參數(shù)資料
型號: SST89V54RD-33-C-PIE
廠商: Microchip Technology
文件頁數(shù): 20/92頁
文件大小: 0K
描述: IC MCU 8BIT 24KB FLASH 40PDIP
標(biāo)準(zhǔn)包裝: 9
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): 32
程序存儲器容量: 16KB(16K 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: 40-DIP(0.600",15.24mm)
包裝: 管件
2011 Silicon Storage Technology, Inc.
DS25087A
10/11
27
FlashFlex MCU
SST89V54RD2/RD / SST89V58RD2/RD
Not Recommended for New Designs
A Microchip Technology Company
Symbol
Function
CIDL
Counter Idle Control:
0: Programs the PCA Counter to continue functioning during idle mode
1: Programs the PCA Counter to be gated off during idle
WDTE
Watchdog Timer Enable:
0: Disables Watchdog Timer function on PCA module 4
1: Enables Watchdog Timer function on PCA module 4
-
Not implemented, reserved for future use.
Note: User should not write ‘1’s to reserved bits. The value read from a reserved bit is indeterminate.
CPS1
PCA Count Pulse Select bit 1
CPS0
PCA Count Pulse Select bit 2
ECF
PCA Enable Counter Overflow interrupt:
0: Disables the CF bit in CCON
1: Enables CF bit in CCON to generate an interrupt
PCA Timer/Counter Mode Register1 (CMOD)
Location
76543210
Reset
Value
D9H
CIDL
WDTE
-
CPS1
CPS0
ECF
00xxx000b
1. Not bit addressable
CPS1
CPS0
Selected
PCA Input1
1. fOSC = oscillator frequency
00
0
Internal clock, fOSC/6 in 6 clock mode (fOSC/12 in 12 clock mode)
01
1
Internal clock, fOSC/2 in 6 clock mode (fOSC/4 in 12 clock mode)
10
2
Timer 0 overflow
11
3
External clock at ECI/P1.2 pin
(max. rate = fOSC/4 in 6 clock mode, fOSC/8 in 12 clock mode)
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