M28W640FCB datasheet(34/77 Pages) STMICROELECTRONICS

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DC and AC parameters

M28W640FCT, M28W640FCB

34/77

DC and AC parameters

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

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

follow, are derived from tests performed under the Measurement Conditions summarized in

Table 13: Operating and AC measurement conditions. Designers should check that the

operating conditions in their circuit match the measurement conditions when relying on the

quoted parameters.

Figure 6.

AC measurement I/O waveform

Table 13.

Operating and AC measurement conditions

Parameter

M28W640FCT, M28W640FCB

Units

Min

Max

Min

Max

Min

Max

Min

Max

VDD supply voltage

2.7

3.6

2.7

3.6

2.7

3.6

2.7

3.6

VDDQ supply voltage

(VDDQ ≤VDD)

2.73.6

1.65

3.6

Ambient Operating

Temperature

–40

°C

Load capacitance (CL)

505050

Input Rise and Fall Times

Input pulse voltages

0 to VDDQ

Input and Output Timing

Ref. voltages

VDDQ/2

AI00610

VDDQ

VDDQ/2

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