel ATmega48A Specifications

General

Architecture	8-bit AVR
Flash Memory	4 KB
SRAM	512 Bytes
EEPROM	256 Bytes
Clock Speed	20 MHz
I/O Pins	23
ADC Channels	6
Operating Voltage	1.8 - 5.5 V
PWM Channels	6
USART	1
SPI	1
I2C	1
Package Type	QFN, MLF
Temperature Range	-40°C to 85°C
Packages	28-pin PDIP, 32-pin TQFP, 28-pad QFN/MLF