ATTINY24-20SSUR Atmel, ATTINY24-20SSUR Datasheet - Page 223

• Manufacturer Part Number: ATTINY24-20SSUR
• Description: MCU AVR 2KB FLASH 20MHZ 14SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY24-20SSUR

• 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): 2.7 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

26. Errata
26.1
26.1.1
26.1.2
26.1.3
26.1.4
8006K–AVR–10/10
ATtiny24
Rev. D – E
Rev. C
Rev. B
Rev. A
The revision letters in this section refer to the revision of the corresponding ATtiny24/44/84
device.
No known errata.
•
1. Reading EEPROM when system clock frequency is below 900 kHz may not work
•
•
1. EEPROM read from application code does not work in Lock Bit Mode 3
2. Reading EEPROM when system clock frequency is below 900 kHz may not work
Reading EEPROM when system clock frequency is below 900 kHz may not work
EEPROM read from application code does not work in Lock Bit Mode 3
Reading EEPROM when system clock frequency is below 900 kHz may not work
Reading data from the EEPROM at system clock frequency below 900 kHz may result in
wrong data read.
Problem Fix/Work around
Avoid using the EEPROM at clock frequency below 900 kHz.
When the Memory Lock Bits LB2 and LB1 are programmed to mode 3, EEPROM read does
not work from the application code.
Problem Fix/Work around
Do not set Lock Bit Protection Mode 3 when the application code needs to read from
EEPROM.
Reading data from the EEPROM at system clock frequency below 900 kHz may result in
wrong data read.
Problem Fix/Work around
Avoid using the EEPROM at clock frequency below 900 kHz.
Not sampled.
ATtiny24/44/84
223