M45PE40 datasheet(34/46 Pages) NUMONYX

Part #	M45PE40

Description	4 Mbit, low voltage, Page-Erasable Serial Flash memory with byte-alterability and a 50 MHz SPI bus interface

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DC and AC parameters

M45PE40

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10

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 Characteristic tables that

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

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

match the measurement conditions when relying on the quoted parameters.

1.

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

Figure 19.

AC measurement I/O waveform

Table 8.

Operating conditions

Symbol

Parameter

Min.

Max.

Unit

VCC

Supply voltage

2.7

3.6

V

TA

Ambient operating temperature

–40

85

°C

Table 9.

AC measurement conditions

Symbol

Parameter

Min.

Max.

Unit

CL

Load capacitance

30

pF

Input rise and fall times

5

ns

Input pulse voltages

0.2VCC to 0.8VCC

V

Input and output timing reference voltages

0.3VCC to 0.7VCC

V

Table 10.

Capacitance(1)

1.

Sampled only, not 100% tested, at TA=25°C and a frequency of 20 MHz.

Symbol

Parameter

Test condition

Min.

Max.

Unit

COUT

Output capacitance (Q)

VOUT = 0 V

8

pF

CIN

Input capacitance (other pins)

VIN = 0 V

6

pF

AI00825B

0.8VCC

0.2VCC

0.7VCC

0.3VCC

Input and Output

Timing Reference Levels

Input Levels

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