ATTINY48-MUR Atmel, ATTINY48-MUR Datasheet - Page 201

• Manufacturer Part Number: ATTINY48-MUR
• Description: MCU AVR 4KB FLASH 12MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY48-MUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 12MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 28
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8008G–AVR–04/11
Figure 21-7. Serial Programming and Verify
Notes:
When programming the EEPROM, an auto-erase cycle is built into the self-timed programming
operation (in the Serial mode ONLY) and there is no need to first execute the Chip Erase
instruction.
The Chip Erase operation turns the content of every memory location in both the Program and
EEPROM arrays into 0xFF.
Depending on CKSEL fuses, a valid clock must be present. The minimum low and high periods
for the serial clock (SCK) input are defined as follows:
• Minimum low period of serial clock:
• Minimum high period of serial clock:
– When f
– When f
– When f
– When f
1. If the device is clocked by the internal oscillator, it is no need to connect a clock source to the
2. V
CLKI pin.
CC
ck
ck
ck
ck
- 0.3V <
< 12MHz: > 2 CPU clock cycles
>= 12MHz: 3 CPU clock cycles
< 12MHz: > 2 CPU clock cycles
>= 12MHz: 3 CPU clock cycles
MOSI
MISO
SCK
AV
CC
< V
CC
+ 0.3V, however, AV
CLKI
RESET
GND
(1)
CC
should always be within 1.8 – 5.5V
AVCC
VCC
+1.8 - 5.5V
+1.8 - 5.5V
ATtiny48/88
(2)
201