STSAFE-A110 datasheet(24/36 Pages) STMICROELECTRONICS

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Electrical characteristics

STSAFE-A110

24/36

DS13039 Rev 1

Electrical characteristics

This section summarizes the operating and measurement conditions, and the DC and AC

characteristics of the device. The parameters in the DC and AC characteristic tables that

follow are derived from tests performed under the measurement conditions summarized in

the relevant tables. Users should check that the operating conditions in their circuit match

the measurement conditions when relying on the quoted parameters.

5.1

Absolute maximum ratings

Operation of STSAFE-A110 at ranges above the absolute maximum specifications may

cause permanent device damage. Exposure to absolute maximum rating conditions for

extended periods may affect device reliability.

5.2

Power supply

The circuit includes a DC/DC converter that supplies the internal logic and memories with a

low operating voltage. The device can operate with external voltages of 1.62 V to 5.5 V

nominally, through GND and VCC pins.

In order to filter spurious spikes on the supply voltage pins, decoupling capacitors (100 nF

and 10 µF) must be added to the interface device as shown on Figure 13. They must be

wired between GND and VCC pins.

Note:

For each device, the 100 nF decoupling capacitor must be located as close as possible to

the device (within a few millimeters). If there are multiple power supplies, a 10 µF filtering

capacitor must be located on each one.

Table 2. Absolute maximum ratings

Name

Description

Conditions

Min.

Max.

Units

VCC ABS Absolute maximum power supply Pins: VCC

–0.3

VIO

Input or output voltage relative to

ground

–0.3

VCC ABS + 0.3

VESD

Electrostatic Discharge Voltage

according to EIA/JEDEC JESD22-

A114E specification

Human Body Model.

All pins according to

specification

±5000

VLU

Max over voltage for Latch-up

Immunity according to

EIA/JEDEC - JESD78

specification

Class 1 / Level A

Maximum operating

temperature

1.5 × VCC ABS

Ambient operating temperature

–40

105

°C

TSTG

Storage temperature

–65

150

°C

TLEAD

Lead temperature during soldering(1)

1. SO8N and UFDFPN8 lead temperature during soldering shall be compliant with JEDEC Std J-STD-020D

(for small body, Sn-Pb or Pb assembly), ST ECOPACK® 7191395 specification, and the European

directive on Restrictions on Hazardous Substances (ROHS directive 2011/65/EU, July 2011).

-260

°C

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