ATTINY167-15XD Atmel, ATTINY167-15XD Datasheet - Page 149

• Manufacturer Part Number: ATTINY167-15XD
• Description: MCU AVR 16K FLASH 15MHZ 20-TSSOP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY167-15XD

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, LIN, SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 20-TSSOP
• Processor Series: ATTINY1x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Maximum Clock Frequency: 16 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• For Use With: ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

14. USI – Universal Serial Interface
14.1
14.2
7728G–AVR–06/10
Features
Overview
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•
•
•
•
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The Universal Serial Interface, or USI, provides the basic hardware resources needed for
serial communication. Combined with a minimum of control software, the USI allows signifi-
cantly higher transfer rates and uses less code space than solutions based on software only.
Interrupts are included to minimize the processor load.
A simplified block diagram of the USI is shown on
pins, refer to
and I/O pins, are shown in bold. The device-specific I/O Register and bit locations are listed in
the
Figure 14-1. Universal Serial Interface, Block Diagram
The 8-bit USI Data Register is directly accessible via the data bus and contains the incoming
and outgoing data. The register has no buffering so the data must be read as quickly as possi-
ble to ensure that no data is lost. The USI Data Register is a serial shift register and the most
significant bit that is the output of the serial shift register is connected to one of two output pins
depending of the wire mode configuration.
Two-wire Synchronous Data Transfer (Master or Slave)
Three-wire Synchronous Data Transfer (Master or Slave)
Data Received Interrupt
Wakeup from Idle Mode
In Two-wire Mode: Wake-up from All Sleep Modes, Including Power-down Mode
Two-wire Start Condition Detector with Interrupt Capability
“Register Descriptions” on page
“Pin Configuration” on page
USIDR
USIDB
USISR
USICR
2
4-bit Counter
156.
3
2
1
0
3
2
1
0
D Q
LE
5. CPU accessible I/O Registers, including I/O bits
[1]
TIM0 COMP
0
1
Figure 14-1
Two-wire Clock
Control Unit
ATtiny87/ATtiny167
For the actual placement of I/O
CLOCK
HOLD
DO
DI/SDA
USCK/SCL
(Output only)
(Input/Open Drain)
(Input/Open Drain)
149