ATTINY24-15SSZ Atmel, ATTINY24-15SSZ Datasheet - Page 171

• Manufacturer Part Number: ATTINY24-15SSZ
• Description: MCU AVR 2K FLASH 15MHZ 14-SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY24-15SSZ

• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Speed: 16MHz
• Number Of I /o: 12
• Eeprom Size: 128 x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Program Memory Size: 2KB (2K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: USI
• Core Size: 8-Bit
• Cpu Family: ATtiny
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 16MHz
• Interface Type: SPI/UART
• Total Internal Ram Size: 128Byte
• # I/os (max): 12
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 14
• Package Type: SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

21.8
21.8.1
21.8.2
7701D–AVR–09/10
High-voltage Serial Programming Algorithm
Enter High-voltage Serial Programming Mode
Considerations for Efficient Programming
To program and verify the Atmel
ming mode, the following sequence is recommended (see instruction formats in
on page
The following algorithm puts the device in High-voltage Serial Programming mode:
1. Apply 4.5 - 5.5V between V
2. Set RESET pin to “0” and toggle SCI at least six times.
3. Set the Prog_enable pins listed in
4. Apply V
5. Shortly after latching the Prog_enable signature, the device will actively output data on
6. Wait at least 50 µs before giving any serial instructions on SDI/SII.
Table 21-14. High-voltage Reset Characteristics
The loaded command and address are retained in the device during programming. For effi-
cient programming, the following should be considered.
• The command needs only be loaded once when writing or reading multiple memory
• Skip writing the data value 0xFF that is the contents of the entire EEPROM (unless the
• Address high byte only needs be loaded before programming or reading a new 256-word
Supply Voltage
V
4.5V
5.5V
locations.
EESAVE fuse is programmed) and flash after a chip erase.
window in flash or 256-byte EEPROM. This consideration also applies to reading signature
bytes.
CC
100 ns.
t
has been latched.
the Prog_enable[2]/SDO pin, and the resulting drive contention may increase the
power consumption. To minimize this drive contention, release the Prog_enable[2] pin
after t
HVRST
174):
HVRST
after the High-voltage has been applied to ensure the Prog_enable signature
HVRST
has elapsed.
- 5.5V to RESET. Keep the Prog_enable pins unchanged for at least
RESET Pin High-voltage Threshold
Atmel ATtiny24/44/84 [Preliminary]
CC
®
and GND.
V
AVR
11.5V
11.5V
HVRST
Table 21-13 on page 170
®
ATtiny24/44/84 in the high-voltage serial program-
Minimum High-voltage Period for
to “000” and wait at least
Latching Prog_enable
t
100ns
100ns
HVRST
Table 21-15
171