MR20H40VDCR Просмотр технического описания (PDF) - Extech Instruments Corporation.

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производитель

MR20H40VDCR

NVRAM 4Mb 3.3V 512Kx8 SPI

Extech Instruments Corporation. 

MR20H40 / MR25H40

TIMING SPECIFICATIONS

Capacitance

Table 10 – Capacitance

Symbol

CIn

CI/O

Parameter

Control input capacitance 1

Input/Output capacitance 1

Typical

-

-

Notes:

1. ƒ = 1.0 MHz, dV = 3.0 V, TA = 25 °C, periodically sampled rather than 100% tested.

AC Measurement Conditions

Max

6

8

Unit

pF

pF

Table 11 – AC Measurement Conditions

Parameter

Logic input timing measurement reference level

Logic output timing measurement reference level

Logic input pulse levels

Input rise/fall time

Output load for low and high impedance parameters

Output load for all other timing parameters

Value

1.5

Unit

V

1.5

V

0 or 3.0

V

2

ns

See Figure 12

See Figure 13

Figure 12 – Output Load for Impedance Parameter Measurements

Output

ZD= 50 Ω

RL = 50 Ω

VL = 1.5 V

Figure 13 – Output Load for all Other Parameter Measurements

3.3 V

Output

435 Ω

590 Ω

30 pF

Copyright © Everspin Technologies 2014

17

MR20H40 / MR25H40 Revision 11, 8/2014

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