参数资料
型号: DS87C530-KCL
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: Microcontroller
英文描述: 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, CQCC52
封装: CERAMIC, LCC-52
文件页数: 29/45页
文件大小: 649K
代理商: DS87C530-KCL
DS87C530/DS83C530 EPROM/ROM Microcontrollers with Real-Time Clock
35 of 45
AC ELECTRICAL CHARACTERISTICS (Note 1)
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
40
1.5tCLCL-5
ns
Port 0 Address Valid to ALE Low
tAVLL
10
0.5tCLCL-5
ns
Address Hold after ALE Low
tLLAX1
(Note 2)
ns
ALE low to Valid Instruction In
tLLIV
43
2.5tCLCL-33
ns
ALE Low to PSEN Low
tLLPL
4
0.5tCLCL-11
ns
PSEN
Pulse Width
tPLPH
55
2tCLCL-5
ns
PSEN
Low to Valid Instruction In
tPLIV
37
2tCLCL-24
ns
Input Instruction Hold after PSEN
tPXIX
0
ns
Input Instruction Float after PSEN
tPXIZ
26
tCLCL-5
ns
Port 0 Address to Valid Instruction In
tAVIV1
59
3tCLCL-32
ns
Port 2 Address to Valid Instruction In
tAVIV2
68
3.5tCLCL-38
ns
PSEN
Low to Address Float
tPLAZ
(Note 2)
ns
Note 1:
All parameters apply to both commercial and industrial temperature range operation unless otherwise noted. Specifications to
-40°C are guaranteed by design and are not production tested. AC electrical characteristics are not 100% tested, but are
characterized and guaranteed by design. All signals are characterized with load capacitance of 80pF except Port 0, ALE,
PSEN, RD
and
WR with 100pF. Interfacing to memory devices with float times (turn off times) over 25ns 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.
Note 2:
Address is driven strongly until ALE falls, and is then held in a weak latch until overdriven externally.
相关PDF资料
PDF描述
DTA-03D-1.5-TA-P POSITION, LINEAR SENSOR-AC, -3-3mm
DTA-01D-3-SA-P POSITION, LINEAR SENSOR-AC, -1-1mm
DTA-03D-1.5-CA-H POSITION, LINEAR SENSOR-AC, -3-3mm
DTA-03D-3-TA-W POSITION, LINEAR SENSOR-AC, -3-3mm
DTA-05D-3-TA-P POSITION, LINEAR SENSOR-AC, -5-5mm
相关代理商/技术参数
参数描述
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