FT51BQ-R datasheet(24/43 Pages) FTDI

Il numero della parte	FT51BQ-R

Spiegazioni elettronici	Supports DMA operation

PDF	43 Pages

Scroll/Zoom	100%

Produttore elettronici	FTDI [Future Technology Devices International Ltd.]

Homepage	http://www.ftdichip.com

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FT51A Advanced MCU with 8051 Compatible Core IC Datasheet

Version 1.5

Doc ument N o.: FT _000877

C learance N o.: FT DI#420

4.5 Digital IO AC Characteristics

Please refer to the DIO section of the FT51A Programmer’s Guide on how to enable / disable the Schmitt

trigger, control the slew rate and determine drive strength.

Parameter

Value

load

Input

Timings

(ns)

0.004pF

tplh

tphl

1.32pF

tplh

tphl

Schmitt Trigger

1.25

0.98

2.48

2.13

1.27

1.08

2.51

2.24

Output

Timings

(ns)

Slew Rate

= Normal

6pF

tplh

tphl

120pF

tplh

tphl

Drive Strength

3.33

2.37

13.34

11.13

3.13

2.21

8.22

6.78

3.02

2.15

6.46

5.32

2.95

2.10

5.57

4.59

Output

Timings

(ns)

Slew Rate

= Slow

6pF

tplh

tphl

120pF

tplh

tphl

Drive Strength

3.33

2.37

13.34

1.13

3.33

2.37

9.24

7.81

3.33

2.4

7.80

6.61

3.32

2.39

7.05

5.97

Table 4-9 – Digital IO AC Characteristics

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