參數(shù)資料
型號(hào)： SC80C32XXX-36SV
廠商： ATMEL CORP
元件分類(lèi)： 微控制器/微處理器
英文描述： 8-BIT, 36 MHz, MICROCONTROLLER, CDIP40
封裝： 0.600 INCH, SIDE BRAZED, DIP-40
文件頁(yè)數(shù)： 67/109頁(yè)
文件大?。?/td> 10824K
代理商： SC80C32XXX-36SV
46
ATtiny20 [DATASHEET]
8235E–AVR–03/2013
When reading back a software assigned pin value, a nop instruction must be inserted as indicated in Figure 10-5 on page
46. The out instruction sets the “SYNC LATCH” signal at the positive edge of the clock. In this case, the delay tpd through
the synchronizer is one system clock period.
Figure 10-5. Synchronization when Reading a Software Assigned Pin Value
10.2.5 Digital Input Enable and Sleep Modes
As shown in Figure 10-2 on page 43, the digital input signal can be clamped to ground at the input of the schmitt-trigger.
The signal denoted SLEEP in the figure, is set by the MCU Sleep Controller in Power-down and Standby modes to avoid
high power consumption if some input signals are left floating, or have an analog signal level close to VCC/2.
SLEEP is overridden for port pins enabled as external interrupt pins. If the external interrupt request is not enabled,
SLEEP is active also for these pins. SLEEP is also overridden by various other alternate functions as described in
If a logic high level (“one”) is present on an asynchronous external interrupt pin configured as “Interrupt on Rising Edge,
Falling Edge, or Any Logic Change on Pin” while the external interrupt is not enabled, the corresponding External
Interrupt Flag will be set when resuming from the above mentioned Sleep mode, as the clamping in these sleep mode
produces the requested logic change.
10.2.6 Unconnected Pins
If some pins are unused, it is recommended to ensure that these pins have a defined level. Even though most of the
digital inputs are disabled in the deep sleep modes as described above, floating inputs should be avoided to reduce
current consumption in all other modes where the digital inputs are enabled (Reset, Active mode and Idle mode).
The simplest method to ensure a defined level of an unused pin, is to enable the internal pull-up. In this case, the pull-up
will be disabled during reset. If low power consumption during reset is important, it is recommended to use an external
pull-up or pulldown. Connecting unused pins directly to VCC or GND is not recommended, since this may cause
excessive currents if the pin is accidentally configured as an output.
out PORTx, r16
nop
in r17, PINx
0xFF
0x00
0xFF
SYSTEM CLK
r16
INSTRUCTIONS
SYNC LATCH
PINxn
r17
t
pd
相關(guān)PDF資料
PDF描述
SJ80C32XXX-12SV 8-BIT, 12 MHz, MICROCONTROLLER, CQCC44
S80C52EXXX-20SHXXX:D 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQCC44
SCC9521002-01C 8-BIT, 30 MHz, MICROCONTROLLER, CDIP40
S80C52XXX-12D 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQCC44
S80C32E-40SHXXX:RD 8-BIT, 40 MHz, MICROCONTROLLER, PQCC44
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC80C451ACN64 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:8-Bit Microcontroller
SC80C451AGN64 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:8-Bit Microcontroller
SC80C451CCA68 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless, expanded I/O
SC80C451CCN64 制造商:NXP Semiconductors 功能描述:
SC80C451CGA68 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless, expanded I/O
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

*
*
*