参数资料
型号: DS87C530-ENL
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: Microcontroller
英文描述: 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQFP52
封装: TQFP-52
文件页数: 32/45页
文件大小: 649K
代理商: DS87C530-ENL
DS87C530/DS83C530 EPROM/ROM Microcontrollers with Real-Time Clock
38 of 45
EXPLANATION OF AC SYMBOLS
In an effort to remain compatible with the original 8051 family, this device specifies the same parameters
as such devices, using the same symbols. For completeness, the following is an explanation of the
symbols.
t
Time
A
Address
C
Clock
D
Input data
H
Logic level high
L
Logic level low
I
Instruction
P
PSEN
Q
Output data
R
RD signal
V
Valid
W
WR signal
X
No longer a valid logic
level
Z
Tri-State
POWER-CYCLE TIMING CHARACTERISTICS
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Cycle Startup Time
tCSU
1.8
ms
1
Power-On Reset Delay
tPOR
65,536
tCLCL
2
Note 1:
Startup time for crystals varies with load capacitance and manufacturer. Time shown is for an 11.0592MHz crystal manufactured by
Fox.
Note 2:
Reset delay is a synchronous counter of crystal oscillations after crystal startup. At 33MHz, this time is 1.99ms.
EPROM PROGRAMMING AND VERIFICATION
(VCC = 4.5V to 5.5V, TA = +21°C to +27°C.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Programming Voltage
VPP
12.5
13.0
V
1
Programming Supply Current
IPP
50
mA
Oscillator Frequency
1/tCLCL
4
6
MHz
Address Setup to PROG Low
tAVGL
48tCLCL
Address Hold after PROG
tGHAX
48tCLCL
Data Setup to PROG Low
tDVGL
48tCLCL
Data Hold after PROG
tGHDX
48tCLCL
Enable High to VPP
tEHSH
48tCLCL
VPP Setup to PROG Low
tSHGL
10
s
VPP Hold after PROG
tGHSL
10
s
PROG
Width
tGLGH
90
110
s
Address to Data Valid
tAVQV
48tCLCL
Enable Low to Data Valid
tELQV
48tCLCL
Data Float after Enable
tEHQZ
0
48tCLCL
PROG
High to PROG Low
tGHGL
10
s
Note 1: All voltages are referenced to ground.
相关PDF资料
PDF描述
DS87C530-QCL 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQCC52
DS83C530-ECL 8-BIT, MROM, 33 MHz, MICROCONTROLLER, PQFP52
DS83C530-QNL 8-BIT, MROM, 33 MHz, MICROCONTROLLER, PQCC52
DS87C530-QNL 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQCC52
DS83C530-QCL 8-BIT, MROM, 33 MHz, MICROCONTROLLER, PQCC52
相关代理商/技术参数
参数描述
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