Datasheet > DP83901AV

DP83901AV

更新时间： 2025-07-15 19:17:47

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
64页	954K
描述
供电电流(mA):110mA;功能:控制器;元器件封装:68-PLCC;

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技术参数
数据手册

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DP83901AV 技术参数

生命周期：	Obsolete	零件包装代码：	LCC
包装说明：	QCCJ,	针数：	68
Reach Compliance Code：	unknown	HTS代码：	8542.31.00.01
风险等级：	5.8	地址总线宽度：	16
边界扫描：	NO	最大时钟频率：	20 MHz
数据编码/解码方法：	NRZ; BIPH-LEVEL(MANCHESTER)	最大数据传输速率：	1.25 MBps
外部数据总线宽度：	16	JESD-30 代码：	S-PQCC-J68
长度：	25.13 mm	低功率模式：	NO
串行 I/O 数：	2	端子数量：	68
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	QCCJ
封装形状：	SQUARE	封装形式：	CHIP CARRIER
座面最大高度：	4.57 mm	最大供电电压：	5.25 V
最小供电电压：	4.75 V	标称供电电压：	5 V
表面贴装：	YES	技术：	CMOS
温度等级：	COMMERCIAL	端子形式：	J BEND
端子节距：	1.27 mm	端子位置：	QUAD
宽度：	25.13 mm	uPs/uCs/外围集成电路类型：	SERIAL IO/COMMUNICATION CONTROLLER, LAN
Base Number Matches：	1

DP83901AV 数据手册

Pin Description (Continued)

Pin No

BUS INTERFACE PINS (Continued)

39 PRQ/ADS1 O, Z PORT REQUEST/ADDRESS STROBE 1

Pin Name

I/O

Description

32-BIT MODE: If LAS is set in the Data Configuration Register, this line is programmed

as ADS1. It is used to strobe addresses A16–A31 into external latches. (A16–A31 are the

fixed addresses stored in RSAR0, RSAR1). ADS1 will remain at TRI-STATE until BACK is

received.

16-BIT MODE: If LAS is not set in the Data Configuration Register, this line is programmed as

PRQ and is used for Remote DMA Transfers. The SNIC initiates a single remote DMA read or

write operation by asserting this pin. In this mode PRQ will be a standard logic output.

Note: This line will power up as TRI-STATE until the Data Configuration Register is programmed.

BACK

BUS ACKNOWLEDGE: Bus Acknowledge is an active high signal indicating that the CPU has

granted the bus to the SNIC. If immediate bus access is desired, BREQ should be tied to BACK.

Tying BACK to V will result in a deadlock.

BREQ

BUS REQUEST: Bus Request is an active high signal used to request the bus for DMA transfers.

This signal is automatically generated when the FIFO needs servicing.

RESET

RESET: Reset is active low and places the SNIC in a reset immediately, no packets are

transmitted or received by the SNIC until STA bit is set. Affects Command Register, Interrupt

Mask Register, Data Configuration Register and Transmit Configuration Register. The SNIC will

execute reset within 10 BSCK cycles and TXC cycles.

INT

INTERRUPT: Indicates that the SNIC requires CPU attention after reception transmission or

completion of DMA transfers. The interrupt is cleared by writing to the ISR (Interrupt Service

WACK

WRITE ACKNOWLEDGE: Issued from system to SNIC to indicate that data has been written to

the external latch. The SNIC will begin a write cycle to place the data in local memory.

NETWORK INTERFACE PINS

42,

TRANSMIT OUTPUT: Differential driver which sends the encoded data to the transceiver. The

outputs are source followers which require 270X pulldown resistors.

TEST

FACTORY TEST INPUT: Used to check the chip’s internal functions. Tied low during normal

operation.

a b

MODE SELECT: When high, Transmit and Transmit are the same voltage in the idle state.

SEL

When low, Transmit is positive with respect to Transmit in the idle state, at the transformer’s

primary.

EXTERNAL OSCILLATOR INPUT

GND/X2

GROUND/X2: This in should normally be connected to ground. It is possible to use a crystal

oscillator using X1 and GND/X2 if certain precautions are taken. Contact National

Semiconductor for more information.

SNISEL

FACTORY TEST INPUT: For normal operation tied to V . When low enables the ENDEC

module to be tested independently of the SNIC module.

60,

RECEIVE INPUT: Differential receive input pair from the transceiver.

62,

COLLISION INPUT: Differential collision pair input from the transceiver.

1 2 3 456 7 8...64

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与DP83901AV相关器件

型号	品牌	获取价格	描述	数据表
DP83901V	TI	获取价格	1 CHANNEL(S), 10Mbps, LOCAL AREA NETWORK CONTROLLER, PQCC68, PLASTIC, LCC-68
DP83901VX	TI	获取价格	1 CHANNEL(S), 10Mbps, LOCAL AREA NETWORK CONTROLLER, PQCC68, PLASTIC, LCC-68
DP83902A	NSC	获取价格	ST-NICTM Serial Network Interface Controller for Twisted Pair
DP83902AMDC	NSC	获取价格	IC,LAN NODE CONTROLLER,CMOS,DIE
DP83902AMDC	TI	获取价格	IC,LAN NODE CONTROLLER,CMOS,DIE
DP83902AMWC	NSC	获取价格	IC,LAN NODE CONTROLLER,CMOS,WAFER
DP83902AMWC	TI	获取价格	IC,LAN NODE CONTROLLER,CMOS,WAFER
DP83902AV	NSC	获取价格	ST-NICTM Serial Network Interface Controller for Twisted Pair
DP83902AV/NOPB	TI	获取价格	IC CTRLR SER NETWORK IN 84PLCC
DP83902AVF	NSC	获取价格	ST-NICTM Serial Network Interface Controller for Twisted Pair

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