ST10F276Z5 datasheet(178/239 Pages) STMICROELECTRONICS

178 / 239 page

Electrical characteristics

ST10F276Z5

178/239

Electrical characteristics

23.1

Absolute maximum ratings

Stresses above those listed under “Absolute Maximum Ratings” may cause permanent

damage to the device. This is a stress rating only and functional operation of the device at

these or any other conditions above those indicated in the operational sections of this

specification is not implied. Exposure to absolute maximum rating conditions for extended

periods may affect device reliability. During overload conditions (VIN > VDD or VIN < VSS) the

voltage on pins with respect to ground (VSS) must not exceed the values defined by the

absolute maximum ratings.

During Power-on and Power-off transients (including Standby entering/exiting phases), the

relationships between voltages applied to the device and the main VDD must always be

respected. In particular, power-on and power-off of VAREF must be coherent with the VDD

transient, in order to avoid undesired current injection through the on-chip protection diodes.

23.2

Recommended operating conditions

Table 88.

Absolute maximum ratings

Symbol

Parameter

Value

Unit

VDD

Voltage on VDD pins with respect to ground (VSS)

- 0.3 to +6.5

VSTBY

Voltage on VSTBY pin with respect to ground (VSS)

VAREF

Voltage on VAREF pin with respect to ground (VSS)

- 0.3 to VDD + 0.3

VAGND

Voltage on VAGND pin with respect to ground (VSS)VSS

VIO

Voltage on any pin with respect to ground (VSS)

- 0.5 to VDD + 0.5

IOV

Input current on any pin during overload condition

± 10

ITOV

Absolute sum of all input currents during overload condition

| 75 |

TST

Storage temperature

- 65 to +150

°C

ESD

ESD susceptibility (human body model)

2000

Table 89.

Recommended operating conditions

Symbol

Parameter

Min.

Max.

Unit

VDD

Operating supply voltage

4.5

5.5

VSTBY

Operating standby supply voltage(1)

The value of the VSTBY voltage is specified in the range 4.5 - 5.5 V. Nevertheless, it is acceptable to

exceed the upper limit (up to 6.0 V) for a maximum of 100 hrs over the global 300000 hrs, representing the

lifetime of the device (about 30 years). On the other hand, it is possible to exceed the lower limit (down to

4.0 V) whenever RTC and 32 kHz on-chip oscillator amplifier are turned off (only Standby RAM powered

through VSTBY pin in Standby mode). When VSTBY voltage is lower than main VDD, the input section of

VSTBY/EA pin can generate a spurious static consumption on VDD power supply (in the range of tenth of

1mA).

VAREF

Operating analog reference voltage(2)

For details on operating conditions concerning the usage of A/D converter, refer to Section 23.7.

VDD

Ambient temperature under bias

–40

+125

°C

Junction temperature under bias

+150

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