参数资料
型号: DS80C320-ECL+
厂商: Maxim Integrated Products
文件页数: 16/38页
文件大小: 0K
描述: IC MCU HI SPEED 33MHZ 44-TQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 160
系列: 80C
核心处理器: 8051
芯体尺寸: 8-位
速度: 33MHz
连通性: EBI/EMI,SIO,UART/USART
外围设备: 电源故障复位,WDT
输入/输出数: 32
程序存储器类型: ROMless
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 44-TQFP
包装: 托盘
产品目录页面: 703 (CN2011-ZH PDF)
DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers
23 of 38
AC CHARACTERISTICS—DS80C320
33MHz
VARIABLE CLOCK
PARAMETER
SYMBOL
MIN
MAX
MIN
MAX
UNITS
External
Oscillator
0
33
0
33
Oscillator
Frequency
External
Crystal
1/tCLCL
1
33
1
33
MHz
ALE Pulse Width
tLHLL
34
1.5tCLCL-11
ns
Port 0 Address Valid to
ALE Low
tAVLL
4
0.5tCLCL-11
ns
Address Hold After
ALE Low
tLLAX1
2
(Note 5)
0.25tCLCL-5
(Note 5)
ns
Address Hold After
ALE Low for MOVX WR
tLLAX2
6
0.5tCLCL-9
ns
ALE Low to Valid
Instruction In
tLLIV
49
2.5tCLCL-27
ns
ALE Low to PSEN Low
tLLPL
0.5
0.25tCLCL-7
ns
PSEN
Pulse Width
tPLPH
61
2.25tCLCL-7
ns
PSEN
Low to Valid
Instruction In
tPLIV
48
2.25tCLCL-21
ns
Input Instruction Hold
After PSEN
tPXIX
0
ns
Input Instruction Float
After PSEN
tPXIZ
25
tCLCL-5
ns
Port 0 Address to Valid
Instruction In
tAVIV1
64
3tCLCL-27
ns
Port 2 Address to Valid
Instruction In
tAVIV2
73
3.5tCLCL-33
ns
PSEN
Low to Address Float
tPLAZ
(Note 5)
ns
NOTES FOR DS80C320 AC ELECTRICAL CHARACTERISTICS
All parameters apply to both commercial and industrial temperature operation unless otherwise noted. Specifications to -40°C
are guaranteed by design and are not production tested. AC electrical characteristics assume 50% duty cycle for the oscillator,
oscillator frequency > 16MHz, and are not 100% tested, but are guaranteed by design.
1. All signals rated over operating temperature at 33MHz.
2. All signals characterized with load capacitance of 80pF except Port 0, ALE, PSEN , RD and WR at 100pF.
Note that loading should be approximately equal for valid timing.
3. Interfacing to memory devices with float times (turn off times) over 30ns may cause contention. This will not
damage the parts but will cause an increase in operating current.
4. Specifications assume a 50% duty cycle for the oscillator. Port 2 timing will change with the duty cycle
variations.
5. Address is held in a weak latch until over driven by external memory.
相关PDF资料
PDF描述
D38999/26WB98PA CONN PLUG 6POS STRAIGHT W/PINS
DS80C320-ENG+ IC MCU HI SPEED 25MHZ IND 44TQFP
VE-B42-IW-F2 CONVERTER MOD DC/DC 15V 100W
VE-B41-IX-F4 CONVERTER MOD DC/DC 12V 75W
VE-B41-IX-F3 CONVERTER MOD DC/DC 12V 75W
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