- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄3763 > XR88C681CJ-F (Exar Corporation)IC UART CMOS DUAL 44PLCC PDF資料下載
參數(shù)資料
| 型號： | XR88C681CJ-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 69/101頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC UART CMOS DUAL 44PLCC |
| 標(biāo)準(zhǔn)包裝： | 27 |
| 特點： | * |
| 通道數(shù)： | 2，DUART |
| FIFO's： | 1 字節(jié)，3 字節(jié) |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 帶并行端口： | 是 |
| 帶CMOS： | 是 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-LCC（J 形引線） |
| 供應(yīng)商設(shè)備封裝： | 44-PLCC（16.59x16.59） |
| 包裝： | 管件 |
| 其它名稱： | 1016-1327-5 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁當(dāng)前第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁
XR88C681
7
Rev. 2.11
44 PLCC
40 PDIP,
CDIP
28 PDIP
Symbol
Type
Description
38
34
25
RESET
I
Master Reset (Active High).
Asserting this input clears in-
ternal registers, SR, ISR, IMR, OPR, OPCR, and initializes
the IVR to 0F16. Asserting this input also stops the Counter/
Timer, puts OP0 - OP7 in the high state, and places both
serial channels in the inactive state with TXDA and TXDB
outputs marking (high).
39
35
26
-CS
I
Chip Select (Active Low).
The data bus is tri-stated when
-CS is “high.” Data transfers between the CPU and the
DUART via D0 - D7 are enabled when -CS is “l(fā)ow”.
40
36
27
IP2
(C/T_EX)
I
Input 2. (General Purpose Input).
This input pin can also
be programmed to function as the “Counter/Timer external
clock” input (C/T_EX).
41
37
IP6
(RXCB)
I
Input 6 (I-Mode).
General Purpose Input pin. This input pin
can also be programmed to function as the External Receiv-
er Clock for Channel B (RXCB).
41
37
-IACK
I
Interrupt Acknowledge Input (Z-Mode).
Active Low.
This input is the CPU’s response to the Interrupt Request
issued by the DUART device. When the CPU asserts this
input, it indicates that the DUART’s interrupt request is about
to be serviced, and that the very next cycle will be an Inter-
rupt Acknowledge Cycle. The DUART will respond to the
CPU’s Interrupt Acknowledge by placing the contents of the
Interrupt Vector Register (IVR) on the data bus (D0 - D7).
42
38
IP5
(TXCB)
I
Input 5 (I-Mode).
General Purpose Input pin. This pin can
also be configured to function as the external clock input for
the Transmitter of Channel B (TXCB).
42
38
IEO
(Z-Mode)
O
Interrupt Enable Output (Z-Mode).
Active High.
This output pin is normally “high”. However, either of the
following two conditions can cause this output pin to be ne-
gated (toggled “l(fā)ow”).
1. If the IEI (Interrupt Enable Input) pin is “l(fā)ow”. If IEO is
“l(fā)ow” because of the IEI pin, IEO will toggle “high” once
the IEI has toggled “high”.
2. The DUART has issued an Interrupt Request to the CPU
(-INTR pin is toggled “l(fā)ow”). If IEO is “l(fā)ow” because the
DUART has requested an Interrupt, then IEO will remain
“l(fā)ow”, throughout the Interrupt Service Routine, until the
CPU has invoked the “” command.
43
39
IP4
(RXCA)
I
Input 4 (I-Mode).
General Purpose Input pin. This input pin
can also be configured to function as the external clock input
for the Receiver of Channel A (RXCA).
43
39
IEI
(Z-Mode)
I
Interrupt Enable Input (Z-Mode).
Active High.
If this active-high input is at a logic “high”, the DUART is ca-
pable of generating all non-masked Interrupt Requests to the
CPU. If this input is at a logic “l(fā)ow”, the DUART is inhibited
from generating any Interrupt Requests to the CPU.
44
40
28
VCC
PWR
Most Positive Power Supply.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XR16M2550IM48-F | IC UART FIFO 16B 1.8V DL 48TQFP |
| ST16C552CJ68-F | IC UART FIFO PAR 16B DUAL 68PLCC |
| XR16L2752IJ-F | IC UART FIFO 64B DUAL 44PLCC |
| ST16C552IJ68-F | IC UART FIFO 16B DUAL 68PLCC |
| XR88C92IJ-F | IC UART FIFO DUAL 44PLCC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR88C681CJTR-F | 功能描述:UART 接口集成電路 Dual Channel UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| XR88C681CN/40 | 制造商:EXAR 制造商全稱:EXAR 功能描述:CMOS DUAL CHANNEL UART (DUART) |
| XR88C681CP/28 | 制造商:EXAR 制造商全稱:EXAR 功能描述:CMOS DUAL CHANNEL UART (DUART) |
| XR88C681CP/28-F | 功能描述:UART 接口集成電路 Dual Channel UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| XR88C681CP/40 | 功能描述:UART 接口集成電路 Dual Channel UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。