參數(shù)資料
型號(hào): HPC36400EV20
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 微控制器/微處理器
英文描述: CAP 0.7PF 25V +/-0.1PF THIN-FILM SN90/PB10/NI 30PPM TR-7-PA
中文描述: 16-BIT, 20 MHz, MICROCONTROLLER, PQCC68
封裝: PLASTIC, LCC-68
文件頁數(shù): 3/30頁
文件大?。?/td> 362K
代理商: HPC36400EV20
Pin Descriptions (Continued)
POWER SUPPLIES
VCC1 VCC2
Positive Power Supply (two pins)
GND
Ground for On-Chip Logic
DGND
Ground for Output Buffers
Note
There are multiple electrically connected VCC pins on the chip GND
and DGND are electrically isolated All VCC pins and all ground pins
must be used
CLOCK PINS
CKI
The System Clock Input
CKO
The System Clock Output (Inversion of CKI)
Pins CKI and CKO are usually connected across an external
crystal
CK2
Clock Output (CKI divided by 2)
OTHER PINS
WO
This is an active low open drain output which
signals an illegal situation has been detected
by the WATCHDOG logic
ST1
Bus Cycle Status Output indicates first op-
code fetch
ST2
Bus Cycle Status Output indicates machine
states (skip and interrupt)
RESET
Active low input that forces the chip to restart
and sets the ports in a TRI-STATE mode
RDYHLD
Has two uses selected by a software bit
This pin is either a READY input to extend
the bus cycle for slower memories or a
HOLD-REQUEST input to put the bus in a
high impedance state for external DMA pur-
poses In the second case the I4 pin can be-
come the READY input
Connection Diagrams
Plastic and Leaded Chip Carriers
TLDD10422 – 18
Top View
See NS Package Number V68A
11
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HPC36400EVHG2 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High-Performance Communications MicroController
HPC36400EVHG20 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High-Performance Communications MicroController
HPC36400L20 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microcontroller
HPC36400T20 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microcontroller
HPC36400U20 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microcontroller