3.2.1 Serial Programming Characteristics

A clarification for the maximum temperature for serial programming, in Appendix A - ATtiny4/5/9/10 Specification at 125°C (ww1.microchip.com/downloads/en/DeviceDoc/8127_125.pdf), has been made.

The maximum temperature for serial programming is lowered.

Figure 1-3. Serial Programming Timing

Table 1-9. Serial Programming Characteristics, T_A = -40°C to 85°C, V_CC = 5V ±5% (Unless Otherwise Noted)


Symbol	Parameter	Min.	Max.	Units
1/t_CLCL	Clock frequency		2	MHz
t_CLCL	Clock period	500		ns
t_CLCH	Clock low pulse width	200		ns
t_CHCH	Clock high pulse width	200		ns
t_IVCH	Data input to clock high setup time	50		ns
t_CHIX	Data input hold time after clock high	100		ns
t_CLOV	Data output valid after clock low time		200	ns