ATTINY24A-SSUR Atmel, ATTINY24A-SSUR Datasheet - Page 166

• Manufacturer Part Number: ATTINY24A-SSUR
• Description: MCU AVR 2KB FLASH 20MHZ 14SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY24A-SSUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 12
• Program Memory Size: 2KB (1K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 128 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: *
• Package: 14SOIC W
• Device Core: AVR
• Family Name: ATtiny
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 12
• Interface Type: SPI/USI
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

19.6
19.7
166
High-voltage Serial Programming
High-Voltage Serial Programming Algorithm
ATtiny24A/44A/84A
After data is loaded to the page buffer, program the EEPROM page, see
165.
This section describes how to program and verify Flash Program memory, EEPROM Data mem-
ory, Lock bits and Fuse bits in the ATtiny24A/44A/84A.
Figure 19-3.
Table 19-13. Pin Name Mapping
The minimum period for the Serial Clock Input (SCI) during High-voltage Serial Programming is
220 ns.
Table 19-14. Pin Values Used to Enter Programming Mode
To program and verify the ATtiny24A/44A/84A in the High-voltage Serial Programming mode,
the following sequence is recommended (See instruction formats in
Signal Name in High-voltage
Serial Programming Mode
SDI
SII
SDO
SCI
Pin
PA0
PA1
PA2
High-voltage Serial Programming
SCI
+11.5 - 12.5V
Symbol
Prog_enable[0]
Prog_enable[1]
Prog_enable[2]
PB3
PB0
PA2:0
GND
Pin Name
PA6
PA5
PA4
PB0
(RESET)
I/O
O
I
I
I
VCC
PA4
PA5
PA6
Function
Serial Data Input
Serial Instruction Input
Serial Data Output
Serial Clock Input (min. 220ns period)
+4.5 - 5.5V
Table 19-16 on page
SDO
SII
SDI
Figure 19-2 on page
Value
8183C–AVR–03/11
0
0
0
170):