參數(shù)資料
型號： SST89V58RD2-33-C-NJE
廠商： Microchip Technology
文件頁數(shù)： 50/92頁
文件大?。?/td> 0K
描述： IC MCU 8BIT 40KB FLASH 44PLCC
標(biāo)準(zhǔn)包裝： 26
系列： FlashFlex®
核心處理器： 8051
芯體尺寸： 8-位
速度： 33MHz
連通性： EBI/EMI，SPI，UART/USART
外圍設(shè)備： 欠壓檢測/復(fù)位，POR，WDT
輸入/輸出數(shù)： 36
程序存儲器容量： 32KB（32K x 8）
程序存儲器類型： 閃存
EEPROM 大小： 8K x 8
RAM 容量： 1K x 8
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 3.6 V
振蕩器型： 外部
工作溫度： 0°C ~ 70°C
封裝/外殼： 44-LCC（J 形引線）
包裝： 管件
2011 Silicon Storage Technology, Inc.
DS25087A
10/11
54
FlashFlex MCU
SST89V54RD2/RD / SST89V58RD2/RD
Not Recommended for New Designs
A Microchip Technology Company
Programmable Counter Array
The Programmable Counter Array (PCA) present on the SST89V5xRD2/RD is a special 16-bit timer
that has five 16-bit capture/compare modules. Each of the modules can be programmed to operate in
one of four modes: rising and/or falling edge capture, software timer, high-speed output, or pulse width
modulator. The 5th module can be programmed as a Watchdog Timer in addition to the other four
modes. Each module has a pin associated with it in port 1. Module 0 is connected to P1.3 (CEX0),
module 1 to P1[4] (CEX1), module 2 to P1[5] (CEX2), module 3 to P1[6] (CEX3), and module 4 to
P1[7] (CEX4). PCA configuration is shown in Figure 24.
PCA Overview
PCA provides more timing capabilities with less CPU intervention than the standard timer/counter. Its
advantages include reduced software overhead and improved accuracy.
The PCA consists of a dedicated timer/counter which serves as the time base for an array of five com-
pare/capture modules. Figure 24 shows a block diagram of the PCA. External events associated with
modules are shared with corresponding Port 1 pins. Modules not using the port pins can still be used
for standard I/O.
Each of the five modules can be programmed in any of the following modes:
Rising and/or falling edge capture
Software timer
High speed output
Watchdog Timer (Module 4 only)
Pulse Width Modulator (PWM)
PCA Timer/Counter
The PCA timer is a free-running 16-bit timer consisting of registers CH and CL (the high and low bytes
of the count values). The PCA timer is common time base for all five modules and can be programmed
to run at: 1/6 the oscillator frequency, 1/2 the oscillator frequency, Timer 0 overflow, or the input on the
ECI pin (P1.2). The timer/counter source is determined from the CPS1 and CPS0 bits in the CMOD
SFR as follows (see “PCA Timer/Counter Mode Register (CMOD)” on page 27):
Table 17: PCA Timer/Counter Source
CPS1
CPS0
12 Clock Mode
6 Clock Mode
00
fOSC /12
fOSC /6
01
fOSC /4
fOSC /2
1
0
Timer 0 overflow
1
External clock at ECI pin
(maximum rate = fOSC /8)
External clock at ECI pin
(maximum rate = fOSC /4)
T0-0.0 25087
相關(guān)PDF資料
PDF描述
VI-21L-IX-S CONVERTER MOD DC/DC 28V 75W
SST89V54RD2-33-C-NJE IC MCU 8BIT 24KB FLASH 44PLCC
MMCX-P-178B/U CONN MMCX PLUG STRAIGHT RG178
VE-23T-IX-S CONVERTER MOD DC/DC 6.5V 75W
MMCX-P-FHSB CONN MMCX PLUG STRAIGHT FHSB
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SST89V58RD2-33-C-NJE1 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU
SST89V58RD2-33-C-NJF2 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU
SST89V58RD2-33-C-PI 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU
SST89V58RD2-33-C-PIE1 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU
SST89V58RD2-33-C-PIF2 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

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

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

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*