Datasheet TC1321 (Microchip) - 4

TC1321 ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Characteristics:
VDD = 2.7V to 5.5V, -40°C  TA  +85°C, VREF = 1.2 V unless otherwise noted.
Symbol Parameter Min Typ Max Unit Test Conditions
CIN Input Capacitance (SDA and SCL pins) — 5 0.4 pF ILEAK I/O Leakage — — ±1.0 µA
Serial Port AC Timing
fSMB SMBus Clock Frequency 10 — 100 kHz tIDLE Bus Free Time Prior to New Transition 4.7 — — µs tH(START) START Condition Hold Time 4.0 — — µs tSU(START) START Condition Setup Time 4.7 — — µs 90% SCL to 10% SDA (for Repeated START Condition) tSU(STOP) STOP Condition Setup Time 4.0 — — µs tH-DATA Data In Hold Time 100 — — ns tSU-DATA Data In Setup Time 100 — — ns tLOW Low Clock Period 4.7 — — µs 10% to 10% tHIGH High Clock Period 4 — — µs 90% to 90% tF SMBus Fall Time — — 300 ns 90% to 10% tR SMBus Rise Time — — 1000 ns 10% to 90% tPOR Power-on Reset Delay — 500 — µs VDD VPOR (Rising Edge)
Note 1:
SDA and SCL must be connected to VDD or VSS.
2:
Measured at VOUT 50 mV referred to VSS to avoid output buffer clipping.
TEMPERATURE CHARACTERISTICS Electrical Specifications:
VDD = 2.7V to 5.5V, -40°C  TA  +85°C, VREF = 1.2V unless otherwise noted.
Parameters Symbol Min Typ Max Units Conditions Temperature Ranges
Operating Temperature Range TA -40 — +85 °C Storage Temperature Range TA -65 — 150 °C
Thermal Package Resistances
Thermal Resistance, 8L SOIC JA — 149.5 — °C/W Thermal Resistance, 8L MSOP JA — 211 — °C/W DS21387C-page 4  2010 Microchip Technology Inc. Document Outline TC1321 10-Bit Digital-to-Analog Converter with Two-Wire Interface 1.0 Electrical Characteristics 2.0 Pin Descriptions TABLE 2-1: Pin Function Table 2.1 External Voltage Reference Input (VREF) 2.2 Bi-Directional Serial Data Input and Output (SDA) 2.3 Serial Clock Input (SCL) 2.4 Supply Power Ground (VSS) 2.5 Output (VOUT) 2.6 No Connection (NC) 2.7 Output (DAC-OUT) 2.8 Positive Power Supply Input (VDD) 3.0 Detailed Description 3.1 Reference Input 3.2 Output Amplifier 3.3 Standby Mode TABLE 3-1: Standby Mode Operation 3.4 SMBus Slave Address FIGURE 3-1: SMBus/I2C Protocols. 4.0 Serial Port Operation TABLE 4-1: TC1321 Serial Bus Conventions 4.1 START Condition (START) 4.2 Address Byte 4.3 Acknowledge (ACK) 4.4 Data Byte 4.5 Stop Condition (STOP) FIGURE 4-1: SMBus/I2CTiming Diagrams. 4.6 Register Set and Programmer’s Model TABLE 4-2: TC1321 Command Set (READ_BYTE and WRITE_BYTE) TABLE 4-3: Configuration Register (CONFIG), 8-Bit, Read/Write TABLE 4-4: Data Register (DATA), 10-Bit, Read/Write 4.7 Register Set Summary TABLE 4-5: TC1321 Register Set Summary 5.0 Packaging Information 5.1 Package Marking Information Appendix A: Revision History Product Identification System Worldwide Sales and Service