M29F400B-70N6TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

M29F400B-70N6TR

4 Mbit (512Kb x8 or 256Kb x16, Boot Block)Single Supply Flash Memory

STMicroelectronics 

M29F400T, M29F400B

Table 17A. Data Polling and Toggle Bit AC Characteristics (1)

(TA = 0 to 70°C, –40 to 85°C or –40 to 125°C)

M29F400T / M29F400B

Symbol

Parameter

-55

High Speed

Interface

-70

Unit

Standard

Interface

Min Max Min Max

Write Enable High to DQ7 Valid (Program, W Controlled)

tWHQ7V

Write Enable High to DQ7 Valid (Chip Erase, W Controlled)

10

2400

10

2400 µs

1.0

30

1.0

30 sec

Chip Enable High to DQ7 Valid (Program, E Controlled)

tEHQ7V

Chip Enable High to DQ7 Valid (Chip Erase, E Controlled)

10

2400

10

2400 µs

1.0

30

1.0

30 sec

tQ7VQV Q7 Valid to Output Valid (Data Polling)

30

30

ns

Write Enable High to Output Valid (Program)

tWHQV

Write Enable High to Output Valid (Chip Erase)

10

2400

10

2400 µs

1.0

30

1.0

30

sec

Chip Enable High to Output Valid (Program)

tEHQV

Chip Enable High to Output Valid (Chip Erase)

Note: 1. All other timings are defined in Read AC Characteristics table.

10

2400

10

2400 µs

1.0

30

1.0

30

sec

Table 17B. Data Polling and Toggle Bit AC Characteristics (1)

(TA = 0 to 70°C, –40 to 85°C or –40 to 125°C)

M29F400T / M29F400B

Symbol

Parameter

-90

Standard

Interface

-120

Unit

Standard

Interface

Min Max Min Max

Write Enable High to DQ7 Valid (Program, W Controlled)

tWHQ7V

Write Enable High to DQ7 Valid (Chip Erase, W Controlled)

10

2400

10

2400 µs

1.0

30

1.0

30 sec

Chip Enable High to DQ7 Valid (Program, E Controlled)

tEHQ7V

Chip Enable High to DQ7 Valid (Chip Erase, E Controlled)

10

2400

10

2400 µs

1.0

30

1.0

30 sec

tQ7VQV Q7 Valid to Output Valid (Data Polling)

Write Enable High to Output Valid (Program)

tWHQV

Write Enable High to Output Valid (Chip Erase)

35

50

ns

10

2400

10

2400 µs

1.0

30

1.0

30

sec

Chip Enable High to Output Valid (Program)

tEHQV

Chip Enable High to Output Valid (Chip Erase)

Note: 1. All other timings are defined in Read AC Characteristics table.

10

2400

10

2400 µs

1.0

30

1.0

30

sec

24/34

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