FT221XS-R datasheet(4/45 Pages) FTDI

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FT221XS-R 数据表(PDF) 4 Page - Future Technology Devices International Ltd.

部件名	FT221XS-R

功能描述	Future Technology Devices International Ltd.

PDF	45 Pages

Scroll/Zoom	100%

制造商	FTDI [Future Technology Devices International Ltd.]

网页	http://www.ftdichip.com

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FT221X USB 8-BIT SPI/FT1248 IC Datasheet

Version 1.3

Document No.: FT_000630 Clearance No.: FTDI# 263

2 FT221X Block Diagram

3.3 Volt LDO

Regulator

1.8 Volt LDO

Regulator

USB

Transceiver

with

Integrated

1.5k pullups

and battery

charge

detection

USB DPLL

Internal

12MHz

Oscillator

X4 Clock

Multiplier

Serial Interface

Engine

(SIE)

USB

Protocol Engine

FT1248

Controller

Reset

Generator

FIFO TX Buffer

(512 bytes)

FIFO RX Buffer

(512 bytes)

Internal MTP

Memory

48MHz

GND

RESET#

To USB Transceiver Cell

3V3OUT

VCCIO

3V3OUT

VCC

USBDP

USBDM

1V8 Internal

Core Supply

MIOSI[0]

MIOSI[1]

MIOSI[2]

MIOSI[3]

MIOSI[4]

MIOSI[5]

MIOSI[6]

MISOI[7]

CLK

CS#

MISO

CBUS3

Figure 2.1 FT221X Block Diagram

For a description of each function please refer to Section 4.

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