FT51BQ-R datasheet(9/43 Pages) FTDI

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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

2.5 Pin Configuration Description

Pin Nos.

Name

Type

Description

48 pin

44 pin

32 pin

28 pin

VCC5V

POWER

Input

5 V (or 3.3 V) supply to IC

VCCIO

POWER

Input

1.8V – 3.3V supply for the IO

pins. This option is ONLY

available on the 44 & 48 pin

packages. A fixed 3.3V supply

from the internal regulator is

supplied to the IO pins for

the 28 and 32 pin packages

VOUT3V

POWER

Output

3.3V regulator output. May be

used to power VCCIO pin.

Note that a 100nF capacitor

should be connected to

VOUT3V3 for proper

operation. This output can

also be used to power

external circuitry up to a

maximum current rating of

50mA (typ).

8, 17, 18,

19, 28,

41, 49*

15,16,

14,15,

33*

7, 16

GND

POWER

Input

Ground

Table 2-1 – Power and Ground

* Pin 49 of WQFN48 or pin 33 of WQFN32 is the exposed centre pad under the packaged IC. Connect to

GND.

** If VCC5V is supplied by 3.3V then VOUT3V3 must also be driven by the same 3.3V source.

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