參數(shù)資料
型號: DS87C550-QCL+
廠商: Maxim Integrated Products
文件頁數(shù): 31/49頁
文件大?。?/td> 0K
描述: IC MCU EPROM ADC/PWM HS 68-PLCC
標(biāo)準(zhǔn)包裝: 18
系列: 87C
核心處理器: 8051
芯體尺寸: 8-位
速度: 33MHz
連通性: EBI/EMI,SIO,UART/USART
外圍設(shè)備: 電源故障復(fù)位,PWM,WDT
輸入/輸出數(shù): 55
程序存儲器容量: 8KB(8K x 8)
程序存儲器類型: OTP
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 6x10b
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 68-LCC(J 形引線)
包裝: 管件
DS87C550 EPROM High-Speed Microcontroller with ADC and PWM
37 of 49
AC ELECTRICAL CHARACTERISTICS
33MHz
VARIABLE CLOCK
PARAMETER
SYMBOL
MIN
MAX
MIN
MAX
UNITS
Oscillator Freq. (Ext. Osc.)
(Ext. Crystal)
1/tCLCL
0
1
33
0
1
33
MHz
ALE Pulse Width
tLHLL
40
0.375 tMCS -5
ns
Port 0 Address Valid to ALE Low
tAVLL
9
0.125 tMCS -5
ns
Address Hold after ALE Low
tLLAX1
10
0.125 tMCS -5
ns
ALE Low to Valid Instruction In
tLLIV
60
0.625
tMCS -20
ns
ALE Low to PSEN Low
tLLPL
10
0.125 tMCS -5
ns
PSEN Pulse Width
tPLPH
55
0.5 tMCS -5
ns
PSEN Low to Valid Instruction In
tPLIV
41
0.5tMCS
-20
ns
Input Instruction Hold after PSEN
tPXIX
0
ns
Input Instruction Float after PSEN
tPXIZ
26
0.25tMCS -5
ns
Port 0 Address to Valid Instruction
In
tAVIV
77
0.75tMCS -
20
ns
Port 2 Address to Valid Instruction
In
tAVIV2
81
0.875
tMCS -25
ns
PSEN Low to Address Float
tPLAZ
0
ns
NOTES FOR AC ELECTRICAL CHARACTERISTICS
§ tMCS is a time period related to the machine cycle clock and the processor’s input clock frequency. Its value is
highlighted in the table “STRETCH VALUE TIMING” for all possible settings of the 4X/ 2X and CD1:0 bits.
The default condition is CD1 = 1 and CD0 = 0, where 4X/ 2X is disregarded.
§ All parameters apply to both commercial and industrial temperature operation unless otherwise noted.
Electrical characterizations are not 100% tested but are guaranteed by design and characterization.
§ All signals characterized with load capacitance of 80 pF except Port 0, ALE, PSEN , RD and WR with 100
pF.
§ Interfacing to memory devices with float times (turn off times) over 25 ns may cause contention. This will not
damage the parts, but will cause an increase in operating current.
§ Specifications assume a 50% duty cycle for the oscillator. Port 2 and ALE timing will change in relation to
duty cycle variation.
相關(guān)PDF資料
PDF描述
DS89C450-ENL IC MCU FLASH 64KB 33MHZ 44-TQFP
DS9034PCI IC SRAM NV TIMEKEEPING POWERCAP
DS9034PCX PCM W/CRYSTAL NV SRAM SNAP-ON
DS9092L+ IBUTTON PROBE PANEL MOUNT W/LED
DS9092T# IBTN PROBE W/TACTILE FEEDBACK
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS87C550-QCL+ 功能描述:IC MCU EPROM ADC/PWM HS 68-PLCC RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:87C 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:260 系列:73S12xx 核心處理器:80515 芯體尺寸:8-位 速度:24MHz 連通性:I²C,智能卡,UART/USART,USB 外圍設(shè)備:LED,POR,WDT 輸入/輸出數(shù):9 程序存儲器容量:64KB(64K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-VFQFN 裸露焊盤 包裝:管件
DS87C550-QCW 制造商:Maxim Integrated Products 功能描述:DS87C550 WAIVERED FOR LS & MARKING - Rail/Tube
DS87C550-QNL 功能描述:IC MCU EPROM ADC/PWM HS 68-PLCC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:87C 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:260 系列:73S12xx 核心處理器:80515 芯體尺寸:8-位 速度:24MHz 連通性:I²C,智能卡,UART/USART,USB 外圍設(shè)備:LED,POR,WDT 輸入/輸出數(shù):9 程序存儲器容量:64KB(64K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-VFQFN 裸露焊盤 包裝:管件
DS88 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
DS8800 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual Voltage Level Translator