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參數(shù)資料
| 型號(hào)： | ID82C50A |
| 廠商： | HARRIS SEMICONDUCTOR |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | CMOS Asynchronous Communications Element |
| 中文描述： | 1 CHANNEL(S), 625K bps, SERIAL COMM CONTROLLER, CDIP40 |
| 文件頁數(shù)： | 5/21頁 |
| 文件大?。?/td> | 101K |
| 代理商： | ID82C50A |
5
Block Diagram
V
CC
40
H
V
CC
: +5V positive power supply pin. A 0.1
μ
A decoupling capacitor from V
CC
(pin
40) to GND (pin 20) is recommended.
CS0, CS1,
CS2
12,13,
14
I
I
H, H,
L
CHIP SELECT: The Chip Select inputs act as enable signals for the write (DOSTR,
DOSTR) and read (DlSTR, DlSTR) input signals. The Chip Select inputs are latched
by the ADS input.
NC
29
Do Not Connect
CSOUT
24
O
H
CHIP SELECT OUT: When ACTIVE (high), this pin indicates that the chip has been
selected by active CS0, CS1, and CS2 inputs. No data transfer can be initiated until
CSOUT is a logic 1, ACTIVE (high).
DDIS
23
O
H
DRIVER DISABLE: This output is INACTIVE (low) when the CPU is reading data
from the 82C50A. An ACTIVE (high) Dells output can be used to disable an external
transceiver when the CPU is reading data.
ADS
25
I
L
ADDRESS STROBE: When ACTIVE (low), ADS latches the Register Select (A0,
A1, A2) and Chip Select (CS0, CS1, CS2) inputs. An active ADS is required when
the Register Select pins are not stable for the duration of the read or write operation,
multiplexed mode. If not required, the ADS input should be tied low, non-multiplexed
mode.
RCLK
9
I
This input is the 16X Baud Rate Clock for the receiver section of the 82C50A. This
input may be provided from the BAUDOUT output or an external clock.
Pin Description
(Continued)
SYMBOL
PIN
NUMBER
TYPE
ACTIVE
LEVEL
DESCRIPTION
DISTR
DISTR
DOSTR
DOSTR
DDIS
CSOUT
XTAL1
XTAL2
(22)
(21)
(19)
(18)
(23)
(24)
(16)
(17)
A0
A1
A2
CS0
CS1
CS2
ADS
MR
(28)
(27)
(26)
(12)
(13)
(14)
(25)
(35)
D7 - D0
(1 - 8)
(40)
(20)
DATA BUS
BUFFER
RECEIVER SHIFT
RECEIVER
POWER
SUPPLY
SELECT
&
CONTROL
LOGIC
(10)
SIN
(9)
RCLK
(15)
BAUDOUT
(11)
SOUT
(32)
(33)
(34)
(31)
RTS
DTR
OUT1
OUT2
CTS
DSR
DCD
RI
(36)
(37)
(38)
(39)
RECEIVER TIMING
& CONTROL
TRANSMITTER
TIMING & CONTROL
TRANSMITTER
SHIFT REGISTER
MODEM
CONTROL
LOGIC
RECEIVER BUFFER
REGISTER
LINE CONTROL
REGISTER
BAUD RATE
GENERATOR
DIVISOR
LATCH (LS)
DIVISOR
LATCH (MS)
LINE STATUS
REGISTER
TRANSMITTER
HOLDING REGISTER
MODEM CONTROL
REGISTER
MODEM STATUS
REGISTER
INTERRUPT ENABLE
REGISTER
INTERRUPT IO
REGISTER
SCRATCH
REGISTER
INTERRUPT
CONTROL
LOGIC
(30)
INTRPT
+5V
GND
82C50A
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| ID82C52 | CMOS Serial Controller Interface |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ID82C50A-5 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS Asynchronous Communications Element |
| ID82C52 | 功能描述:UART 接口集成電路 PERIPH UART/BRG 5V 16MHZ 28CDIP IND 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 |
| ID82C52/+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:UART |
| ID82C54 | 功能描述:計(jì)時(shí)器和支持產(chǎn)品 PERIPH PRG-CNTR 5V 8MHZ 24CDIP IND RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| ID82C54/+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Timer Circuit |
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