Datasheet > 85C51SND3BX03

85C51SND3BX03

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
爱特美尔 - ATMEL		解码器编码器
页数	文件大小	规格书
263页	3620K
描述
Single-Chip Digital Audio Decoder - Encoder with USB 2.0 Interface

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数据手册

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85C51SND3BX03 数据手册

Signal

Name

Alternate

Function

Type Description

OCLK

DCLK

DDAT

DSEL

Port 4

P4.6:0

I/O

P4 is a 7-bit bidirectional I/O port with internal pull-ups.

NFCE1/SMLCK

NFCE2/SMINS

NFCE3/SMCE

LRD/LDE

SDR

LCS

SCS

Port 5

P5.3:0

I/O

P5 is a 4-bit bidirectional I/O port with internal pull-ups.

LA0/LRS

SA0

LWR/LRW

SWR

Table 3. Timer 0 and Timer 1 Signal Description

Signal

Name

Alternate

Function

Type Description

Timer 0 Gate Input

INT0 serves as external run control for timer 0, when selected by

GATE0 bit in TCON register.

P3.2

RTS

SCK

INT0

External Interrupt 0

INT0 input sets IE0 in the TCON register. If bit IT0 in this register is set,

bit IE0 is set by a falling edge on INT0. If bit IT0 is cleared, bit IE0 is set

by a low level on INT0.

Timer 1 Gate Input

INT1 serves as external run control for timer 1, when selected by

GATE1 bit in TCON register.

P3.3

CTS

INT1

External Interrupt 1

INT1 input sets IE1 in the TCON register. If bit IT1 in this register is set,

bit IE1 is set by a falling edge on INT1. If bit IT1 is cleared, bit IE1 is set

by a low level on INT1.

Timer 0 External Clock Input

When timer 0 operates as a counter, a falling edge on the T0 pin

increments the count.

P3.4

AT85C51SND3Bx

7632A–MP3–03/06

1...5 6 789 10 11...263

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