Section 23 Electrical Characteristics; Absolute Maximum Ratings - Hitachi SH7709S Hardware Manual

Section 23 Electrical Characteristics

23.1

Absolute Maximum Ratings

Table 23.1 shows the absolute maximum ratings.
Table 23.1 Absolute Maximum Ratings
Item
Power supply voltage (I/O)
Power supply voltage (internal) Vcc
Input voltage (except port L)
Input voltage (port L)
Analog power-supply voltage
Analog input voltage
Operating temperature
Storage temperature
Caution: Operating the chip in excess of the absolute maximum rating may result in permanent
damage.
• Order of turning on 1.7 V/1.8 V/1.9 V/2.0 V power (Vcc, Vcc-PLL1, Vcc-PLL2, Vcc-RTC)
and 3.3 V power (VccQ, AVcc):
1. First turn on the 3.3 V power, then turn on the 1.7 V/1.8 V/1.9 V/2.0 V power within 100
µs. This interval should be as short as possible.
2. Until voltage is applied to all power supplies and a low level is input at the RESETP pin,
internal circuits remain unsettled, and so pin states are also undefined. The system design
must ensure that these undefined states do not cause erroneous system operation.
Waveforms at power-on are shown in the following figure.
Symbol Rating
VccQ –0.3 to 4.2
–0.3 to 2.5
Vcc – PLL1
Vcc – PLL2
Vcc – RTC
Vin –0.3 to VccQ + 0.3
Vin –0.3 to AVcc + 0.3
AVcc –0.3 to 4.6
V –0.3 to AVcc + 0.3
AN
Topr –20 to 75
Tstr –55 to 125
Unit
V
V
V
V
V
V
°C
°C
661