ATTINY45-20XUR Atmel, ATTINY45-20XUR Datasheet - Page 24

• Manufacturer Part Number: ATTINY45-20XUR
• Description: MCU AVR 4KB FLASH 20MHZ 8TSSOP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY45-20XUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 6
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9. Datasheet Revision History
9.1
9.2
9.3
24
Rev. 2586M-07/10
Rev. 2586L-06/10
Rev. 2586K-01/08
ATtiny25/45/85
1. Clarified
2. Added Ordering Codes -SN and -SNR for ATtiny25 extended temperature.
1. Added:
2. Updated:
1. Updated Document Template.
2. Added Sections:
3. Updated Sections:
– TSSOP for ATtiny45 in
–
–
– Extended temperature in
– Tape & reel part numbers in Ordering Information, in
–
–
–
–
–
–
–
–
–
– Bit syntax throughout the datasheet, e.g. from CS02:0 to CS0[2:0].
–
–
–
–
–
–
Information in
Section 7.4 “8X” on page 17
Table 6-11, “Capacitance of Low-Frequency Crystal Oscillator,” on page 29
Figure 22-36 on page 196
plots for Bandgap Voltage vs. V
11
“Features” on page
Section 8.4.2 “Code Example” on page 46
“PCMSK – Pin Change Mask Register” on page
“TCCR1 – Timer/Counter1 Control Register” on page 92
Timer/Counter1 Control Register” on page
Section 20.3.2 “Calibration Bytes” on page
Table 20-11, “Minimum Wait Delay Before Writing the Next Flash or EEPROM
Location,” on page
Table 20-16, “High-voltage Serial Programming Instruction Set for ATtiny25/45/85,”
on page 163
Table 21-1, “DC Characteristics. T
Table 21-11, “Serial Programming Characteristics, T
5.5V (Unless Otherwise Noted),” on page
“Data Retention” on page 6
“Low Level Interrupt” on page 51
“Device Signature Imprint Table” on page 153
“Internal PLL for Fast Peripheral Clock Generation - clkPCK” on page 24
“System Clock and Clock Options” on page 23
“Internal PLL in ATtiny15 Compatibility Mode” on page 24
and
Section 6.4 “Clock Output Buffer” on page
Section 6.2 “ATtiny45” on page 12
Section 6.2 “ATtiny45” on page
157, value for t
1, removed Preliminary from ATtiny25
“Features” on page
Section 6.1 “ATtiny25” on page
and
Figure 22-37 on page
CC
WD_ERASE
A
and Temperature
= -40°C to +85°C,” on page
175, added t
93, COM bit descriptions clarified
1, Pinout
154, frequencies (8 MHz, 6.4 MHz)
12, and Packaging Information in
54, Bit Descriptions
32.
A
Section 6.1 “ATtiny25” on page
Figure 1-1 on page
196, Typical Characteristics
= -40°C to +85°C, V
SLIV
and
11, Ordering Information
“GTCCR – General
166, notes adjusted
2, Ordering
CC
2586M–AVR–07/10
= 1.8 -