ATtiny87 Atmel Corporation, ATtiny87 Datasheet - Page 288
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ATtiny87
Manufacturer Part Number
ATtiny87
Description
Manufacturer
Atmel Corporation
Specifications of ATtiny87
Flash (kbytes)
8 Kbytes
Pin Count
20
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
Hardware Qtouch Acquisition
No
Max I/o Pins
16
Ext Interrupts
16
Usb Speed
No
Usb Interface
No
Spi
2
Twi (i2c)
1
Uart
1
Lin
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
3
Input Capture Channels
1
Pwm Channels
9
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATtiny87-A15MZ
Manufacturer:
Atmel
Quantity:
12 127
Company:
Part Number:
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Atmel
Quantity:
3 722
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Part Number:
ATtiny87-A15XZ
Manufacturer:
Atmel
Quantity:
8 895
Part Number:
ATtiny87-SU
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
ATtiny87-SUR
Manufacturer:
Atmel
Quantity:
323
Company:
Part Number:
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Manufacturer:
ATMEL
Quantity:
8 272
iv
ATtiny87/ATtiny167
16 ISRC – Current Source ........................................................................ 188
17 ADC – Analog to Digital Converter ..................................................... 191
18 AnaComp - Analog Comparator ......................................................... 211
19 DebugWIRE On-chip Debug System .................................................. 215
20 Flash Programming ............................................................................. 217
21 Memory Programming ......................................................................... 225
15.6
16.1
16.2
16.3
17.1
17.2
17.3
17.4
17.5
17.6
17.7
17.8
17.9
17.10
17.11
18.1
18.2
19.1
19.2
19.3
19.4
19.5
19.6
20.1
20.2
21.1
21.2
21.3
Register Description .....................................................................................180
Features ........................................................................................................188
Typical applications .......................................................................................188
Control Register .............................................................................................190
Features ........................................................................................................191
Overview ........................................................................................................191
Operation .......................................................................................................193
Starting a Conversion ....................................................................................194
Prescaling and Conversion Timing ................................................................195
Changing Channel or Reference Selection ...................................................197
ADC Noise Canceler .....................................................................................198
ADC Conversion Result .................................................................................202
Temperature Measurement ...........................................................................203
Internal Voltage Reference Output ................................................................203
Register Description ......................................................................................205
Analog Comparator Inputs .............................................................................211
Register Description ......................................................................................213
Features ........................................................................................................215
Overview ........................................................................................................215
Physical Interface ..........................................................................................215
Software Break Points ...................................................................................216
Limitations of DebugWIRE ............................................................................216
DebugWIRE Related Register in I/O Memory ...............................................216
Self-Programming the Flash ..........................................................................217
Addressing the Flash During Self-Programming ...........................................218
Program and Data Memory Lock Bits ............................................................225
Fuse Bits ........................................................................................................225
Signature Bytes .............................................................................................227
8265B–AVR–09/10