M41T62 datasheet(31/40 Pages) STMICROELECTRONICS

Nome de Peças	M41T62

Descrição Electrónicos	Serial Access Real-Time Clock with Alarms

PDF	40 Pages

Scroll/Zoom	100%

Fabricante Electrônico	STMICROELECTRONICS [STMicroelectronics]

Página de início	http://www.st.com

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31 / 40 page

M41T62/63/64/65

DC and AC parameters

31/40

DC and AC parameters

This section summarizes the operating and measurement conditions, as well as the DC and

AC characteristics of the device. The parameters in the following DC and AC Characteristic

tables are derived from tests performed under the Measurement Conditions listed in the

relevant tables. Designers should check that the operating conditions in their projects match

the measurement conditions when using the quoted parameters.

Figure 23.

AC measurement I/O waveform

Figure 24.

Crystal isolation example

Substrate pad should be tied to VSS.

Table 12.

Operating and AC measurement conditions(1)

Output Hi-Z is defined as the point where data is no longer driven.

Parameter

M41T6x

Supply voltage (VCC)

1.3V to 4.4V

Ambient operating temperature (TA)

–40 to 85°C

Load capacitance (CL)

50pF

Input rise and fall times

≤5ns

Input pulse voltages

0.2VCC to 0.8 VCC

Input and output timing ref. voltages

0.3VCC to 0.7 VCC

AI02568

0.8VCC

0.2VCC

0.7VCC

0.3VCC

AI09127

Crystal

GND

Local Grounding Plane

(Layer 2)

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