參數(shù)資料
型號(hào)： DS89C21TMX
元件分類(lèi)： 收發(fā)器
英文描述： Transceiver
中文描述： 收發(fā)器
文件頁(yè)數(shù)： 44/48頁(yè)
文件大?。?/td> 934K
代理商： DS89C21TMX
DS89C430/DS89C440/DS89C450 Ultra-High-Speed Flash Microcontrollers
44 of 48
Stop Mode
Stop mode disables all circuits within the processor. All on-chip clocks, timers, and serial port communication are
stopped, and no processing is possible.
Stop mode is invoked by setting the stop bit (PCON.1) to logic 1. The processor enters stop mode on the
instruction that sets the bit. The processor can exit stop mode by using any of the six external interrupts that are
enabled.
An external reset through the RST pin unconditionally exits the processor from stop mode. If the BGS bit is set to
logic 1, the bandgap provides a reset while in stop mode if V
CC
should drop below the V
RST
level. If BGS is 0, no
reset is generated if V
CC
drops below V
RST
.
When the stop mode is removed, the processor waits for 65,536 clock cycles for the internal flash memory to warm
up before starting normal execution. Also, the processor waits for the crystal warmup period if it is not using the
ring oscillator.
Serial I/O
The microcontroller provides a serial port (UART) that is identical to the 80C52. In addition, it includes a second
hardware serial port that is a full duplicate of the standard one. This port optionally uses pins P1.2 (RXD1) and
P1.3 (TXD1) and has duplicate control functions included in new SFR locations.
Both ports can operate simultaneously but can be at different baud rates or modes. The second serial port has
similar control registers (SCON1 at C0h, SBUF1 at C1h) to the original. The new serial port can only use timer 1 for
timer-generated baud rates.
Control for serial port 0 is provided by the SCON0 register, while its I/O buffer is SBUF0. The registers SCON1 and
SBUF1 provide the same functions for the second serial port. A full description of the use and operation of both
serial ports can be found in the
Ultra-High-Speed Flash Microcontroller User’s Guide.
Instruction Set
All instructions are 100% binary compatible with the industry-standard 8051, and are only different in the number of
machine cycles used for the instructions. There are some special conditions and features to be considered when
analyzing the DS89C430 instruction set. Full details are available in the
Ultra-High-Speed Flash Microcontroller
User’s Guide.
SELECTOR GUIDE
MAX
CLOCK
SPEED
(MHz)
DS89C430
-MNL
-40°C to +85°C
16kB x 8
33
DS89C430-QNL
-40°C to +85°C
16kB x 8
33
DS89C430-ENL
-40°C to +85°C
16kB x 8
33
DS89C440
-MNL
-40°C to +85°C
32kB x 8
33
DS89C440-QNL
-40°C to +85°C
32kB x 8
33
DS89C440-ENL
-40°C to +85°C
32kB x 8
33
DS89C450
-MNL
-40°C to +85°C
64kB x 8
33
DS89C450-QNL
-40°C to +85°C
64kB x 8
33
DS89C450-ENL
-40°C to +85°C
64kB x 8
33
DS89C430
-MNG
-40°C to +85°C
16kB x 8
25
DS89C430-QNG
-40°C to +85°C
16kB x 8
25
DS89C430-ENG
-40°C to +85°C
16kB x 8
25
DS89C440
-MNG
-40°C to +85°C
32kB x 8
25
DS89C440-QNG
-40°C to +85°C
32kB x 8
25
DS89C440-ENG
-40°C to +85°C
32kB x 8
25
DS89C450
-MNG
-40°C to +85°C
64kB x 8
25
DS89C450-QNG
-40°C to +85°C
64kB x 8
25
DS89C450-ENG
-40°C to +85°C
64kB x 8
25
PART
TEMP RANGE
FLASH
MEMORY
SIZE
PIN-PACKAGE
40 PDIP
44 PLCC
44 TQFP
40 PDIP
44 PLCC
44 TQFP
40 PDIP
44 PLCC
44 TQFP
40 PDIP
44 PLCC
44 TQFP
40 PDIP
44 PLCC
44 TQFP
40 PDIP
44 PLCC
44 TQFP
相關(guān)PDF資料
PDF描述
DSDK101 Low-Cost Demo Kit Motherboard
E.FL-LP-040 CABLE ; Connector type A:MFD-Titan; Connector type B:MFD-Titan; Length, lead:5m
E15R8-FREQ-OUT14 CRYSTAL OSCILLATOR, CLOCK, 30 MHz - 200 MHz, ECL OUTPUT
E1L51-AW0A4-05 T-1 3/4 SINGLE COLOR LED, WHITE, 5 mm
E1SBA10-9.8304MTR QUARTZ CRYSTAL RESONATOR, 9.8304 MHz
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS89C21TMX/NOPB 功能描述:RS-422接口集成電路 RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率: 工作電源電壓:5 V 電源電流:35 mA 工作溫度范圍: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-16 封裝:Tube
DS89C386 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Twelve Channel CMOS Differential Line Receiver
DS89C386TMEA 功能描述:總線接收器 RoHS:否 制造商:Texas Instruments 接收機(jī)數(shù)量:4 接收機(jī)信號(hào)類(lèi)型:Differential 接口類(lèi)型:EIA/TIA-422-B, V.11 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-16 封裝:Reel
DS89C386TMEA/NOPB 功能描述:總線接收器 RoHS:否 制造商:Texas Instruments 接收機(jī)數(shù)量:4 接收機(jī)信號(hào)類(lèi)型:Differential 接口類(lèi)型:EIA/TIA-422-B, V.11 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-16 封裝:Reel
DS89C386TMEAX 制造商:Texas Instruments 功能描述:Twelve Receiver RS-422 48-Pin SSOP T/R
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*